{"id":36,"date":"2026-02-26T01:13:38","date_gmt":"2026-02-25T17:13:38","guid":{"rendered":"https:\/\/blog.ichenfu.cn\/?p=36"},"modified":"2026-02-26T01:27:19","modified_gmt":"2026-02-25T17:27:19","slug":"ctf%e7%bd%91%e7%bb%9c%e5%ae%89%e5%85%a8%e5%85%a5%e9%97%a8%e6%8c%87%e5%8d%97%ef%bc%9a%e4%bb%8e0%e5%88%b01%e6%88%90%e4%b8%bactfer","status":"publish","type":"post","link":"https:\/\/blog.ichenfu.cn\/index.php\/2026\/02\/26\/ctf%e7%bd%91%e7%bb%9c%e5%ae%89%e5%85%a8%e5%85%a5%e9%97%a8%e6%8c%87%e5%8d%97%ef%bc%9a%e4%bb%8e0%e5%88%b01%e6%88%90%e4%b8%bactfer\/","title":{"rendered":"CTF\u7f51\u7edc\u5b89\u5168\u5165\u95e8\u6307\u5357\uff1a\u4ece0\u52301\u6210\u4e3aCTFer"},"content":{"rendered":"\n<p>\u521d\u5b66\u8005: https:\/\/hello-ctf.com\/ \u5efa\u8bae\u67e5\u770b\u9605\u8bfb<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b2c\u4e00\u90e8\u5206\uff1a\u524d\u8a00<\/h2>\n\n\n\n<p><strong>CTF \u662f\u4ec0\u4e48\uff1f<\/strong> \u4e0d\u662f\u9ed1\u5ba2\u653b\u51fb\uff0c\u800c\u662f<strong>\u7f51\u7edc\u5b89\u5168\u9886\u57df\u7684\u201c\u593a\u65d7\u8d5b\u89e3\u9898\u7ade\u8d5b\u201d<\/strong>\u3002\u5b83\u628a\u771f\u5b9e\u7684\u6f0f\u6d1e\u62bd\u8c61\u6210\u4e00\u9053\u9053\u9898\u76ee\uff0c\u8ba9\u4f60\u5bfb\u627e\u5176\u4e2d\u7684flag,\u76ee\u7684\u662f\u8ba9\u4f60\u5728\u53d7\u63a7\u73af\u5883\u4e2d\u5b66\u4e60\u653b\u51fb\u4e0e\u9632\u5fa1\u3002<\/p>\n\n\n\n<p><strong>\u4e09\u79cd\u8d5b\u5236 vs \u65b0\u624b\u5efa\u8bae\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>**\u89e3\u9898\u6a21\u5f0f **\uff1a<strong>\u65b0\u624b\u7684\u4e3b\u6218\u573a<\/strong>\u3002\u4e00\u9053\u9898\u4e00\u4e2a Flag\uff0c\u5404\u505a\u5404\u7684\uff0c\u4e0d\u5e72\u6270\u3002<\/li>\n\n\n\n<li><strong>\u653b\u9632\u6a21\u5f0f (AWD)<\/strong>\uff1a<strong>\u9ad8\u624b\u7684\u4fee\u7f57\u573a<\/strong>\u3002\u7ef4\u62a4\u81ea\u5df1\u7684\u670d\u52a1\u5668\u540c\u65f6\u653b\u51fb\u522b\u4eba\u7684\uff0c\u5b9e\u65f6\u5bf9\u6297\u3002<\/li>\n\n\n\n<li><strong>\u6df7\u5408\u6a21\u5f0f<\/strong>\uff1a\u5148\u89e3\u9898\uff0c\u518d\u653b\u9632\u3002\u901a\u5e38\u662f\u7701\u8d5b\u4ee5\u53ca\u56fd\u8d5b\u7684\u8d5b\u5236\u3002<\/li>\n<\/ol>\n\n\n\n<p><strong>CTF\u5206\u4e3a\u4e94\u4e2a\u65b9\u5411 \u6742\u9879Misc\u3001Web\u5b89\u5168\u3001\u4e8c\u8fdb\u5236Pwn\u3001\u5bc6\u7801\u5b66Crypto\u3001\u9006\u5411\u5b66re\u3001<\/strong><\/p>\n\n\n\n<p><strong>\u5efa\u8bae:\u5148\u4ece Misc \u548c Web \u5f00\u59cb\uff0c\u5efa\u7acb\u4fe1\u5fc3\u3002<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b2c\u4e8c\u90e8\u5206\uff1a\u73af\u5883\u642d\u5efa\u4e0e\u5de5\u5177\u4e0b\u8f7d<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u865a\u62df\u673a\uff08\u5fc5\u88c5\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e3a\u4ec0\u4e48<\/strong>\uff1aCTF \u5de5\u5177\u591a\u4e3a\u9ed1\u5ba2\u5de5\u5177\uff0c\u5bb9\u6613\u5f04\u5d29\u4f60\u7684\u4e3b\u529b\u7cfb\u7edf\u3002<\/li>\n\n\n\n<li><strong>\u63a8\u8350<\/strong>\uff1a<strong>VMware Workstation<\/strong> (Windows\/Linux)<\/li>\n\n\n\n<li><strong>\u955c\u50cf<\/strong>\uff1a<strong>Kali Linux<\/strong> (\u9884\u88c590%\u5de5\u5177\uff0c\u9996\u9009)\u3002\u5982\u679c\u4f60\u7684\u7535\u8111\u914d\u7f6e\u4f4e\uff0c\u53ef\u5728\u865a\u62df\u673a\u91cc\u88c5 <strong>Ubuntu<\/strong> \u6216 <strong>Debian<\/strong> \u4f5c\u4e3a\u7ec3\u4e60\u73af\u5883\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u8054\u7f51\u73af\u5883\u914d\u7f6e<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7f51\u7edc\u6a21\u5f0f<\/strong>\uff1a\u865a\u62df\u673a\u8bbe\u7f6e\u4e3a <strong>NAT \u6a21\u5f0f<\/strong>\uff0c\u80fd\u8054\u7f51\u4e14\u76f8\u5bf9\u5b89\u5168\u3002<\/li>\n\n\n\n<li><strong>\u6362\u4e0b\u8f7d\u6e90<\/strong>\uff1a\u5b89\u88c5\u597d Kali\/Ubuntu \u540e\uff0c\u7b2c\u4e00\u4ef6\u4e8b\u662f\u6362\u56fd\u5185\u6e90\uff08\u6e05\u534e\u6e90\/\u963f\u91cc\u6e90\uff09\uff0c\u5426\u5219\u4e0b\u8f7d\u5de5\u5177\u4f1a\u6162\u5230\u8ba9\u4eba\u5d29\u6e83\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  # Kali \u6362\u6e90\u547d\u4ee4\n  sudo cp \/etc\/apt\/sources.list \/etc\/apt\/sources.list.bak\n  sudo nano \/etc\/apt\/sources.list\n\n  # \u5728\u6587\u4ef6\u4e2d\u5220\u9664\u6240\u6709\u5185\u5bb9\uff0c\u7c98\u8d34\u4ee5\u4e0b\u5185\u5bb9\uff0c\u7136\u540e Ctrl+X, Y, \u56de\u8f66\u4fdd\u5b58\n  deb http:\/\/mirrors.tuna.tsinghua.edu.cn\/kali kali-rolling main non-free contrib\n  deb-src http:\/\/mirrors.tuna.tsinghua.edu.cn\/kali kali-rolling main non-free contrib\n  sudo apt update<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. Web \u5b89\u5168\u6838\u5fc3\u5de5\u5177<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Burp Suite\uff1a<\/strong><\/li>\n\n\n\n<li><strong>\u4f5c\u7528<\/strong>\uff1a\u6293\u5305\u3001\u6539\u5305\u3001\u91cd\u653e\u3001\u7206\u7834\u3002<\/li>\n\n\n\n<li><strong>\u5b89\u88c5<\/strong>\uff1a\u5b83\u662f Java \u5199\u7684\u3002\u5148\u88c5 JDK\uff0c\u53bb Burp \u5b98\u7f51\u4e0b\u8f7d Community Edition (\u514d\u8d39\u591f\u7528)\u3002<\/li>\n\n\n\n<li><strong>\u5fc5\u505a\u6b65\u9aa4<\/strong>\uff1a\u914d\u7f6e\u6d4f\u89c8\u5668\u4ee3\u7406 <code>127.0.0.1:8080<\/code>\uff0c\u5e76<strong>\u5bfc\u5165 Burp \u7684 CA \u8bc1\u4e66<\/strong>\u5230\u6d4f\u89c8\u5668\u4fe1\u4efb\u5217\u8868\u3002\u5426\u5219\u53ea\u80fd\u6293 HTTP\uff0c\u6293\u4e0d\u5230 HTTPS\u3002<\/li>\n\n\n\n<li><strong>SQLMap\uff1a<\/strong><\/li>\n\n\n\n<li><strong>\u5b89\u88c5<\/strong>\uff1aKali \u81ea\u5e26\u3002\u5982\u679c\u6ca1\u6709 <code>sudo apt install sqlmap<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u7b80\u4ecb<\/strong>\uff1a\u81ea\u52a8\u5316\u7684 SQL \u6ce8\u5165\u5de5\u5177\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u5bc6\u7801\u5b66\u4e0e\u6742\u9879\u5de5\u5177<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CyberChef<\/strong> (\u5728\u7ebf)\uff1ahttps:\/\/gchq.github.io\/CyberChef\/\u3002\u4e0d\u7528\u88c5\uff0c\u529f\u80fd\u5168\u5230\u53ef\u6015\u3002(\u5f53\u7136\u7ebf\u4e0b\u6bd4\u8d5b\u9700\u8981\u81ea\u5df1\u88c5\u79bb\u7ebf\u7248)<\/li>\n\n\n\n<li><strong>StegSolve<\/strong>\uff1a\u56fe\u7247\u9690\u5199\u5206\u6790\u3002Java \u73af\u5883\u8fd0\u884c <code>java -jar stegsolve.jar<\/code>\u3002<\/li>\n\n\n\n<li><strong>010 Editor<\/strong>\uff1a\u5341\u516d\u8fdb\u5236\u7f16\u8f91\u5668\uff0c\u7528\u4e8e\u67e5\u770b\u6587\u4ef6\u5934\u3001\u624b\u52a8\u6539\u6570\u636e\u3002<\/li>\n\n\n\n<li><strong>\u968f\u6ce2\u9010\u6d41\u7f16\u7801\u5de5\u5177<\/strong>: <a href=\"http:\/\/1o1o.xyz\/bo_ctfcode.html\" target=\"_blank\"  rel=\"nofollow\" >\u968f\u6ce2\u9010\u6d41\u4fe1\u606f\u5b89\u5168\u7f51<\/a> (\u91cc\u9762\u4e5f\u5305\u62ec\u7684\u6709binwalk\/foremost) \u524d\u671f\u5b66\u4e60\u4e0d\u5efa\u8bae\u4f9d\u8d56\u8fd9\u4e2a\u4e00\u628a\u68ad \u9700\u8981\u591a\u63a5\u89e6\u5176\u4ed6<\/li>\n\n\n\n<li><strong>QR Research<\/strong>: \u4e8c\u7ef4\u7801\u626b\u63cf\u8bc6\u522b<\/li>\n\n\n\n<li><strong>ZipCenOp<\/strong>: \u4f2a\u52a0\u5bc6\u52a0 \/ \u89e3\u5bc6\u5de5\u5177<\/li>\n\n\n\n<li><strong>ARCHPR<\/strong>: \u538b\u7f29\u6587\u4ef6\u5bc6\u7801\u66b4\u529b\u7834\u89e3\u5de5\u5177<\/li>\n\n\n\n<li><strong>Passware Kit Forensic<\/strong> : \u89e3\u5bc6\u5de5\u5177\uff0c\u5404\u7c7b\u6587\u4ef6 \/ \u78c1\u76d8\u5bc6\u7801\u7206\u7834\uff0c\u5bc6\u94a5\u641c\u7d22<\/li>\n\n\n\n<li><strong>Wireshark<\/strong> \u6d41\u91cf\u5206\u6790\u53d6\u8bc1<\/li>\n\n\n\n<li><strong>Volatility<\/strong> \u5185\u5b58\u5206\u6790\u53d6\u8bc1 \u8fd8\u6709\u8bb8\u591a\u5de5\u5177\u8be6\u60c5\u53ef\u4ee5\u770b<a href=\"http:\/\/1o1o.xyz\/ctfsoft.html\" target=\"_blank\"  rel=\"nofollow\" >\u968f\u6ce2\u9010\u6d41\u4fe1\u606f\u5b89\u5168\u7f51<\/a>\u4e0b\u8f7d \u6216\u8005<a href=\"https:\/\/hello-ctf.com\/hc-toolkit\/\" target=\"_blank\"  rel=\"nofollow\" >Index - Hello CTF<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b2c\u4e09\u90e8\u5206\uff1a\u6bcf\u4e2a\u65b9\u5411\u7684\u6838\u5fc3\u4ecb\u7ecd<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1.Misc\u6742\u9879<\/strong><\/h3>\n\n\n\n<p>\uff081\uff09\u6838\u5fc3\u6280\u672f\u4e0e\u8003\u70b9<\/p>\n\n\n\n<p>Misc\uff08Miscellaneous\uff0c\u6742\u9879\uff09\u5b89\u5168\u662f CTF \u7ade\u8d5b\u4e2d\u8986\u76d6\u9762\u6700\u5e7f\u7684\u6280\u672f\u65b9\u5411\uff0c\u6db5\u76d6\u5404\u7c7b\u975e\u4f20\u7edf\u7f51\u7edc\u5b89\u5168\u6280\u672f\u7684\u6742\u9879\u6311\u6218\uff0c\u6838\u5fc3\u8003\u70b9\u5305\u62ec\u9690\u5199\u672f\uff08\u56fe\u7247\u9690\u5199\u3001\u97f3\u9891\u9690\u5199\u3001\u89c6\u9891\u9690\u5199\uff09\u3001\u6d41\u91cf\u5206\u6790\u3001\u538b\u7f29\u5305\u7834\u89e3\u3001\u7f16\u7801\u89e3\u7801\uff08\u5982 Base \u7cfb\u5217\u3001URL \u7f16\u7801\u3001Unicode \u7f16\u7801\uff09\u3001\u6587\u4ef6\u683c\u5f0f\u5206\u6790\u3001\u793e\u4f1a\u5de5\u7a0b\u5b66\u7b49\uff0c\u8981\u6c42\u9009\u624b\u5177\u5907\u5e7f\u6cdb\u7684\u77e5\u8bc6\u9762\u3001\u8f83\u5f3a\u7684\u89c2\u5bdf\u529b\u4e0e\u95ee\u9898\u5206\u6790\u80fd\u529b\uff0c\u719f\u7ec3\u4f7f\u7528\u5404\u7c7b\u5de5\u5177\uff08\u5982 StegSolve\u3001Wireshark\u3001WinRAR\u3001010 Editor \u7b49\uff09\u3002<\/p>\n\n\n\n<p>\u9690\u5199\u672f\u662f Misc \u7c7b\u8d5b\u9898\u7684\u6838\u5fc3\u8003\u70b9\uff0c\u6307\u5c06\u79d8\u5bc6\u4fe1\u606f\u9690\u85cf\u5728\u56fe\u7247\u3001\u97f3\u9891\u3001\u89c6\u9891\u7b49\u8f7d\u4f53\u4e2d\uff0c\u4e0d\u5f71\u54cd\u8f7d\u4f53\u7684\u6b63\u5e38\u4f7f\u7528\uff0c\u5e38\u89c1\u7684\u56fe\u7247\u9690\u5199\u65b9\u6cd5\u5305\u62ec LSB\uff08\u6700\u4f4e\u6709\u6548\u4f4d\uff09\u9690\u5199\u3001EXIF \u4fe1\u606f\u9690\u85cf\u3001\u56fe\u7247\u5c3e\u90e8\u9644\u52a0\u6570\u636e\u3001\u56fe\u7247\u683c\u5f0f\u7be1\u6539\u7b49\uff0c\u9009\u624b\u9700\u4f7f\u7528 StegSolve\u3001zsteg \u7b49\u5de5\u5177\u63d0\u53d6\u9690\u85cf\u4fe1\u606f\uff1b\u97f3\u9891\u9690\u5199\u5e38\u89c1\u65b9\u6cd5\u5305\u62ec\u9891\u8c31\u9690\u5199\u3001\u97f3\u9891\u5e27\u6570\u636e\u9690\u85cf\u7b49\uff0c\u9700\u4f7f\u7528 Audacity \u7b49\u5de5\u5177\u5206\u6790\u97f3\u9891\u9891\u8c31\u6216\u6570\u636e\u3002\u6d41\u91cf\u5206\u6790\u8d5b\u9898\u5219\u63d0\u4f9b\u7f51\u7edc\u6293\u5305\u6587\u4ef6\uff08\u5982 pcap \u683c\u5f0f\uff09\uff0c\u8981\u6c42\u9009\u624b\u4f7f\u7528 Wireshark \u7b49\u5de5\u5177\u5206\u6790\u7f51\u7edc\u6d41\u91cf\uff0c\u63d0\u53d6\u654f\u611f\u4fe1\u606f\uff08\u5982\u8d26\u53f7\u5bc6\u7801\u3001Flag\uff09\u3001\u8bc6\u522b\u653b\u51fb\u884c\u4e3a\u7b49\u3002\u538b\u7f29\u5305\u7834\u89e3\u8003\u70b9\u5305\u62ec\u66b4\u529b\u7834\u89e3\u538b\u7f29\u5305\u5bc6\u7801\u3001\u538b\u7f29\u5305\u4f2a\u52a0\u5bc6\u3001\u591a\u538b\u7f29\u5305\u5d4c\u5957\u7834\u89e3\u7b49\u3002<\/p>\n\n\n\n<p>\uff082\uff09\u5178\u578b\u8d5b\u9898\u5206\u6790<\/p>\n\n\n\n<p>\u67d0 CTF \u89e3\u9898\u8d5b\u4e2d\u7684 Misc \u5b89\u5168\u8d5b\u9898 \u201cHiddenPic\u201d\uff1a\u9898\u76ee\u63d0\u4f9b\u4e00\u5f20\u56fe\u7247 \u201cflag.jpg\u201d\uff0c\u8981\u6c42\u9009\u624b\u4ece\u56fe\u7247\u4e2d\u63d0\u53d6 Flag\u3002\u89e3\u9898\u6b65\u9aa4\u5982\u4e0b\uff1a\u9996\u5148\uff0c\u4f7f\u7528 Windows \u56fe\u7247\u67e5\u770b\u5668\u6253\u5f00\u56fe\u7247\uff0c\u672a\u53d1\u73b0\u660e\u663e\u5f02\u5e38\uff1b\u5176\u6b21\uff0c\u4f7f\u7528 ExifTool \u67e5\u770b\u56fe\u7247\u7684 EXIF \u4fe1\u606f\uff0c\u53d1\u73b0\u5907\u6ce8\u5b58\u5728\u4e00\u6bb5 Base64 \u7f16\u7801\u201cZmxhZ3ttaXNjX3BpY19zaGVsbF98Nzg5fQ==\u201d\uff1b\u63a5\u7740\uff0c\u5bf9\u8be5 Base64 \u5b57\u7b26\u4e32\u8fdb\u884c\u89e3\u7801\uff0c\u5f97\u5230 \u201cflag {misc_pic_shell_789}\u201d\uff0c\u521d\u6b65\u5224\u65ad\u53ef\u80fd\u4e3a Flag\uff0c\u4f46\u63d0\u4ea4\u540e\u63d0\u793a\u9519\u8bef\uff1b\u7136\u540e\uff0c\u4f7f\u7528 StegSolve \u5de5\u5177\u5206\u6790\u56fe\u7247\u7684 LSB \u4f4d\uff0c\u5207\u6362\u5230 Red\u3001Green\u3001Blue \u901a\u9053\u7684\u6700\u4f4e\u6709\u6548\u4f4d\uff0c\u53d1\u73b0\u5b58\u5728\u9690\u85cf\u7684\u4e8c\u8fdb\u5236\u6570\u636e\uff1b\u6700\u540e\uff0c\u5c06\u9690\u85cf\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u5bfc\u51fa\u4e3a\u6587\u4ef6\uff0c\u53d1\u73b0\u662f\u4e00\u4e2a\u52a0\u5bc6\u7684 ZIP \u538b\u7f29\u5305\uff0c\u4f7f\u7528 ARCHPR \u5de5\u5177\u5bf9\u538b\u7f29\u5305\u8fdb\u884c\u66b4\u529b\u7834\u89e3\uff0c\u5f97\u5230\u5bc6\u7801\u201c123456\u201d\uff0c\u89e3\u538b\u540e\u5f97\u5230\u6587\u672c\u6587\u4ef6 \u201ctrue_flag.txt\u201d\uff0c\u6587\u4ef6\u5185\u5bb9\u4e3a \u201cflag {misc_stegano_lsb_123}\u201d\uff0c\u5373\u4e3a\u6b63\u786e Flag\u3002<\/p>\n\n\n\n<p>\u8be5\u8d5b\u9898\u7efc\u5408\u8003\u5bdf\u4e86 EXIF \u4fe1\u606f\u5206\u6790\u3001Base64 \u89e3\u7801\u3001LSB \u9690\u5199\u63d0\u53d6\u3001\u538b\u7f29\u5305\u66b4\u529b\u7834\u89e3\u7b49\u77e5\u8bc6\u70b9\uff0c\u5c5e\u4e8e\u4e2d\u7ea7 Misc \u7c7b\u8d5b\u9898\uff0c\u8981\u6c42\u9009\u624b\u5177\u5907\u5168\u9762\u7684\u77e5\u8bc6\u9762\u4e0e\u5de5\u5177\u4f7f\u7528\u80fd\u529b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2.Web \u5b89\u5168\u7c7b<\/strong><\/h3>\n\n\n\n<p>\uff081\uff09\u6838\u5fc3\u6280\u672f\u4e0e\u8003\u70b9<\/p>\n\n\n\n<p>Web \u5b89\u5168\u662f CTF \u7ade\u8d5b\u4e2d\u6700\u70ed\u95e8\u7684\u6280\u672f\u65b9\u5411\u4e4b\u4e00\uff0c\u6838\u5fc3\u56f4\u7ed5 Web \u5e94\u7528\u7cfb\u7edf\u7684\u5b89\u5168\u6f0f\u6d1e\u5c55\u5f00\uff0c\u4e3b\u8981\u6d89\u53ca SQL \u6ce8\u5165\u3001\u8de8\u7ad9\u811a\u672c\u653b\u51fb\uff08XSS\uff09\u3001\u8de8\u7ad9\u8bf7\u6c42\u4f2a\u9020\uff08CSRF\uff09\u3001\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e\u3001\u6743\u9650\u7ed5\u8fc7\u3001\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3001\u903b\u8f91\u6f0f\u6d1e\u7b49\u8003\u70b9\uff0c\u8981\u6c42\u53c2\u8d5b\u9009\u624b\u638c\u63e1 Web \u5e94\u7528\u7684\u5de5\u4f5c\u539f\u7406\u3001\u5e38\u89c1\u6f0f\u6d1e\u7684\u5f62\u6210\u673a\u5236\u4e0e\u5229\u7528\u65b9\u6cd5\uff0c\u4ee5\u53ca\u76f8\u5173\u5de5\u5177\uff08\u5982 Burp Suite\u3001SQLMap\u3001Nmap\u7b49\uff09\u7684\u4f7f\u7528\u3002<\/p>\n\n\n\n<p>SQL \u6ce8\u5165\u6f0f\u6d1e\u662f Web \u5b89\u5168\u7c7b\u8d5b\u9898\u7684\u9ad8\u9891\u8003\u70b9\uff0c\u5176\u6838\u5fc3\u539f\u7406\u662f\u653b\u51fb\u8005\u901a\u8fc7\u5728\u7528\u6237\u8f93\u5165\u6846\u4e2d\u6ce8\u5165 SQL \u8bed\u53e5\uff0c\u5229\u7528\u5e94\u7528\u7a0b\u5e8f\u5bf9\u8f93\u5165\u6570\u636e\u8fc7\u6ee4\u4e0d\u4e25\u683c\u7684\u7f3a\u9677\uff0c\u5b9e\u73b0\u5bf9\u6570\u636e\u5e93\u7684\u975e\u6cd5\u8bbf\u95ee\uff0c\u83b7\u53d6\u654f\u611f\u6570\u636e\u6216\u6267\u884c\u6076\u610f\u64cd\u4f5c\uff0c\u8003\u70b9\u5305\u62ec\u8054\u5408\u67e5\u8be2\u6ce8\u5165\u3001\u76f2\u6ce8\uff08\u5e03\u5c14\u76f2\u6ce8\u3001\u65f6\u95f4\u76f2\u6ce8\uff09\u3001\u5806\u53e0\u6ce8\u5165\u7b49\u3002\u8de8\u7ad9\u811a\u672c\u653b\u51fb\uff08XSS\uff09\u5219\u662f\u901a\u8fc7\u6ce8\u5165\u6076\u610f\u811a\u672c\u4ee3\u7801\u5230 Web \u9875\u9762\u4e2d\uff0c\u5f53\u5176\u4ed6\u7528\u6237\u8bbf\u95ee\u8be5\u9875\u9762\u65f6\uff0c\u811a\u672c\u4ee3\u7801\u88ab\u6267\u884c\uff0c\u5b9e\u73b0\u7a83\u53d6 cookie\u3001\u4f2a\u9020\u7528\u6237\u64cd\u4f5c\u7b49\u653b\u51fb\uff0c\u8003\u70b9\u5305\u62ec\u5b58\u50a8\u578b XSS\u3001\u53cd\u5c04\u578b XSS\u3001DOM \u578b XSS \u7684\u5229\u7528\u4e0e\u9632\u5fa1\u7ed5\u8fc7\u3002\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e\u662f\u6307\u5e94\u7528\u7a0b\u5e8f\u672a\u5bf9\u4e0a\u4f20\u6587\u4ef6\u7684\u7c7b\u578b\u3001\u5185\u5bb9\u8fdb\u884c\u4e25\u683c\u9a8c\u8bc1\uff0c\u5bfc\u81f4\u653b\u51fb\u8005\u4e0a\u4f20\u6076\u610f\u811a\u672c\u6587\u4ef6\uff08\u5982 php\u4e00\u53e5\u8bdd\u6728\u9a6c\uff09\uff0c\u8fdb\u800c\u83b7\u53d6\u670d\u52a1\u5668\u6743\u9650\uff0c\u8003\u70b9\u5305\u62ec\u6587\u4ef6\u7c7b\u578b\u7ed5\u8fc7\uff08MIME \u7c7b\u578b\u6b3a\u9a97\u3001\u6587\u4ef6\u540e\u7f00\u540d\u7ed5\u8fc7\uff09\u3001\u6587\u4ef6\u5185\u5bb9\u9a8c\u8bc1\u7ed5\u8fc7\u3001\u670d\u52a1\u5668\u89e3\u6790\u6f0f\u6d1e\u5229\u7528\u7b49\u3002<\/p>\n\n\n\n<p>\uff082\uff09\u5178\u578b\u8d5b\u9898\u5206\u6790<\/p>\n\n\n\n<p>\u67d0 CTF \u89e3\u9898\u8d5b\u4e2d\u7684 Web \u5b89\u5168\u8d5b\u9898 \u201cEasyLogin\u201d\uff1a\u9898\u76ee\u63d0\u4f9b\u4e00\u4e2a\u7b80\u5355\u7684\u767b\u5f55\u9875\u9762\uff0c\u8981\u6c42\u9009\u624b\u901a\u8fc7\u6f0f\u6d1e\u83b7\u53d6\u7ba1\u7406\u5458\u6743\u9650\u5e76\u83b7\u53d6 Flag\u3002\u89e3\u9898\u6b65\u9aa4\u5982\u4e0b\uff1a\u9996\u5148\uff0c\u9009\u624b\u5c1d\u8bd5\u4f7f\u7528\u9ed8\u8ba4\u8d26\u53f7\u5bc6\u7801\u767b\u5f55\u5931\u8d25\uff0c\u901a\u8fc7 Burp Suite \u6293\u53d6\u767b\u5f55\u8bf7\u6c42\u5305\uff0c\u53d1\u73b0\u8bf7\u6c42\u53c2\u6570\u4e3a \u201cusername=xxx&amp;password=xxx\u201d\uff0c\u4e14\u672a\u5bf9\u8f93\u5165\u8fdb\u884c\u52a0\u5bc6\u5904\u7406\uff1b\u5176\u6b21\uff0c\u5c1d\u8bd5 SQL \u6ce8\u5165\uff0c\u5728 username \u53c2\u6570\u4e2d\u8f93\u5165\u201cadmin' or 1=1--\u201d\uff0cpassword \u53c2\u6570\u4efb\u610f\u8f93\u5165\uff0c\u63d0\u4ea4\u540e\u53d1\u73b0\u767b\u5f55\u6210\u529f\uff0c\u521d\u6b65\u5224\u65ad\u5b58\u5728 SQL \u6ce8\u5165\u6f0f\u6d1e\uff1b\u968f\u540e\uff0c\u5229\u7528\u8054\u5408\u67e5\u8be2\u6ce8\u5165\u83b7\u53d6\u6570\u636e\u5e93\u7ed3\u6784\uff0c\u8f93\u5165\u201cadmin' union select 1,database (),3--\u201d\uff0c\u83b7\u53d6\u6570\u636e\u5e93\u540d\u201cctf_db\u201d\uff1b\u63a5\u7740\uff0c\u67e5\u8be2\u6570\u636e\u5e93\u4e2d\u7684\u8868\u540d\uff0c\u5f97\u5230\u8868\u540d\u201cusers\u201d\uff1b\u6700\u540e\uff0c\u67e5\u8be2 users \u8868\u4e2d\u7684\u5b57\u6bb5\u503c\uff0c\u8f93\u201cadmin' union select 1,group_concat (username,':',password),3 from users--\u201d\uff0c\u83b7\u53d6\u7ba1\u7406\u5458\u8d26\u53f7\u5bc6\u7801 \u201cadmin:flag{web_sql_injection_123}\u201d\uff0c\u5176\u4e2d flag \u5b57\u6bb5\u5373\u4e3a\u6240\u9700 Flag\u3002<\/p>\n\n\n\n<p>\u8be5\u8d5b\u9898\u8003\u5bdf\u4e86 SQL \u6ce8\u5165\u6f0f\u6d1e\u7684\u57fa\u672c\u5229\u7528\u65b9\u6cd5\uff0c\u91cd\u70b9\u68c0\u9a8c\u9009\u624b\u5bf9 SQL \u6ce8\u5165\u539f\u7406\u7684\u7406\u89e3\u3001\u8bf7\u6c42\u5305\u5206\u6790\u80fd\u529b\u4e0e\u6ce8\u5165\u8bed\u53e5\u6784\u9020\u80fd\u529b\uff0c\u5c5e\u4e8e\u5165\u95e8\u7ea7 Web \u5b89\u5168\u8d5b\u9898\uff0c\u9002\u5408\u521d\u5b66\u8005\u638c\u63e1\u57fa\u7840\u6f0f\u6d1e\u5229\u7528\u601d\u8def\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3.\u5bc6\u7801\u5b66\u7c7b<\/strong><\/h3>\n\n\n\n<p>\uff081\uff09\u6838\u5fc3\u6280\u672f\u4e0e\u8003\u70b9<\/p>\n\n\n\n<p>\u5bc6\u7801\u5b66\u662f CTF \u7ade\u8d5b\u7684\u57fa\u7840\u6280\u672f\u65b9\u5411\uff0c\u4e3b\u8981\u8003\u5bdf\u9009\u624b\u5bf9\u53e4\u5178\u5bc6\u7801\u4e0e\u73b0\u4ee3\u5bc6\u7801\u7b97\u6cd5\u7684\u7406\u89e3\u4e0e\u7834\u89e3\u80fd\u529b\uff0c\u6838\u5fc3\u8003\u70b9\u5305\u62ec\u53e4\u5178\u5bc6\u7801\uff08\u5982\u51ef\u6492\u5bc6\u7801\u3001\u7ef4\u5409\u5c3c\u4e9a\u5bc6\u7801\u3001\u6805\u680f\u5bc6\u7801\u3001Playfair \u5bc6\u7801\uff09\u3001\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\uff08\u5982 AES\u3001DES\u30013DES\uff09\u3001\u975e\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\uff08\u5982 RSA\uff09\u3001\u54c8\u5e0c\u51fd\u6570\uff08\u5982 MD5\u3001SHA-256\uff09\u3001\u5bc6\u94a5\u4ea4\u6362\u534f\u8bae\uff08\u5982 Diffie-Hellman\uff09\u7b49\uff0c\u8981\u6c42\u9009\u624b\u638c\u63e1\u5404\u7c7b\u5bc6\u7801\u7b97\u6cd5\u7684\u539f\u7406\u3001\u52a0\u5bc6\u89e3\u5bc6\u6d41\u7a0b\uff0c\u4ee5\u53ca\u5e38\u89c1\u7684\u7834\u89e3\u65b9\u6cd5\uff08\u5982\u66b4\u529b\u7834\u89e3\u3001\u9891\u7387\u5206\u6790\u3001\u6570\u5b66\u653b\u51fb\uff09\u3002<\/p>\n\n\n\n<p>\u53e4\u5178\u5bc6\u7801\u8d5b\u9898\u91cd\u70b9\u8003\u5bdf\u5bc6\u7801\u7b97\u6cd5\u7684\u8bc6\u522b\u4e0e\u624b\u5de5\u7834\u89e3\u80fd\u529b\uff0c\u4f8b\u5982\u51ef\u6492\u5bc6\u7801\u901a\u8fc7\u79fb\u4f4d\u66ff\u6362\u5b57\u6bcd\u5b9e\u73b0\u52a0\u5bc6\uff0c\u7834\u89e3\u65f6\u53ef\u901a\u8fc7\u9891\u7387\u5206\u6790\u6216\u66b4\u529b\u5c1d\u8bd5\u79fb\u4f4d\u6b21\u6570\u83b7\u53d6\u660e\u6587\uff1b\u7ef4\u5409\u5c3c\u4e9a\u5bc6\u7801\u4f7f\u7528\u591a\u8868\u79fb\u4f4d\u52a0\u5bc6\uff0c\u7834\u89e3\u9700\u5148\u786e\u5b9a\u5bc6\u94a5\u957f\u5ea6\uff08\u5982\u5361\u897f\u65af\u57fa\u8bd5\u9a8c\u3001\u91cd\u5408\u6307\u6570\u6cd5\uff09\uff0c\u518d\u9010\u8868\u7834\u89e3\u5bc6\u94a5\u3002\u73b0\u4ee3\u5bc6\u7801\u7b97\u6cd5\u8d5b\u9898\u5219\u66f4\u6ce8\u91cd\u6570\u5b66\u539f\u7406\u4e0e\u5de5\u5177\u4f7f\u7528\uff0c\u4f8b\u5982 RSA \u7b97\u6cd5\u7684\u7834\u89e3\u5e38\u6d89\u53ca\u5927\u6574\u6570\u5206\u89e3\u3001\u6b27\u62c9\u51fd\u6570\u8ba1\u7b97\u9519\u8bef\u3001\u79c1\u94a5\u6cc4\u9732\u3001\u4f4e\u52a0\u5bc6\u6307\u6570\u653b\u51fb\u7b49\uff0c\u9009\u624b\u9700\u5229\u7528\u6570\u5b66\u5de5\u5177\uff08\u5982 SageMath\uff09\u8fdb\u884c\u8ba1\u7b97\uff1bAES \u7b97\u6cd5\u7684\u7834\u89e3\u53ef\u80fd\u6d89\u53ca\u5bc6\u94a5\u6cc4\u9732\u3001\u6a21\u5f0f\u9009\u62e9\u4e0d\u5f53\uff08\u5982 ECB \u6a21\u5f0f\u7684\u5b89\u5168\u6027\u7f3a\u9677\uff09\u7b49\u95ee\u9898\u3002\u6b64\u5916\uff0c\u54c8\u5e0c\u51fd\u6570\u7684\u78b0\u649e\u653b\u51fb\u3001\u76d0\u503c\uff08Salt\uff09\u7684\u7834\u89e3\u4e5f\u662f\u5e38\u89c1\u8003\u70b9\u3002<\/p>\n\n\n\n<p>\uff082\uff09\u5178\u578b\u8d5b\u9898\u5206\u6790<\/p>\n\n\n\n<p>\u67d0CTF\u89e3\u9898\u8d5b\u4e2d\u7684\u5bc6\u7801\u5b66\u8d5b\u9898\u201cCryptoEasy\u201d\uff1a\u9898\u76ee\u7ed9\u51fa\u52a0\u5bc6\u7684\u5bc6\u6587\u7f16\u7801 \u201cU2FsdGVkX18zS1dZQlRBU0JFQVFDQ0RFR0VSU0VNT05F\u201d\uff0c\u5e76\u63d0\u793a\u52a0\u5bc6\u65b9\u5f0f\u4e3a \u201cAES-ECB\u201d\uff0c\u5bc6\u94a5\u4e3a 6 \u4f4d\u5c0f\u5199\u5b57\u6bcd\uff0c\u8981\u6c42\u9009\u624b\u7834\u89e3\u83b7\u53d6\u660e\u6587 Flag\u3002\u89e3\u9898\u6b65\u9aa4\u5982\u4e0b\uff1a\u9996\u5148\uff0c\u89c2\u5bdf\u5bc6\u6587\u683c\u5f0f\uff0c\u53d1\u73b0\u5bc6\u6587\u4ee5 \u201cU2FsdGVkX18\u201d \u5f00\u5934\uff0c\u5224\u65ad\u4e3a OpenSSL AES \u52a0\u5bc6\u540e\u7684 Base64 \u7f16\u7801\u7ed3\u679c\uff0c\u9700\u5148\u8fdb\u884c Base64 \u89e3\u7801\uff0c\u5f97\u5230\u4e8c\u8fdb\u5236\u6570\u636e\uff1b\u5176\u6b21\uff0c\u660e\u786e\u52a0\u5bc6\u7b97\u6cd5\u4e3a AES-ECB\uff0c\u5bc6\u94a5\u957f\u5ea6\u4e3a 6 \u4f4d\u5c0f\u5199\u5b57\u6bcd\uff08\u5bc6\u94a5\u7a7a\u95f4\u4e3a 26^6=308915776\uff09\uff0c\u9002\u5408\u4f7f\u7528\u66b4\u529b\u7834\u89e3\uff1b\u63a5\u7740\uff0c\u7f16\u5199 Python \u811a\u672c\uff0c\u5229\u7528 pycryptodome \u5e93\uff0c\u904d\u5386\u6240\u6709 6 \u4f4d\u5c0f\u5199\u5b57\u6bcd\u7ec4\u5408\u4f5c\u4e3a\u5bc6\u94a5\uff0c\u5bf9\u89e3\u7801\u540e\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u8fdb\u884c AES-ECB \u89e3\u5bc6\uff0c\u5224\u65ad\u89e3\u5bc6\u7ed3\u679c\u662f\u5426\u7b26\u5408 Flag \u683c\u5f0f\uff08\u5982 \u201cflag {xxx}\u201d\uff09\uff1b\u6700\u540e\uff0c\u901a\u8fc7\u811a\u672c\u8fd0\u884c\uff0c\u627e\u5230\u6b63\u786e\u5bc6\u94a5 \u201cabc123\u201d\uff0c\u89e3\u5bc6\u5f97\u5230\u660e\u6587 \u201cflag {aes_ecb_brute_force_456}\u201d\uff0c\u83b7\u53d6 Flag\u3002<\/p>\n\n\n\n<p>\u8be5\u8d5b\u9898\u8003\u5bdf\u4e86 Base64 \u7f16\u7801\u89e3\u7801\u3001AES-ECB \u7b97\u6cd5\u539f\u7406\u3001\u66b4\u529b\u7834\u89e3\u65b9\u6cd5\u4e0e\u811a\u672c\u7f16\u5199\u80fd\u529b\uff0c\u5c5e\u4e8e\u5165\u95e8\u7ea7\u5bc6\u7801\u5b66\u8d5b\u9898\uff0c\u91cd\u70b9\u68c0\u9a8c\u9009\u624b\u5bf9\u5bc6\u7801\u7b97\u6cd5\u7684\u5e94\u7528\u4e0e\u5de5\u5177\u4f7f\u7528\u80fd\u529b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4.\u4e8c\u8fdb\u5236\u5b89\u5168\u7c7b<\/strong><\/h3>\n\n\n\n<p>\uff081\uff09\u6838\u5fc3\u6280\u672f\u4e0e\u8003\u70b9<\/p>\n\n\n\n<p>\u4e8c\u8fdb\u5236\u5b89\u5168\u662f CTF \u7ade\u8d5b\u7684\u6838\u5fc3\u6280\u672f\u65b9\u5411\u4e4b\u4e00\uff0c\u805a\u7126\u4e8e\u4e8c\u8fdb\u5236\u7a0b\u5e8f\uff08\u5982 exe\u3001elf \u6587\u4ef6\uff09\u7684\u6f0f\u6d1e\u6316\u6398\u4e0e\u5229\u7528\uff0c\u4e3b\u8981\u6d89\u53ca\u7f13\u51b2\u533a\u6ea2\u51fa\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u6f0f\u6d1e\u3001\u5806\u6ea2\u51fa\u3001\u6808\u6ea2\u51fa\u3001\u6574\u6570\u6ea2\u51fa\u3001ROP\uff08\u8fd4\u56de\u5bfc\u5411\u7f16\u7a0b\uff09\u3001SROP\uff08\u4fe1\u53f7\u5bfc\u5411\u7f16\u7a0b\uff09\u7b49\u8003\u70b9\uff0c\u8981\u6c42\u53c2\u8d5b\u9009\u624b\u638c\u63e1\u8ba1\u7b97\u673a\u7ec4\u6210\u539f\u7406\u3001\u64cd\u4f5c\u7cfb\u7edf\u5e95\u5c42\u673a\u5236\uff08\u5982\u6808\u3001\u5806\u7ed3\u6784\uff09\u3001\u6c47\u7f16\u8bed\u8a00\u3001\u8c03\u8bd5\u5de5\u5177\uff08GDB\u3001IDA Pro\uff09\u7684\u4f7f\u7528\u3002<\/p>\n\n\n\n<p>\u7f13\u51b2\u533a\u6ea2\u51fa\u662f\u4e8c\u8fdb\u5236\u5b89\u5168\u7c7b\u8d5b\u9898\u7684\u7ecf\u5178\u8003\u70b9\uff0c\u5176\u539f\u7406\u662f\u7a0b\u5e8f\u5728\u8bfb\u53d6\u7528\u6237\u8f93\u5165\u65f6\uff0c\u672a\u5bf9\u8f93\u5165\u957f\u5ea6\u8fdb\u884c\u4e25\u683c\u9650\u5236\uff0c\u5bfc\u81f4\u8f93\u5165\u6570\u636e\u8d85\u51fa\u7f13\u51b2\u533a\u5bb9\u91cf\uff0c\u8986\u76d6\u76f8\u90bb\u7684\u5185\u5b58\u533a\u57df\uff08\u5982\u8fd4\u56de\u5730\u5740\uff09\uff0c\u8fdb\u800c\u63a7\u5236\u7a0b\u5e8f\u6267\u884c\u6d41\u7a0b\uff0c\u8003\u70b9\u5305\u62ec\u6808\u6ea2\u51fa\u3001\u5806\u6ea2\u51fa\u7684\u5229\u7528\uff0c\u4ee5\u53ca NX\uff08\u4e0d\u53ef\u6267\u884c\u6808\uff09\u3001ASLR\uff08\u5730\u5740\u7a7a\u95f4\u5e03\u5c40\u968f\u673a\u5316\uff09\u3001Canary\uff08\u6808\u4fdd\u62a4\uff09\u7b49\u9632\u62a4\u673a\u5236\u7684\u7ed5\u8fc7\u3002\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u4f7f\u7528 printf\u3001sprintf \u7b49\u683c\u5f0f\u5316\u8f93\u51fa\u51fd\u6570\u65f6\uff0c\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u7531\u7528\u6237\u8f93\u5165\u63a7\u5236\uff0c\u653b\u51fb\u8005\u901a\u8fc7\u6784\u9020\u7279\u6b8a\u683c\u5f0f\u5b57\u7b26\u4e32\uff08\u5982\u201c%x\u201d\u201c%n\u201d\uff09\uff0c\u5b9e\u73b0\u8bfb\u53d6\u5185\u5b58\u6570\u636e\u3001\u4fee\u6539\u5185\u5b58\u503c\u7b49\u64cd\u4f5c\uff0c\u8fdb\u800c\u83b7\u53d6\u6743\u9650\u6216\u6267\u884c\u6076\u610f\u4ee3\u7801\u3002ROP \u6280\u672f\u662f\u5728 NX \u9632\u62a4\u673a\u5236\u4e0b\u7684\u4e00\u79cd\u6f0f\u6d1e\u5229\u7528\u6280\u672f\uff0c\u901a\u8fc7\u62fc\u63a5\u7a0b\u5e8f\u4e2d\u5df2\u6709\u7684\u4ee3\u7801\u7247\u6bb5\uff08gadget\uff09\uff0c\u6784\u9020\u6076\u610f\u6267\u884c\u6d41\u7a0b\uff0c\u5b9e\u73b0\u7cfb\u7edf\u8c03\u7528\u6216\u4ee3\u7801\u6267\u884c\u3002<\/p>\n\n\n\n<p>\uff082\uff09\u5178\u578b\u8d5b\u9898\u5206\u6790<\/p>\n\n\n\n<p>\u67d0 CTF \u653b\u9632\u8d5b\u4e2d\u7684\u4e8c\u8fdb\u5236\u5b89\u5168\u8d5b\u9898\u201cpwn1\u201d\uff1a\u9898\u76ee\u63d0\u4f9b\u4e00\u4e2a 32 \u4f4d Linux \u5e73\u53f0\u7684 elf \u7a0b\u5e8f\uff0c\u8981\u6c42\u9009\u624b\u6316\u6398\u6f0f\u6d1e\u5e76\u6784\u9020 exp\uff08\u6f0f\u6d1e\u5229\u7528\u811a\u672c\uff09\uff0c\u83b7\u53d6\u670d\u52a1\u5668\u4e0a\u7684 Flag\u3002\u89e3\u9898\u6b65\u9aa4\u5982\u4e0b\uff1a\u9996\u5148\uff0c\u4f7f\u7528 file \u547d\u4ee4\u67e5\u770b\u7a0b\u5e8f\u4fe1\u606f\uff0c\u786e\u8ba4\u662f 32 \u4f4d ELF \u53ef\u6267\u884c\u6587\u4ef6\uff0c\u65e0\u58f3\uff1b\u5176\u6b21\uff0c\u4f7f\u7528 IDA Pro \u53cd\u7f16\u8bd1\u7a0b\u5e8f\uff0c\u5206\u6790\u4e3b\u51fd\u6570\u903b\u8f91\uff0c\u53d1\u73b0\u7a0b\u5e8f\u5b58\u5728\u4e00\u4e2a\u8bfb\u53d6\u7528\u6237\u8f93\u5165\u7684\u51fd\u6570\u201cread_input\u201d\uff0c\u8be5\u51fd\u6570\u4f7f\u7528\u201cread (0, buf, 0x100)\u201d \u8bfb\u53d6\u8f93\u5165\uff0c\u4f46 buf \u7f13\u51b2\u533a\u5927\u5c0f\u4ec5\u4e3a 0x20\uff0c\u5b58\u5728\u6808\u6ea2\u51fa\u6f0f\u6d1e\uff1b\u63a5\u7740\uff0c\u4f7f\u7528 GDB \u8c03\u8bd5\u7a0b\u5e8f\uff0c\u786e\u5b9a buf \u7684\u504f\u79fb\u91cf\uff08\u901a\u8fc7\u53d1\u9001 cyclic \u5b57\u7b26\u4e32\u5e76\u67e5\u770b\u7a0b\u5e8f\u5d29\u6e83\u65f6\u7684 eip \u5bc4\u5b58\u5668\u503c\uff0c\u8ba1\u7b97\u504f\u79fb\u91cf\u4e3a 0x28\uff09\uff1b\u7136\u540e\uff0c\u68c0\u67e5\u7a0b\u5e8f\u7684\u9632\u62a4\u673a\u5236\uff0c\u53d1\u73b0\u5f00\u542f\u4e86 NX \u9632\u62a4\uff0c\u4f46\u672a\u5f00\u542f ASLR \u4e0e Canary\uff1b\u6700\u540e\uff0c\u6784\u9020 ROP \u94fe\uff0c\u5229\u7528\u7a0b\u5e8f\u4e2d\u5df2\u6709\u7684 gadget\uff08\u5982 pop eax; pop ebx; pop ecx; pop edx; int 0x80\uff09\uff0c\u8c03\u7528 execve (\"\/bin\/sh\", NULL, NULL) \u7cfb\u7edf\u8c03\u7528\uff0c\u83b7\u53d6 shell\uff0c\u8fdb\u800c\u8bfb\u53d6 Flag \u6587\u4ef6\u3002<\/p>\n\n\n\n<p>\u8be5\u8d5b\u9898\u8003\u5bdf\u4e86\u6808\u6ea2\u51fa\u6f0f\u6d1e\u7684\u6316\u6398\u4e0e\u5229\u7528\u3001ROP \u94fe\u7684\u6784\u9020\u3001\u8c03\u8bd5\u5de5\u5177\u7684\u4f7f\u7528\uff0c\u5c5e\u4e8e\u4e2d\u7ea7\u4e8c\u8fdb\u5236\u5b89\u5168\u8d5b\u9898\uff0c\u8981\u6c42\u9009\u624b\u5177\u5907\u624e\u5b9e\u7684\u5e95\u5c42\u6280\u672f\u57fa\u7840\u4e0e\u6f0f\u6d1e\u5229\u7528\u601d\u7ef4\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5\u3001\u9006\u5411\u5de5\u7a0b\u7c7b<\/strong><\/h3>\n\n\n\n<p>\uff081\uff09\u6838\u5fc3\u6280\u672f\u4e0e\u8003\u70b9<\/p>\n\n\n\n<p>\u9006\u5411\u5de5\u7a0b\u662f CTF \u7ade\u8d5b\u7684\u91cd\u8981\u6280\u672f\u65b9\u5411\uff0c\u6838\u5fc3\u662f\u901a\u8fc7\u5206\u6790\u4e8c\u8fdb\u5236\u7a0b\u5e8f\u7684\u6c47\u7f16\u4ee3\u7801\u6216\u53cd\u7f16\u8bd1\u4ee3\u7801\uff0c\u8fd8\u539f\u7a0b\u5e8f\u7684\u529f\u80fd\u903b\u8f91\uff0c\u6316\u6398\u9690\u85cf\u7684 Flag \u6216\u7834\u89e3\u7a0b\u5e8f\u7684\u9a8c\u8bc1\u673a\u5236\uff0c\u4e3b\u8981\u8003\u70b9\u5305\u62ec\u7a0b\u5e8f\u8131\u58f3\uff08\u5982 UPX \u58f3\u3001ASPack \u58f3\uff09\u3001\u6c47\u7f16\u8bed\u8a00\u5206\u6790\u3001\u63a7\u5236\u6d41\u5206\u6790\u3001\u5b57\u7b26\u4e32\u89e3\u5bc6\u3001\u7b97\u6cd5\u8fd8\u539f\u3001\u53cd\u8c03\u8bd5\u6280\u672f\u7ed5\u8fc7\u7b49\uff0c\u8981\u6c42\u9009\u624b\u638c\u63e1\u6c47\u7f16\u8bed\u8a00\uff08x86\u3001x64\u3001ARM\uff09\u3001\u53cd\u7f16\u8bd1\u5de5\u5177\uff08IDA Pro\u3001Ghidra\uff09\u3001\u8c03\u8bd5\u5de5\u5177\uff08GDB\u3001x64dbg\uff09\u7684\u4f7f\u7528\uff0c\u5177\u5907\u8f83\u5f3a\u7684\u903b\u8f91\u63a8\u7406\u4e0e\u4ee3\u7801\u8fd8\u539f\u80fd\u529b\u3002<\/p>\n\n\n\n<p>\u7a0b\u5e8f\u8131\u58f3\u662f\u9006\u5411\u5de5\u7a0b\u7684\u57fa\u7840\u8003\u70b9\uff0c\u8bb8\u591a CTF \u8d5b\u9898\u4e2d\u7684\u4e8c\u8fdb\u5236\u7a0b\u5e8f\u4f1a\u52a0\u58f3\u4fdd\u62a4\uff08\u5982 UPX \u538b\u7f29\u58f3\u3001VMProtect \u865a\u62df\u673a\u58f3\uff09\uff0c\u9009\u624b\u9700\u5148\u4f7f\u7528\u8131\u58f3\u5de5\u5177\uff08\u5982 UPX -d\uff09\u6216\u624b\u52a8\u8131\u58f3\uff0c\u8fd8\u539f\u7a0b\u5e8f\u7684\u539f\u59cb\u4ee3\u7801\u3002\u5b57\u7b26\u4e32\u89e3\u5bc6\u8003\u70b9\u662f\u6307\u7a0b\u5e8f\u4e2d\u7684\u5173\u952e\u5b57\u7b26\u4e32\uff08\u5982 Flag\u3001\u5bc6\u94a5\uff09\u5728\u7f16\u8bd1\u65f6\u88ab\u52a0\u5bc6\u5b58\u50a8\uff0c\u8fd0\u884c\u65f6\u52a8\u6001\u89e3\u5bc6\uff0c\u9009\u624b\u9700\u901a\u8fc7\u5206\u6790\u89e3\u5bc6\u51fd\u6570\u7684\u903b\u8f91\uff0c\u8fd8\u539f\u89e3\u5bc6\u7b97\u6cd5\uff0c\u83b7\u53d6\u539f\u59cb\u5b57\u7b26\u4e32\u3002\u7b97\u6cd5\u8fd8\u539f\u5219\u662f\u9006\u5411\u5de5\u7a0b\u7684\u6838\u5fc3\u96be\u70b9\uff0c\u8981\u6c42\u9009\u624b\u901a\u8fc7\u5206\u6790\u7a0b\u5e8f\u7684\u6c47\u7f16\u4ee3\u7801\uff0c\u8fd8\u539f\u7a0b\u5e8f\u4e2d\u5b9e\u73b0\u7684\u52a0\u5bc6\u7b97\u6cd5\u3001\u9a8c\u8bc1\u903b\u8f91\uff08\u5982\u6ce8\u518c\u673a\u7b97\u6cd5\uff09\uff0c\u8fdb\u800c\u6784\u9020\u7b26\u5408\u8981\u6c42\u7684\u8f93\u5165\uff0c\u83b7\u53d6 Flag\u3002\u6b64\u5916\uff0c\u53cd\u8c03\u8bd5\u6280\u672f\uff08\u5982\u68c0\u6d4b\u8c03\u8bd5\u5668\u8fdb\u7a0b\u3001\u4fee\u6539\u4e2d\u65ad\u5411\u91cf\u8868\uff09\u7684\u7ed5\u8fc7\u4e5f\u662f\u5e38\u89c1\u8003\u70b9\uff0c\u9009\u624b\u9700\u638c\u63e1\u76f8\u5173\u8c03\u8bd5\u6280\u5de7\uff0c\u7a81\u7834\u7a0b\u5e8f\u7684\u53cd\u8c03\u8bd5\u4fdd\u62a4\u3002<\/p>\n\n\n\n<p>\uff082\uff09\u5178\u578b\u8d5b\u9898\u5206\u6790<\/p>\n\n\n\n<p>\u67d0 CTF \u89e3\u9898\u8d5b\u4e2d\u7684\u9006\u5411\u5de5\u7a0b\u8d5b\u9898\u201cReverseMe\u201d\uff1a\u9898\u76ee\u63d0\u4f9b\u4e00\u4e2a Windows \u5e73\u53f0\u7684 exe \u7a0b\u5e8f\uff0c\u8fd0\u884c\u7a0b\u5e8f\u540e\u8981\u6c42\u8f93\u5165\u6ce8\u518c\u7801\uff0c\u8f93\u5165\u6b63\u786e\u5373\u53ef\u663e\u793a Flag\uff0c\u8981\u6c42\u9009\u624b\u9006\u5411\u5206\u6790\u7a0b\u5e8f\uff0c\u83b7\u53d6\u6b63\u786e\u6ce8\u518c\u7801\u6216\u76f4\u63a5\u63d0\u53d6 Flag\u3002\u89e3\u9898\u6b65\u9aa4\u5982\u4e0b\uff1a\u9996\u5148\uff0c\u4f7f\u7528 PEiD \u5de5\u5177\u68c0\u6d4b\u7a0b\u5e8f\u662f\u5426\u52a0\u58f3\uff0c\u53d1\u73b0\u7a0b\u5e8f\u672a\u52a0\u58f3\uff0c\u4e3a 32 \u4f4d Windows \u7a0b\u5e8f\uff1b\u5176\u6b21\uff0c\u4f7f\u7528 IDA Pro \u53cd\u7f16\u8bd1\u7a0b\u5e8f\uff0c\u5206\u6790\u4e3b\u51fd\u6570\u903b\u8f91\uff0c\u53d1\u73b0\u7a0b\u5e8f\u8bfb\u53d6\u7528\u6237\u8f93\u5165\u7684\u6ce8\u518c\u7801\u540e\uff0c\u8c03\u7528 \u201ccheck_regcode\u201d\u51fd\u6570\u8fdb\u884c\u9a8c\u8bc1\uff0c\u9a8c\u8bc1\u901a\u8fc7\u5219\u8f93Flag\uff1b\u63a5\u7740\uff0c\u5206\u6790 \u201ccheck_regcode\u201d\u51fd\u6570\u7684\u6c47\u7f16\u4ee3\u7801\uff0c\u53d1\u73b0\u8be5\u51fd\u6570\u7684\u903b\u8f91\u4e3a\uff1a\u6ce8\u518c\u7801\u957f\u5ea6\u5fc5\u987b\u4e3a 8 \u4f4d\uff0c\u524d 4 \u4f4d\u4e3a \u201cCTF_\u201d\uff0c\u540e 4 \u4f4d\u4e3a\u524d 4 \u4f4d\u5b57\u7b26\u4e32\u7684 MD5 \u503c\u524d 4 \u4f4d\u5b57\u7b26\uff1b\u4f8b\u5982\uff0c\u524d 4 \u4f4d \u201cCTF_\u201d \u7684 MD5 \u503c\u4e3a\u201ce10adc3949ba59abbe56e057f20f883e\u201d\uff0c\u524d 4 \u4f4d\u5b57\u7b26\u4e3a \u201ce10a\u201d\uff0c\u56e0\u6b64\u6b63\u786e\u6ce8\u518c\u7801\u4e3a \u201cCTF_e10a\u201d\uff1b\u6700\u540e\uff0c\u8fd0\u884c\u7a0b\u5e8f\uff0c\u8f93\u5165\u6b63\u786e\u6ce8\u518c\u7801\uff0c\u7a0b\u5e8f\u8f93\u51fa Flag\u201cflag{reverse_regcode_check_789}\u201d\u3002<\/p>\n\n\n\n<p>\u8be5\u8d5b\u9898\u8003\u5bdf\u4e86\u7a0b\u5e8f\u53cd\u7f16\u8bd1\u5206\u6790\u3001\u51fd\u6570\u903b\u8f91\u8fd8\u539f\u3001\u7b80\u5355\u7b97\u6cd5\u7834\u89e3\u80fd\u529b\uff0c\u5c5e\u4e8e\u5165\u95e8\u7ea7\u9006\u5411\u5de5\u7a0b\u8d5b\u9898\uff0c\u9002\u5408\u9009\u624b\u638c\u63e1\u9006\u5411\u5de5\u7a0b\u7684\u57fa\u672c\u601d\u8def\u4e0e\u65b9\u6cd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b2c\u56db\u90e8\u5206\uff1a\u5b66\u4e60\u6b65\u9aa4\u4e0e\u5237\u9898\u5e73\u53f0<\/h2>\n\n\n\n<p>CTF \u4e16\u754c\u91cc\u6ca1\u6709\u6807\u51c6\u6559\u6750\uff0c\u53ea\u6709\u4e0d\u65ad\u6d8c\u73b0\u7684\u65b0\u6311\u6218\u3002\u4f60\u9700\u8981\u5b66\u4f1a\u7684\u4e0d\u662f\u6b7b\u8bb0\u786c\u80cc\uff0c\u800c\u662f<strong>\u201c\u5982\u4f55\u5b66\u4e60\u201d<\/strong>\u672c\u8eab.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e00.\u300c\u6a21\u4eff -&gt; \u5206\u6790 -&gt; \u91cd\u6784\u300d\u2014\u2014\u4ece\u6284\u5230\u521b\u9020<\/h3>\n\n\n\n<p>\u65b0\u624b\u6700\u5f00\u59cb\u7684\u8def\u5f84\uff0c\u4e00\u5b9a\u662f\u4ece\u201c\u6284\u201d\u5f00\u59cb\u7684\u3002\u4f46\u201c\u6284\u201d\u4e5f\u6709\u9ad8\u7ea7\u548c\u4f4e\u7ea7\u7684\u5206\u522b\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u9636\u6bb5\u4e00\uff1a\u6a21\u4eff<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u72b6\u6001<\/strong>\uff1a\u9762\u5bf9\u9898\u76ee\uff0c\u6beb\u65e0\u5934\u7eea\uff0c\u76f4\u63a5\u641c\u7d22 <code>\u9898\u76ee\u540d\u5b57 + writeup<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u600e\u4e48\u505a<\/strong>\uff1a\u627e\u5230\u4e00\u7bc7\u9898\u89e3\uff0c<strong>\u4e00\u6b65\u4e00\u6b65\u5b8c\u5168\u7167\u505a<\/strong>\u3002\u8f93\u5165\u4e00\u6a21\u4e00\u6837\u7684\u547d\u4ee4\uff0c\u4f7f\u7528\u4e00\u6a21\u4e00\u6837\u7684\u5de5\u5177\uff0c\u76f4\u5230\u62ff\u5230 Flag\u3002<\/li>\n\n\n\n<li><strong>\u76ee\u7684<\/strong>\uff1a<strong>\u6d88\u706d\u964c\u751f\u611f<\/strong>\u3002\u4f60\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u7b2c\u4e00\u6b21\u8ba4\u8bc6\u4e86 <code>Stegsolve<\/code>\uff0c\u7b2c\u4e00\u6b21\u7528\u4e86 <code>sqlmap<\/code>\uff0c\u7b2c\u4e00\u6b21\u5199\u4e86 Python \u811a\u672c\u3002<\/li>\n\n\n\n<li><strong>\u5173\u952e<\/strong>\uff1a<code>Flag<\/code> \u662f\u6b21\u8981\u7684\uff0c<strong>\u5de5\u5177\u94fe<\/strong>\u662f\u4e3b\u8981\u7684\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u9636\u6bb5\u4e8c\uff1a\u5206\u6790\u601d\u8003<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u72b6\u6001<\/strong>\uff1a\u4f60\u5df2\u7ecf\u7167\u7740\u505a\u51fa\u4e86 10 \u9053\u9898\uff0c\u4f46\u611f\u89c9\u8fd8\u662f\u4ec0\u4e48\u90fd\u4e0d\u4f1a\u3002<\/li>\n\n\n\n<li><strong>\u600e\u4e48\u505a<\/strong>\uff1a\u5f00\u59cb\u601d\u8003 \u201c\u4e3a\u4ec0\u4e48\u201d<\/li>\n\n\n\n<li>\u62ff\u5230\u4e00\u5f20\u56fe\u7247\uff0c\u4e3a\u4ec0\u4e48\u4ed6\u5148\u770b\u5c5e\u6027\uff0c\u518d\u7528 StegSolve\uff1f<\/li>\n\n\n\n<li>\u62ff\u5230\u4e00\u4e2a\u767b\u5f55\u6846\uff0c\u4e3a\u4ec0\u4e48\u4ed6\u5148\u6293\u5305\uff0c\u518d\u5728\u53c2\u6570\u91cc\u52a0\u5355\u5f15\u53f7 <code>'<\/code>\uff1f<\/li>\n\n\n\n<li>\u62ff\u5230\u4e00\u6bb5\u5bc6\u6587\uff0c\u4e3a\u4ec0\u4e48\u4ed6\u5148\u5224\u65ad\u662f Base64\uff0c\u800c\u4e0d\u662f Hex\uff1f<\/li>\n\n\n\n<li><strong>\u76ee\u7684<\/strong>\uff1a\u628a\u9898\u89e3\u91cc\u7684\u201c\u64cd\u4f5c\u6b65\u9aa4\u201d\u63d0\u70bc\u6210<strong>\u201c\u89e3\u9898\u68c0\u67e5\u6e05\u5355\u201d<\/strong>\u3002\u5f62\u6210\u808c\u8089\u8bb0\u5fc6\u548c\u76f4\u89c9\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u9636\u6bb5\u4e09\uff1a\u91cd\u6784\u601d\u8def<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u72b6\u6001<\/strong>\uff1a\u770b\u5230\u9898\u76ee\uff0c\u4e0d\u518d\u5148\u641c\u9898\u89e3\uff0c\u800c\u662f\u5148\u5217\u51fa\u81ea\u5df1\u7684\u5047\u8bbe\u3002<\/li>\n\n\n\n<li><strong>\u600e\u4e48\u505a\uff1a<\/strong><\/li>\n\n\n\n<li>\u201c\u8fd9\u9898\u662f\u4e2a\u767b\u5f55\u9875\uff0c\u6211\u60f3\u5230\u4e86 SQL \u6ce8\u5165\uff0c\u5e94\u8be5\u8bd5\u8bd5 <code>admin' or 1=1 --<\/code>\u3002\u201d<\/li>\n\n\n\n<li>\u201c\u8fd9\u56fe\u770b\u8d77\u6765\u5f88\u666e\u901a\uff0c\u4f46\u989c\u8272\u6709\u70b9\u602a\uff0c\u53ef\u80fd\u662f LSB \u9690\u5199\uff0c\u4e0a StegSolve \u8bd5\u8bd5\u3002\u201d<\/li>\n\n\n\n<li>\u201c\u8fd9\u4e32\u5bc6\u6587\u5f88\u957f\uff0c\u5f00\u5934\u662f <code>U2FsdGVkX1...<\/code>\uff0c\u5178\u578b\u7684 OpenSSL \u52a0\u5bc6\uff0c\u5f97\u627e AES-Iv.\u201d (\u6b64\u65f6\u4f60\u5df2\u7ecf\u5f00\u59cb\u4e3b\u52a8\u7504\u522b\u4fe1\u606f)<\/li>\n\n\n\n<li><strong>\u76ee\u7684<\/strong>\uff1a<strong>\u81ea\u6211\u6d88\u5316<\/strong>\u3002\u628a\u522b\u4eba\u7684\u65b9\u6cd5\uff0c\u53d8\u6210\u4e86\u81ea\u5df1\u7684\u672c\u80fd\u3002\u8fd9\u65f6\uff0c\u4f60\u624d\u7b97\u771f\u6b63\u201c\u5b66\u4f1a\u201d\u4e86\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e8c.\u300c\u4ee5\u8d5b\u4ee3\u7ec3\u300d\u2014\u2014\u5728\u5b9e\u6218\u4e2d\u8fdb\u5316<\/h3>\n\n\n\n<p>\u4e0d\u8981\u7b49\u5230\u201c\u5b66\u4f1a\u4e86\u201d\u518d\u53bb\u6bd4\u8d5b\uff0c\u56e0\u4e3a\u6c38\u8fdc\u5b66\u4e0d\u5b8c\u3002\u6bd4\u8d5b\u662f\u6700\u597d\u7684\u8bad\u7ec3\u573a\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u9009\u62e9\u5e73\u53f0<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u65b0\u624b\u6751<\/strong>\uff1a<strong>BugKu CTF<\/strong>\u3002\u9898\u76ee\u5206\u503c\u4f4e\uff0c\u9898\u89e3\u591a\uff0c\u975e\u5e38\u9002\u5408\u7ec3\u4e60\u201c\u6a21\u4eff\u201d\u3002<\/li>\n\n\n\n<li><strong>\u8fdb\u9636\u573a<\/strong>\uff1a**BUUCTF \u3002\u9898\u76ee\u8d28\u91cf\u9ad8\uff0c\u96be\u5ea6\u8de8\u5ea6\u5927\uff0c\u662f\u78e8\u7ec3\u201c\u5206\u6790\u601d\u8003\u201d\u7684\u6700\u4f73\u573a\u6240\u3002<\/li>\n\n\n\n<li><strong>\u5b9e\u6218\u533a<\/strong>\uff1a<strong>\u653b\u9632\u4e16\u754c (XCTF)<\/strong>\u3001<strong>\u6bcf\u4e2a\u4e3e\u529e\u7684\u6bd4\u8d5b<\/strong>\u3002\u9002\u5408\u68c0\u9a8c\u81ea\u5df1\u201c\u91cd\u6784\u601d\u8def\u201d\u7684\u80fd\u529b\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u5982\u4f55\u5237\u9898<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e0d\u8981\u6309\u987a\u5e8f\u5237<\/strong>\uff1a\u6309\u5206\u7c7b\u5237\uff08Web\u3001Misc\uff09\u3002\u8fd9\u80fd\u8ba9\u4f60\u96c6\u4e2d\u7cbe\u529b\uff0c\u653b\u514b\u4e00\u7c7b\u95ee\u9898\uff0c\u5efa\u7acb\u77e5\u8bc6\u4f53\u7cfb\u3002<\/li>\n\n\n\n<li><strong>\u8bbe\u5b9a\u65f6\u95f4\u9650\u5236<\/strong>\uff1a\u4e00\u9053\u9898\uff0c\u7ed9\u81ea\u5df1 1 \u5c0f\u65f6.<\/li>\n\n\n\n<li>0-15\u5206\u949f\uff1a\u81ea\u5df1\u6478\u7d22\uff0c\u5c1d\u8bd5\u6240\u6709\u4f60\u80fd\u60f3\u5230\u7684\u70b9\u3002<\/li>\n\n\n\n<li>15-30\u5206\u949f\uff1a\u5f00\u59cb\u641c\u7d22\u5173\u952e\u8bcd\uff08<code>CTF \u56fe\u7247\u9690\u5199<\/code>\u3001<code>CTF SQL\u6ce8\u5165\u4fee\u590d<\/code>\uff09\uff0c\u4e0d\u641c\u5177\u4f53\u9898\u89e3\u3002<\/li>\n\n\n\n<li>30-60\u5206\u949f\uff1a\u5982\u679c\u8fd8\u662f\u505a\u4e0d\u51fa\u6765\uff0c<strong>\u76f4\u63a5\u641c\u9898\u89e3\uff0c\u770b\u61c2\u5b83\uff0c\u505a\u51fa\u6765\uff0c\u5e76\u6807\u6ce8\u8fd9\u9053\u9898\u662f\u201c\u534a\u72ec\u7acb\u5b8c\u6210\u201d<\/strong>\u3002<\/li>\n\n\n\n<li>1\u5c0f\u65f6\u540e\u8fd8\u5361\u6b7b\uff1a<strong>\u76f4\u63a5\u653e\u5f03<\/strong>\uff0c\u8df3\u5230\u4e0b\u4e00\u9898\u3002\u4e0d\u8981\u6b7b\u78d5<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u53c2\u52a0\u6bd4\u8d5b<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u4e2a\u6708\u90fd\u4f1a\u6709\u5404\u79cd\u7ebf\u4e0a\u8d5b\uff0c\u54ea\u6015\u53ea\u662f\u201c\u91cd\u5728\u53c2\u4e0e\u201d\uff0c\u4e5f\u8981\u53bb\u62a5\u540d\u3002<\/li>\n\n\n\n<li>\u6bd4\u8d5b\u7684\u610f\u4e49\uff1a<\/li>\n\n\n\n<li>\u4f53\u9a8c\u771f\u5b9e\u7684\u65f6\u95f4\u538b\u529b\u3002<\/li>\n\n\n\n<li>\u770b\u5230\u81ea\u5df1\u6ca1\u89c1\u8fc7\u7684\u65b0\u9898\u578b\u3002<\/li>\n\n\n\n<li><strong>\u8d5b\u540e\u590d\u76d8\uff08\u6700\u91cd\u8981\uff09<\/strong>\uff1a\u6bd4\u8d5b\u7ed3\u675f\uff0c\u4e0d\u4f1a\u7684\u9898\uff0c<strong>\u5fc5\u987b\u82b1\u53cc\u500d\u7684\u65f6\u95f4\u53bb\u641e\u61c2<\/strong>\u3002\u522b\u4eba\u7684 Writeup \u5c31\u662f\u4f60\u7684\u201c\u6b66\u529f\u79d8\u7c4d\u201d\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e09.\u300c\u5efa\u7acb\u5de5\u5177\u7bb1\u4e0e\u77e5\u8bc6\u5e93\u300d<\/h3>\n\n\n\n<p>\u4e1c\u4e00\u6994\u5934\u897f\u4e00\u68d2\u5b50\u5b66\u6765\u7684\u77e5\u8bc6\u5f88\u5bb9\u6613\u5fd8\u3002\u4f60\u9700\u8981\u5efa\u7acb\u81ea\u5df1\u7684\u6839\u636e\u5730\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u6253\u9020\u4f60\u7684\u5de5\u5177\u7bb1<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u672c\u5730\u5de5\u5177\u7bb1\uff1a<\/li>\n\n\n\n<li><strong>\u7f16\u7801\u89e3\u7801<\/strong>\uff1aCyberChef (\u6d4f\u89c8\u5668\u4e66\u7b7e\u6536\u85cf\u597d)\u3001\u968f\u6ce2\u9010\u6d41 (\u4e0b\u8f7d\u672c\u5730)\u3002<\/li>\n\n\n\n<li><strong>\u6587\u672c\/\u4e8c\u8fdb\u5236<\/strong>\uff1a010 Editor\u3001Notepad++\u3002<\/li>\n\n\n\n<li><strong>\u6d41\u91cf<\/strong>\uff1aWireshark\u3002<\/li>\n\n\n\n<li><strong>\u9690\u5199<\/strong>\uff1aStegSolve\u3001binwalk (\u547d\u4ee4\u884c)\u3001zsteg (\u547d\u4ee4\u884c)\u3002<\/li>\n\n\n\n<li><strong>\u9006\u5411<\/strong>\uff1aIDA Pro \/ Ghidra\u3002<\/li>\n\n\n\n<li><strong>Web<\/strong>\uff1aBurp Suite\u3001\u6d4f\u89c8\u5668\u63d2\u4ef6 (Hackbar, Wappalyzer)\u3002\u7b49\u2026<\/li>\n\n\n\n<li><strong>\u4e0d\u6c42\u7cbe\u901a\uff0c\u4f46\u6c42\u773c\u719f<\/strong>\uff1a\u77e5\u9053\u4ec0\u4e48\u5de5\u5177\u80fd\u89e3\u51b3\u4ec0\u4e48\u95ee\u9898\uff0c\u5177\u4f53\u7528\u65f6\u518d\u67e5\u624b\u518c\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u7ef4\u62a4\u4f60\u7684\u201c\u9519\u9898\u672c\u201d\uff08\u77e5\u8bc6\u5e93\uff09<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e0d\u8981\u53ea\u6536\u85cf\u9898\u89e3\u94fe\u63a5<\/strong>\uff01\u94fe\u63a5\u4f1a\u5931\u6548\u3002<\/li>\n\n\n\n<li>\u5efa\u7acb Notion\/\u98de\u4e66\/GitHub Wiki \u683c\u5f0f\u5982\u4e0b\uff1a<\/li>\n\n\n\n<li><strong>\u9898\u76ee\u540d\u79f0<\/strong>\uff1a[BUU] EasyWeb<\/li>\n\n\n\n<li><strong>\u65e5\u671f<\/strong>\uff1a2026-1-12<\/li>\n\n\n\n<li><strong>\u6d89\u53ca\u6f0f\u6d1e<\/strong>\uff1a\u6587\u4ef6\u4e0a\u4f20\u3001RCE\u3001\u4f2a\u9759\u6001\u89e3\u6790<\/li>\n\n\n\n<li><strong>\u6838\u5fc3 Payload<\/strong>\uff1a<code>Burp Content-Type: image\/jpeg<\/code><\/li>\n\n\n\n<li><strong>\u4e00\u53e5\u8bdd\u603b\u7ed3<\/strong>\uff1a<code>\u5728\u4e0a\u4f20.php\u6587\u4ef6\u65f6\uff0c\u5982\u679c\u540e\u7aef\u767d\u540d\u5355\u6821\u9a8c\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u4fee\u6539MIME\u7c7b\u578b\u6216\u5229\u7528\u89e3\u6790\u6f0f\u6d1e\u3002<\/code><\/li>\n\n\n\n<li><strong>\u5b9a\u671f\u56de\u987e<\/strong>\uff1a\u6bcf\u5468\u672b\u82b1\u534a\u5c0f\u65f6\uff0c\u770b\u770b\u81ea\u5df1\u8fd9\u5468\u8bb0\u4e86\u4ec0\u4e48\u3002\u4e0b\u6b21\u9047\u5230\u7c7b\u4f3c\u573a\u666f\uff0c\u76f4\u63a5\u641c\u81ea\u5df1\u7684\u7b14\u8bb0\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u56db.\u300c\u5b66\u4f1a\u63d0\u95ee\u4e0e\u641c\u7d22\u300d\u2014\u2014\u793e\u4ea4\u6d41\u7684\u6b63\u786e\u59ff\u52bf<\/h3>\n\n\n\n<p>\u95ed\u95e8\u9020\u8f66\u662f CTF \u5b66\u4e60\u7684\u5927\u5fcc\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u641c\u7d22\u7684\u827a\u672f<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7cbe\u51c6\u5173\u952e\u8bcd<\/strong>\uff1a<code>CTF [\u5e73\u53f0\u540d] [\u9898\u540d] [\u6f0f\u6d1e\u7c7b\u578b] writeup<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u82f1\u6587\u641c\u7d22<\/strong>\uff1a\u5f88\u591a\u9ad8\u8d28\u91cf\u7684\u9898\u89e3\u662f\u82f1\u6587\u7684\uff0c\u5b66\u4f1a\u7528 <code>Site:github.com CTF CTF_name<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u5b66\u4f1a\u770b Writeup \u7684\u8bc4\u8bba\u533a<\/strong>\uff1a\u6709\u65f6\u5019\u8bc4\u8bba\u533a\u6709\u66f4\u7b80\u5355\u7684\u89e3\u6cd5\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u63d0\u95ee\u7684\u827a\u672f<\/h4>\n\n\n\n<p>\u7fa4\u91cc\u7684\u5927\u4f6c\u5f88\u5fd9\uff0c\u770b\u61c2\u4f60\u7684\u95ee\u9898\u9700\u8981\u65f6\u95f4\u3002\u4e00\u4e2a\u5408\u683c\u7684\u63d0\u95ee\u5e94\u8be5\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u9519\u8bef\u793a\u8303<\/strong>\uff1a\u201c\u5927\u4f6c\uff0c\u8fd9\u9898\u600e\u4e48\u8fc7\uff1f\u6c42\u5e26\u3002\u201d (\u6ca1\u4eba\u7406\u4f60)<\/p>\n\n\n\n<p><strong>\u6b63\u786e\u793a\u8303<\/strong>\uff1a \u201c\u5404\u4f4d\u5e08\u5085\u597d\uff0c\u6211\u5728\u505a [\u5e73\u53f0\u540d] \u7684 [\u9898\u540d]\u3002<\/p>\n\n\n\n<p><strong>\u9898\u76ee\u7c7b\u578b<\/strong>\uff1aWeb\uff0c\u7591\u4f3c SQL \u76f2\u6ce8\u3002<\/p>\n\n\n\n<p><strong>\u6211\u7684\u5c1d\u8bd5<\/strong>\uff1a\u6211\u7528 SQLMap \u626b\u4e86\uff0c\u53d1\u73b0\u5b58\u5728\u6ce8\u5165\u70b9\uff0c\u4f46 <code>--dbs<\/code> \u62ff\u4e0d\u5230\u5e93\u540d\u3002<\/p>\n\n\n\n<p><strong>\u62a5\u9519\/\u73b0\u8c61<\/strong>\uff1a\u9875\u9762\u4e00\u76f4\u8fd4\u56de <code>false<\/code>\uff0c\u6ca1\u6709\u56de\u663e\u3002<\/p>\n\n\n\n<p><strong>\u6211\u7684\u4ee3\u7801\/\u547d\u4ee4<\/strong>\uff1a<code>sqlmap -u \"http:\/\/xxx.com?id=1\" --batch --dbs<\/code><\/p>\n\n\n\n<p><strong>\u56f0\u60d1<\/strong>\uff1a\u8fd9\u662f\u6211\u7684\u547d\u4ee4\u53c2\u6570\u6709\u95ee\u9898\uff0c\u8fd8\u662f\u9898\u76ee\u6709\u7279\u6b8a\u7684\u8fc7\u6ee4\uff0c\u8bf7\u95ee\u8be5\u5f80\u54ea\u4e2a\u65b9\u5411\u67e5\uff1f\u201d<\/p>\n<\/blockquote>\n\n\n\n<p>\u8fd9\u6837\u63d0\u95ee\uff0c\u5927\u4f6c\u4e00\u770b\u5c31\u77e5\u9053\u4f60<strong>\u601d\u8003\u8fc7<\/strong>\uff0c\u5927\u6982\u7387\u4f1a\u6307\u70b9\u4f60\u3002\u8fd9\u5c31\u662f<strong>\u201c\u9ad8\u60c5\u5546\u63d0\u95ee\u201d<\/strong>\u3002\u5927\u5bb6\u559c\u6b22\u5e2e\u201c\u52aa\u529b\u8fc7\u201d\u7684\u65b0\u4eba\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u4e94. \u5e38\u7528\u7684\u5237\u9898\u5e73\u53f0:<\/strong><\/h3>\n\n\n\n<p><strong>1.BuuCTF<\/strong>(<a href=\"https:\/\/buuoj.cn\/\" target=\"_blank\"  rel=\"nofollow\" >BUUCTF\u5728\u7ebf\u8bc4\u6d4b<\/a>)<\/p>\n\n\n\n<p><strong>2.\u653b\u9632\u4e16\u754c<\/strong>(https:\/\/adworld.xctf.org.cn\/)<\/p>\n\n\n\n<p><strong>3.BugKuCTF<\/strong>(https:\/\/ctf.bugku.com\/)<\/p>\n\n\n\n<p><strong>4.\u8d5b\u4e8b\u590d\u73b0\u5e73\u53f0<\/strong>(<a href=\"https:\/\/gz.imxbt.cn\/\" target=\"_blank\"  rel=\"nofollow\" >Review::CTF<\/a>)<\/p>\n\n\n\n<p><strong>5.\u9752\u5c11\u5e74CTF<\/strong> https:\/\/www.qsnctf.com\/<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b2c\u4e94\u90e8\u5206\uff1a\u7ed3\u8bed<\/h2>\n\n\n\n<p><strong>\u81f4\u6bcf\u4e00\u4f4d\u521d\u5b66\u8005<\/strong>\uff1a CTF \u662f\u4e00\u6761\u7531\u65e0\u6570\u4e2a <code>Segmentation fault<\/code> (\u6bb5\u9519\u8bef) \u548c <code>Connection timed out<\/code> (\u8fde\u63a5\u8d85\u65f6) \u94fa\u5c31\u7684\u9053\u8def\u3002\u4f46\u6bcf\u5f53\u4f60\u89e3\u5f00\u4e00\u9053\u9898\uff0c\u62ff\u5230\u90a3\u4e2a <code>flag{...}<\/code> \u7684\u77ac\u95f4\uff0c\u5c4f\u5e55\u524d\u7684\u5fae\u5149\u5c31\u662f\u4f60\u6210\u957f\u7684\u8bc1\u660e\u3002<\/p>\n\n\n\n<p><strong>\u73b0\u5728\uff0c\u8bf7\u6253\u5f00\u4f60\u7684\u865a\u62df\u673a\uff0c\u5f00\u59cb\u4f60\u7684\u7b2c\u4e00\u573a\u6218\u6597\u3002<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"\u60f3\u6210\u4e3aCTFer\u5374\u4e0d\u77e5\u4ece\u4f55\u4e0b\u624b\uff1f\u8fd9\u4efd\u6307\u5357\u5c06\u5e26\u4f60\u4ece\u96f6\u8d77\u6b65\uff0c\u63ed\u79d8\u4e94\u5927\u65b9\u5411\u7684\u6838\u5fc3\u8003\u70b9\u4e0e\u5fc5\u5907\u5de5\u5177\uff0c\u52a9\u4f60\u8f7b\u677e\u5165\u95e8\u7f51\u7edc\u5b89\u5168\u7ade\u8d5b\u3002","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[5],"tags":[7,8],"class_list":["post-36","post","type-post","status-publish","format-standard","hentry","category-ctf","tag-ctf","tag-8"],"_links":{"self":[{"href":"https:\/\/blog.ichenfu.cn\/index.php\/wp-json\/wp\/v2\/posts\/36","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ichenfu.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ichenfu.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ichenfu.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ichenfu.cn\/index.php\/wp-json\/wp\/v2\/comments?post=36"}],"version-history":[{"count":2,"href":"https:\/\/blog.ichenfu.cn\/index.php\/wp-json\/wp\/v2\/posts\/36\/revisions"}],"predecessor-version":[{"id":44,"href":"https:\/\/blog.ichenfu.cn\/index.php\/wp-json\/wp\/v2\/posts\/36\/revisions\/44"}],"wp:attachment":[{"href":"https:\/\/blog.ichenfu.cn\/index.php\/wp-json\/wp\/v2\/media?parent=36"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ichenfu.cn\/index.php\/wp-json\/wp\/v2\/categories?post=36"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ichenfu.cn\/index.php\/wp-json\/wp\/v2\/tags?post=36"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}