\u301051CTO.com \u72ec\u5bb6\u7279\u7a3f\u3011\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u4f55\u8c13HTTP\u54cd\u5e94\u62c6\u5206\u4ee5\u53ca\u653b\u51fb\u884c\u4e3a\u662f\u600e\u6837\u8fdb\u884c\u7684\u3002\u4e00\u65e6\u5f7b\u5e95\u7406\u89e3\u4e86\u5176\u53d1\u751f\u539f\u7406\uff08\u8be5\u539f\u7406\u5f80\u5f80\u88ab\u4eba\u6240\u8bef\u89e3\uff09\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u63a2\u7a76\u5982\u4f55\u5229\u7528\u54cd\u5e94\u62c6\u5206\u6267\u884c\u8de8\u7ad9\u70b9\u811a\u672c\uff08\u7b80\u79f0XSS\uff09\u3002\u63a5\u4e0b\u6765\u81ea\u7136\u5c31\u662f\u8ba8\u8bba\u5982\u679c\u76ee\u6807\u7f51\u7ad9\u5b58\u5728\u54cd\u5e94\u62c6\u5206\u6f0f\u6d1e\uff0c\u6211\u4eec\u8981\u5982\u4f55\u5229\u7528\u8fd9\u4e00\u673a\u4f1a\u7ec4\u7ec7CSRF\uff08\u5373\u8de8\u7ad9\u70b9\u4f2a\u9020\u8bf7\u6c42\uff09\u653b\u51fb\u3002\u6700\u540e\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u54ea\u4e9b\u9884\u9632\u63aa\u65bd\u80fd\u591f\u62b5\u5fa1\u8fd9\u4e9b\u653b\u51fb\u884c\u4e3a\u3002\u5982\u679c\u5927\u5bb6\u5bf9\u8fd9\u4e2a\u8bdd\u9898\u611f\u5174\u8da3\uff0c\u4e0d\u59a8\u7ee7\u7eed\u8bfb\u4e0b\u53bb\u3002<\/p>\n
<\/p>\n
\u4ec0\u4e48\u662fHTTP\u54cd\u5e94\u62c6\u5206\uff1f<\/p>\n
<\/p>\n
\u9996\u5148\u8ba9\u6211\u4eec\u8bbe\u60f3\u4e00\u4e0b\u67d0\u4e2a\u5177\u5907\u591a\u79cd\u8bed\u8a00\u9009\u9879\u7684\u9875\u9762\u3002\u8be5\u9875\u9762\u7684\u9ed8\u8ba4\u8bed\u8a00\u4e3a\u82f1\u8bed\uff0c\u4f46\u5176\u4e2d\u540c\u65f6\u5177\u5907\u4e00\u4e2a\u4e0b\u62c9\u83dc\u5355\uff0c\u5141\u8bb8\u6211\u4eec\u5728\u9009\u5b9a\u5176\u4e2d\u5bf9\u5e94\u7684\u5176\u5b83\u8bed\u79cd\u540e\uff0c\u6574\u4e2a\u9875\u9762\u7684\u8bed\u8a00\u4e5f\u540c\u65f6\u53d1\u751f\u5207\u6362\u3002\u6bd4\u65b9\u8bf4\u6839\u636e\u521d\u59cb\u9875\u9762\u7684\u914d\u7f6e\uff0c302\u91cd\u65b0\u6307\u5411\u7684\u7ed3\u679c\u4e3ahttp:\/\/www.abc.com\/index.php?lang=en\u3002\u4f46\u5bf9\u4e8e\u6765\u81ea\u5fb7\u56fd\u7684\u7528\u6237\u800c\u8a00\uff0c\u5f53\u7136\u5e0c\u671b\u9875\u9762\u5185\u5bb9\u4ee5\u5fb7\u8bed\u5448\u73b0\uff0c\u8fd9\u65f6\u4ed6\u4eec\u5c31\u53ef\u4ee5\u4ece\u4e0b\u62c9\u83dc\u5355\u7684\u5907\u7528\u8bed\u8a00\u4e2d\u8fdb\u884c\u9009\u62e9\u3002\u8fd9\u4f7f\u5f97302\u91cd\u65b0\u6307\u5411\u5c06\u88ab\u53d1\u5f80\u670d\u52a1\u5668\u4e0a\u7684\u5fb7\u8bed\u9875\u9762\u2014\u2014http:\/\/www.abc.com\/index.php?lang=german\u3002\u7528\u6237\u7684\u6d4f\u89c8\u5668\u4f1a\u9075\u5faa\u91cd\u65b0\u6307\u5411\u7684\u5f15\u5bfc\uff0c\u5e76\u5c06\u5fb7\u8bed\u9875\u9762\u6b63\u5e38\u5448\u73b0\u51fa\u6765\u3002<\/p>\n
<\/p>\n
\u73b0\u5728\u8ba9\u6211\u4eec\u601d\u8003\u4e00\u4e0bHTTP 302\u91cd\u65b0\u6307\u5411\u54cd\u5e94\u7684\u4e3b\u4f53\u5185\u5bb9\u3002\u5185\u5bb9\u5927\u4f53\u5982\u4e0b\uff1a<\/p>\n
<\/p>\n
HTTP\/1.1 302 Moved Temporarily<\/p>\n
Location: http:\/\/www.abc.com\/index.php?lang=en<\/p>\n
\u6216\u8005\u662f\uff1a<\/p>\n
<\/p>\n
HTTP\/1.1 302 Moved Temporarily<\/p>\n
Location: http:\/\/www.abc.com\/index.php?lang=german<\/p>\n
\u5927\u5bb6\u53ef\u80fd\u5df2\u7ecf\u53d1\u73b0\u4e86\uff0c\u60df\u4e00\u4ea7\u751f\u53d8\u5316\u7684\u53ea\u6709lang\u53c2\u6570\u7684\u503c\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u8fd9\u4e2a\u503c\u662f\u7531\u7528\u6237\u6240\u63a7\u5236\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u8be5\u503c\u8bbe\u7f6e\u4e3a\u4efb\u4f55\u60f3\u8981\u7684\u5185\u5bb9\u3002\u6b63\u662f\u8fd9\u79cd\u7279\u6027\u5bfc\u81f4\u4e86HTTP\u54cd\u5e94\u62c6\u5206\u653b\u51fb\u7684\u53d1\u751f\u3002<\/p>\n
<\/p>\n
\u6b64\u65f6\u6211\u4eec\u4e0d\u518d\u628a\u53c2\u6570\u503c\u8bbe\u5b9a\u4e3a”german”\uff0c\u800c\u662f\u6309\u7167\u4e0b\u5217\u5185\u5bb9\u8fdb\u884c\u8bbe\u5b9a\uff1a<\/p>\n
<\/p>\n
a) The value ‘german’<\/p>\n
b) CR\/LF – %0d%0a<\/p>\n
c) A response with Content Length 0 [\u8fd9\u91cc\u4e4b\u6240\u4ee5\u8bbe\u957f\u5ea6\u4e3a0\uff0c\u662f\u56e0\u4e3a\u8fd9\u4e00\u6bb5\u5176\u5b9e\u65e0\u5173\u7d27\u8981]<\/p>\n
d) CR\/LF – %0d%0a<\/p>\n
e) A response which contains malicious content [\u4e3e\u4f8b\u6765\u8bf4\uff0c\u53ef\u4ee5\u8bbe\u5b9aJavaScript\u4f1a\u5728\u9875\u9762\u88ab\u8bbf\u95ee\u65f6\u81ea\u52a8\u4e0b\u8f7d\u6076\u610f\u8f6f\u4ef6]<\/p>\n
\u5148\u6765\u770b\u770bc)\u7684\u5185\u5bb9–\u8fd9\u4e5f\u662f\u9996\u4e2a\u54cd\u5e94\u3002HTTP\u534f\u8bae\u7684\u5de5\u4f5c\u65b9\u5f0f\u662f\u4e00\u4e2a\u8bf7\u6c42\u5bf9\u5e94\u4e00\u4e2a\u54cd\u5e94\uff0c\u56e0\u6b64\u9488\u5bf9\u8be5\u8bf7\u6c42\u2014\u2014\u5373http:\/\/www.abc.com\/index.php?lang=german\u7684\u54cd\u5e94\u662f\u7ecf\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684\u3002\u5176\u5b9e\u6211\u4eec\u5e76\u4e0d\u5173\u5fc3\u8fd9\u4e2a\u54cd\u5e94\u672c\u8eab\u53ca\u5176\u5185\u5bb9\uff0c\u6211\u4eec\u60f3\u8981\u7684\u53ea\u662f\u5c06Content-Length: 0\u8bbe\u4e3a\u5176\u54cd\u5e94\u5934\u3002<\/p>\n
<\/p>\n
CR\/LF\uff08\u5373\u56de\u8f66\u6362\u884c\u7b26\uff09\u662f\u54cd\u5e94\u4e4b\u95f4\u7684\u5206\u754c\u7b26\u3002\u6240\u4ee5\u53ea\u8981\u6211\u4eec\u5982d)\u4e2d\u6240\u793a\u52a0\u5165CR\/LF\u5185\u5bb9\uff0c\u90a3\u4e48\u7b2c\u4e8c\u8f6e\u54cd\u5e94\u5373\u4f1a\u542f\u52a8\uff0c\u4e14\u6839\u636eHTTP\u534f\u8bae\u7684\u89c4\u5b9a\u8fd9\u662f\u5b8c\u5168\u6b63\u5e38\u7684\u3002\u5728\u65b0\u4e00\u8f6e\u54cd\u5e94\u4e2d\u6211\u4eec\u53ef\u4ee5\u6dfb\u52a0\u5927\u91cf\u4fe1\u606f\u3002\u4e3e\u4f8b\u6765\u8bf4\uff0c\u5982\u679c\u6211\u4eec\u6253\u7b97\u663e\u793a\u4e00\u6761”Hello, you have been phished”\uff08\u610f\u4e3a’\u4f60\u597d\uff0c\u4f60\u5df2\u7136\u4e2d\u62db\u4e86’\uff09\u7684\u6d88\u606f\uff0c\u6b64\u65f6\u9762\u524d\u5df2\u7ecf\u5b8c\u5168\u6ca1\u6709\u4efb\u4f55\u963b\u788d\u4e86\u3002\u53ea\u9700\u8f93\u5165\u5982\u4e0b\u6240\u793a\u7684\u5185\u5bb9\uff0c\u5373\u53ef\u8f7b\u677e\u5b9e\u73b0\uff1a<\/p>\n
<\/p>\n
HTTP\/1.1 200 OK<\/p>\n
Content-Type: text\/html<\/p>\n
Content-Length: 41<\/p>\n
Hello, you have been phished<\/p>\n
\u8fd8\u662f\u89c9\u5f97\u6709\u70b9\u8ff7\u7cca\uff1f\u8ba9\u6211\u4eec\u518d\u603b\u7ed3\u4e00\u6b21\u3002\u653b\u51fb\u8005\u63a7\u5236\u53c2\u6570\u5e76\u53d1\u9001\u4e00\u4e2a\u5c06\u4ea7\u751f\u4e24\u6b21\u54cd\u5e94\u7684\u8bf7\u6c42\uff1b\u8fd9\u4e24\u6b21\u54cd\u5e94\u90fd\u7531\u653b\u51fb\u8005\u7ec4\u7ec7\uff0c\u5e76\u4ee5\u670d\u52a1\u5668\u4e3a\u76ee\u6807\u3002\u9996\u4e2a\u54cd\u5e94\u65e8\u5728\u56de\u5e94\u5c06\u9875\u9762\u8f6c\u5316\u4e3a\u5fb7\u8bed\u7684\u8bf7\u6c42\uff0c\u800c\u7b2c\u4e8c\u4e2a\u54cd\u5e94\uff08\u5230\u76ee\u524d\u4e3a\u6b62\uff09\u8fd8\u672a\u7ecf\u89e3\u91ca\uff0c\u5b83\u53ea\u662f\u6682\u65f6\u6302\u8d77–\u56e0\u4e3a\u8be5\u54cd\u5e94\u8fd8\u6ca1\u6709\u80fd\u591f\u6620\u5c04\u7684\u5bf9\u5e94\u8bf7\u6c42\u3002\u8bf7\u8bb0\u4f4f\uff0cHTTP\u9700\u8981\u54cd\u5e94\uff08\u65e0\u8bba\u5185\u5bb9\u4ee3\u7801\u662f\u4ec0\u4e48\uff09\uff0c\u4f46\u5b83\u9700\u8981\u7684\u662f\u4e00\u4e2a\u80fd\u5bf9\u5e94\u6240\u6709\u8bf7\u6c42\u7684\u54cd\u5e94\u3002\u56e0\u6b64\u6302\u8d77\u4e2d\u7684HTTP\u54cd\u5e94\u662f\u65e0\u6cd5\u5de5\u4f5c\u7684\u3002<\/p>\n
<\/p>\n
\u73b0\u5728\u8bf7\u4ed4\u7ec6\u9605\u8bfb\u2026\u56e0\u4e3a\u8fd9\u90e8\u5206\u6b63\u662f\u5927\u591a\u6570\u4eba\uff08\u8fde\u6211\u81ea\u5df1\u5728\u5f88\u957f\u4e00\u6bb5\u65f6\u95f4\u5185\u4e5f\u662f\u5982\u6b64\uff09\u6ca1\u6709\u641e\u6e05\u695a\u7684\u5185\u5bb9\u3002\u4e3a\u4e86\u5904\u7406\u7b2c\u4e8c\u4e2a\u6302\u8d77\u4e2d\u7684\u54cd\u5e94\uff0c\u653b\u51fb\u8005\u4f1a\u8fc5\u901f\u5bf9\u670d\u52a1\u5668\u4e0a\u7684\u9875\u9762\u53d1\u9001\u4e00\u6761\u6709\u6548\u7684\u516c\u5f00\u8bbf\u95ee\uff08\u901a\u5e38\u662f\u8fd9\u6837\uff09\u8bf7\u6c42\uff0c\u6bd4\u5982\u8bf4branches.html\u3002<\/p>\n
<\/p>\n
\u8fd9\u91cc\u5047\u8bbe\u4ed6\u53d1\u9001\u7684\u8bf7\u6c42\u4e3a\uff1a<\/p>\n
<\/p>\n
GET \/branches.html HTTP\/1.1<\/p>\n
Host: www.abc.com<\/p>\n
\u5c31\u5728\u53d1\u51fa\u9996\u4e2a\u5305\u542b”\u53ef\u5b8c\u5168\u81ea\u5b9a\u5185\u5bb9”\u53c2\u6570\u7684\u8bf7\u6c42\u4e4b\u540e\uff0c\u4ed6\u4f1a\u65cb\u5373\u53d1\u51fa\u4e0a\u8ff0\u7b2c\u4e8c\u6761\u8bf7\u6c42\uff0c\u800c\u8fd9\u4e5f\u6b63\u662f”Hello, you have been phished”\u5b57\u6bb5\u7684\u6620\u5c04\u5bf9\u8c61\u3002\u4e24\u6761\u8bf7\u6c42\u5bf9\u5e94\u4e24\u6b21\u54cd\u5e94\uff0c\u5927\u5bb6\u660e\u767d\u4e86\u5417\uff1f<\/p>\n
<\/p>\n
\u54c8\u54c8\uff0c\u6050\u6015\u5404\u4f4d\u8fd8\u662f\u6709\u4e9b\u56f0\u60d1\u3002\u5c3d\u7ba1\u5927\u5bb6\u53ef\u80fd\u5df2\u7ecf\u4e86\u89e3\u6574\u4e2a\u6620\u5c04\u7684\u53d1\u751f\u8fc7\u7a0b\uff0c\u4f46\u4ecd\u7136\u6ca1\u95f9\u660e\u767d\u8fd9\u79cd\u653b\u51fb\u662f\u5982\u4f55\u5f71\u54cd\u5176\u4ed6\u4eba\u7684\u3002\u6bd5\u7adf\uff0c\u653b\u51fb\u8005\u7684\u8fd9\u4e00\u5207\u884c\u52a8\u90fd\u53d1\u751f\u5728\u4ed6\u81ea\u5df1\u7684\u8ba1\u7b97\u673a\u4e0a\uff0c\u6240\u4fee\u6539\u7684\u8bf7\u6c42\u4e5f\u53ea\u9650\u4e8e\u4ed6\u4e2a\u4eba\u2026\u4e5f\u5c31\u662f\u8bf4\uff0c\u4f1a\u53d7\u5f71\u54cd\u7684\u53ea\u6709\u4ed6\u81ea\u5df1\u3002\u8bf4\u5b9e\u8bdd\uff0c\u4e3a\u4ec0\u4e48\u653b\u51fb\u8005\u8981\u5bf9\u81ea\u8eab\u5c55\u5f00\u653b\u52bf\uff1f\u8fd9\u4f3c\u4e4e\u6beb\u65e0\u9053\u7406\u53ef\u8a00\u554a\u3002\u4e0d\u8fc7\u6211\u8981\u6307\u51fa\u7684\u662f\uff0c\u8fd9\u5bf9\u4f4d\u4e8e\u4e2d\u95f4\u5e27\u53ca\u7f13\u5b58\u4e2d\u7684\u4ee3\u7406\u670d\u52a1\u5668\u6216\u8005\u67d0\u4e9b\u8bbe\u5907\u800c\u8a00\uff0c\u53ef\u4ee5\u8bf4\u662f\u63a5\u7eb3\u8bf7\u6c42\u53ca\u54cd\u5e94\u7684\u5173\u952e\u6027\u4e00\u73af\u3002<\/p>\n
<\/p>\n
\u653b\u51fb\u8005\u5fc5\u987b\u8eb2\u5728\u4ee3\u7406\u670d\u52a1\u5668\u4e4b\u540e\uff0c\u5e76\u501f\u52a9\u4ee3\u7406\u5c06\u4ed6\u7684\u8bf7\u6c42\u53d1\u9001\u5230\u4e92\u8054\u7f51\u4e0a\u7684\u76ee\u6807\u670d\u52a1\u5668\u5904\u3002\u5982\u679c\u4ed6\u60f3\u611f\u67d3\u5176\u5b83\u7528\u6237\uff0c\u8fd9\u4e9b\u88ab\u5bb3\u7528\u6237\u4e5f\u5fc5\u987b\u5904\u4e8e\u540c\u6837\u7684\u4ee3\u7406\u670d\u52a1\u5668\u4e4b\u540e\u3002\u56e0\u6b64\uff0c\u8ba9\u6211\u4eec\u518d\u6765\u603b\u7ed3\u4e00\u6b21\uff08\u8bf7\u4fdd\u6301\u8010\u6027\u2026\uff09<\/p>\n
<\/p>\n
a)\u653b\u51fb\u8005\u53d1\u9001\u4e00\u6761\u5305\u542b\u4e00\u4e2a\u503c\u53ca\u4e24\u6b21\u54cd\u5e94\u7684\u8bf7\u6c42\uff0c\u4f7f\u7528%0d%0a\u8fdb\u884c\u5206\u9694\u3002\u5728\u672c\u6587\u7684\u4f8b\u5b50\u4e2d\uff0c\u8bf7\u6c42\u7684\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
<\/p>\n
http:\/\/www.abc.com\/index.php?lang=german%0d%0aContent- Length:%200%0d%0aHTTP\/1.1%20200%20OK%0d%0aContent-Type:%20text\/html%0d%0aContent-Length:%2041%0d%0aHello, you have been phished<\/p>\n
b)\u8be5\u8bf7\u6c42\u7684\u53d1\u9001\u76ee\u7684\u5730\u4e3awww.abc.com\u2026\u4e0d\u8fc7\u91cd\u8981\u7684\u662f\uff0c\u5b83\u662f\u901a\u8fc7\u4e2d\u95f4\u4ee3\u7406\u670d\u52a1\u5668\u8fdb\u884c\u4f20\u9012\u7684\u3002\u56e0\u6b64\u73b0\u5728\u5728\u4ee3\u7406\u670d\u52a1\u5668\u4e0a\uff0c\u7b2c\u4e00\u4e2a\u8bf7\u6c42\u88ab\u6620\u5c04\u5728\u7b2c\u4e00\u6b21\u54cd\u5e94\u4e0a\uff0c\u800c\u7b2c\u4e8c\u6b21\u54cd\u5e94\u5219\u7531\u4e8e\u6ca1\u6709\u80fd\u591f\u5339\u914d\u7684\u8bf7\u6c42\u800c\u5904\u4e8e\u6302\u8d77\u72b6\u6001\u3002<\/p>\n
<\/p>\n
c)\u5728\u9996\u4e2a\u8bf7\u6c42\u53d1\u51fa\u540e\uff0c\u653b\u51fb\u8005\u4f1a\u7acb\u5373\u5411\u76ee\u6807\u7f51\u7ad9\uff08\u540c\u6837\u901a\u8fc7\u4ee3\u7406\u670d\u52a1\u5668\uff09\u53d1\u51fa\u65b0\u8bf7\u6c42\uff08\u7b2c\u4e8c\u4e2a\u8bf7\u6c42\uff09\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
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GET \/branches.html HTTP\/1.1<\/p>\n
Host: www.abc.com<\/p>\n
d)\u4ee3\u7406\u670d\u52a1\u5668\u4f1a\u5728\u6536\u5230branches.html\u540e\uff0c\u7b2c\u4e00\u65f6\u95f4\u5c06\u5176\u6620\u5c04\u81f3\u7b2c\u4e8c\u6b21\u54cd\u5e94\u4e2d\uff08\u5373’You have been phished ‘\uff09\u3002\u56e0\u6b64\u63a5\u4e0b\u6765\u53d1\u5f80branches.html\u7684\u8bf7\u6c42\u5c06\u4e0d\u518d\u663e\u793a\u94f6\u884c\u7684\u5206\u652f\u673a\u6784\u540d\u5355\uff0c\u800c\u662f\u6307\u5411\u6076\u610f\u7f51\u9875\u3002\u6ca1\u9519\uff0c\u5bf9\u4e8e\u6bcf\u4f4d\u8bbf\u95ee\u8005\u6bd5\u7adf\u662f\u5982\u6b64\uff0c\u800c\u4e0d\u4ec5\u4ec5\u9488\u5bf9\u653b\u51fb\u8005\u3002\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\uff1f\u56e0\u4e3a\u8fd9\u6b63\u662f\u7f13\u5b58\u4ee3\u7406\u670d\u52a1\u5668\u7684\u5904\u7406\u65b9\u5f0f\u2026\u5e38\u53d1\u8bf7\u6c42\u7f13\u5b58\u54cd\u5e94\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u67d0\u4e2a\u53d1\u5f80branches.html\u7684\u8bf7\u6c42\u59cb\u7ec8\u4ea7\u751f\u540c\u4e00\u4efd\u5173\u4e8e\u94f6\u884c\u652f\u884c\u4fe1\u606f\u7684\u9759\u6001\u5217\u8868\uff0c\u90a3\u4e48\u4ee3\u7406\u670d\u52a1\u5668\u51e0\u4e4e\u80af\u5b9a\u4f1a\u8c03\u7528\u7f13\u5b58\u5bf9\u8be5\u8bf7\u6c42\u8fdb\u884c\u54cd\u5e94\u3002\u6362\u8a00\u4e4b\uff0c\u4e0b\u4e00\u6b21\u6307\u5411branches.html\u7684\u8bf7\u6c42\u5c06\u81ea\u52a8\u8fd4\u56de\u6765\u81ea\u7f13\u5b58\u7684\u54cd\u5e94\u3002\u800c\u5728\u653b\u51fb\u8005\u7684\u5b89\u6392\u4e0b\uff0c\u4ee3\u7406\u670d\u52a1\u5668\u7684\u7f13\u5b58\u5185\u5bb9\u906d\u53d7\u611f\u67d3\uff0c\u5e76\u88ab\u8feb\u8fd4\u56de\u6076\u610f\u54cd\u5e94\u800c\u975e\u539f\u672c\u7684\u9759\u6001\u5217\u8868\u2026\u2026\u8fd9\u79cd\u72b6\u51b5\u5c06\u6301\u7eed\u4e0b\u53bb\u76f4\u5230\u7f13\u5b58\u8fc7\u671f\u3002<\/p>\n
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\u901a\u8fc7\u54cd\u5e94\u62c6\u5206\u5b9e\u73b0\u8de8\u7ad9\u70b9\u811a\u672c<\/p>\n
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<\/p>\n
http:\/\/www.abc.com\/index.php?lang=german%0d%0aContent- Length:%200%0d%0aHTTP\/1.1%20200%20OK%0d%0aContent-Type:%20text\/html%0d%0aContent- Length:%20%0d%0aalert(‘\u5728\u4f60\u7684\u8ba1\u7b97\u673a\u4e0a\u8fd0\u884cJavaScript’)<\/p>\n
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\u5728CSRF\u653b\u51fb\u5f53\u4e2d\uff0c\u653b\u51fb\u8005\u603b\u4f1a\u4f7f\u51fa\u67d0\u79cd\u82b1\u62db\u8bf1\u5bfc\u7528\u6237\u70b9\u51fb\u94fe\u63a5\uff0c\u6216\u662f\u91c7\u53d6\u793e\u4ea4\u89d2\u5ea6\u7684\u5fc3\u7406\u6218\u672f\u3001\u6216\u662f\u8ba9\u7528\u6237\u8bbf\u95ee\u67d0\u4e2a\u5904\u4e8e\u653b\u51fb\u8005\u63a7\u5236\u4e4b\u4e0b\u7684\u9875\u9762\uff1b\u603b\u4e4b\u5c3d\u7ba1\u7406\u8bba\u4e0a\u7528\u6237\u662f\u81ea\u4e3b\u53d1\u51fa\u7684\u8bf7\u6c42\uff0c\u4f46\u5b9e\u9645\u4e0a\u540e\u53f0\u5230\u5e95\u6267\u884c\u4e86\u4ec0\u4e48\u5185\u5bb9\u53d7\u5bb3\u8005\u5e76\u4e0d\u77e5\u60c5\u3002<\/p>\n
<\/p>\n
\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u56de\u5230\u54cd\u5e94\u62c6\u5206\u8fd9\u4e00\u8bdd\u9898\u3002\u5927\u5bb6\u5e94\u8be5\u8fd8\u8bb0\u5f97\u653b\u51fb\u8005\u501f\u52a9\u54cd\u5e94\u62c6\u5206\u7279\u6027\u611f\u67d3branches.html\u9875\u9762\uff0c\u5e76\u5411\u5176\u4e2d\u6ce8\u5165JavaScript\u6076\u610f\u5185\u5bb9\u4ee5\u5c1d\u8bd5\u5728\u7528\u6237\u7684\u6d4f\u89c8\u5668\u4e0a\u8fd0\u884c\u811a\u672c\u7684\u505a\u6cd5\u5427\u3002\u800c\u5728CSRF\u653b\u51fb\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u786e\u4fdd\u884c\u4e3a\uff08\u4f8b\u5982\u524d\u9762\u63d0\u5230\u7684\u8f6c\u8d26\u64cd\u4f5cURL\uff09\u5728\u7528\u6237\u8bbf\u95ee\u88ab\u611f\u67d3\u9875\u9762\u65f6\u80fd\u591f\u81ea\u52a8\u6267\u884c\u3002\u6362\u53e5\u8bdd\u8bf4\uff0cbranches.html\u4e2d\u4f1a\u5305\u542b\u4e00\u4e2a\u5c0f\u578b\u955c\u50cf\uff0c\u5e76\u968f\u540c\u8be5\u9875\u9762\u4e00\u540c\u88ab\u8f7d\u5165\u3002\u8be5\u955c\u50cf\u7684<IMG SRC>\u6807\u7b7e\u5c06\u5411www.abc.com\u7f51\u7ad9\u7684\u670d\u52a1\u5668\u53d1\u9001\u5185\u5bb9\u4e3a\/transfer\/php?acc1=1000&acc2=2000&amt=900\u7684\u8bf7\u6c42\u3002<\/p>\n
<\/p>\n
\u56e0\u6b64\u5728\u6267\u884c\u54cd\u5e94\u62c6\u5206\u653b\u51fb\u65f6\uff0c\u6574\u4e2a\u6076\u610fURL\u7684\u5185\u5bb9\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
<\/p>\n
http:\/\/www.abc.com\/index.php?lang=german%0d%0aContent- Length:%200%0d%0aHTTP\/1.1%20200%20OK%0d%0aContent-Type:%20text\/html%0d%0aContent- Length:%20%0d%0a< \/ body>< \/ html><\/p>\n
\u6700\u7ec8\u7684\u7ed3\u679c\u662f\uff0c\u6bcf\u5f53\u7528\u6237\u901a\u8fc7\u4ee3\u7406\u8bbf\u95ee\u53d7\u611f\u67d3\u7684\u9875\u9762\uff08\u5373branches.html\uff09\uff0c\u4e14\u5728\u53e6\u4e00\u4e2a\u6d4f\u89c8\u5668\u9009\u9879\u5361\u4e2d\u767b\u5f55\u4e86www.abc.com\u7ad9\u70b9\uff0c\u90a3\u4e48\u540e\u53f0\u5373\u4f1a\u987a\u5229\u5730\u5c06\u6b3e\u9879\u8f6c\u6c47\u81f3\u653b\u51fb\u8005\u6307\u5b9a\u7684\u8d26\u6237\u4e2d\u3002<\/p>\n
\u793a\u4f8b\u4ee3\u7801:<\/p>\n
<\/p>\n
\u73b0\u5728\u8ba9\u6211\u4eec\u5feb\u901f\u6d4f\u89c8\u4e00\u904dPHP\u4e2d\u90a3\u4e9b\u5b58\u5728\u54cd\u5e94\u62c6\u5206\u6f0f\u6d1e\u7684\u4ee3\u7801\u7c7b\u578b\u3002\u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\uff0c\u6211\u4eec\u4ee5\u4e00\u4e2a\u5c0f\u578bHTML\u6587\u4ef6\u4e3a\u4f8b\uff08\u540d\u79f0\u4e3arespsplit1.html\uff09\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u5141\u8bb8\u7528\u6237\u9009\u62e9\u8bed\u8a00\u79cd\u7c7b\u7684\u4e0b\u62c9\u83dc\u5355\u3002\u5177\u4f53\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
<\/p>\n
<HTML><\/p>\n
<BODY><\/p>\n
<FORM NAME=”form” action=”respsplit1.php” method=”GET”><\/p>\n
<select name=”lang”><\/p>\n
<option value=”EN”>English<\/option><\/p>\n
<option value=”GER”>German<\/option><\/p>\n
<\/select><\/p>\n
<INPUT TYPE=”submit” name=”Submit” value=Submit><\/INPUT><\/p>\n
<\/FORM><\/p>\n
<\/BODY><\/p>\n
<\/HTML><\/p>\n
\u9009\u62e9\u60f3\u8981\u7684\u8bed\u8a00\u7c7b\u578b\u540e\uff0c\u5927\u5bb6\u5f53\u7136\u4f1a\u70b9\u51fb\u63d0\u4ea4\u6309\u94ae\uff0c\u800c\u8fd9\u4e00\u8f93\u5165\u884c\u4e3a\u5c06\u88ab\u63d0\u4ea4\u81f3\u540d\u4e3arespsplit1.php\u7684PHP\u6587\u4ef6\u5904\u3002\u4e0a\u8ff0\u6240\u6709\u4ee3\u7801\u7684\u529f\u80fd\u662f\u622a\u83b7\u6211\u4eec\u7684\u8f93\u5165\u5185\u5bb9\uff0c\u5e76\u5229\u7528\u5176\u5efa\u7acb\u4e00\u4e2a\u7528\u4e8e\u91cd\u65b0\u6307\u5411\u7684URL\uff0c\u518d\u5c06\u5176\u53d1\u9001\u81f3302\u91cd\u65b0\u6307\u5411\u54cd\u5e94\u5904\u3002Respsplit1.php\u6587\u4ef6\u7684\u5185\u5bb9\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
<\/p>\n
<?php<\/p>\n
$lang = $_GET[‘lang’]<\/p>\n
header(“Location: http:\/\/localhost\/respsplit2.php?lang=$lang”);<\/p>\n
?><\/p>\n
\u5728\u6d4f\u89c8\u5668\u4e2d\u6253\u5f00\u8be5HTML\u6587\u4ef6\u5e76\u5c06\u5176\u7f6e\u4e8eBurp\u6216\u662f\u4efb\u4f55\u5176\u5b83\u7c7b\u578b\u7684\u4ee3\u7406\u7f16\u8f91\u5668\u4e2d\u3002\u8fd9\u65f6\u8bf7\u7559\u610f\u6211\u4eec\u5728\u5934\u4e00\u4e2a\u9875\u9762\u70b9\u51fb\u63d0\u4ea4\u540e\u6240\u4ea7\u751f\u7684\u54cd\u5e94\u3002\u5927\u5bb6\u4f1a\u6e05\u695a\u5730\u53d1\u73b0\uff0c\u81ea\u5df1\u5728\u4e0b\u62c9\u83dc\u5355\u4e2d\u9009\u62e9\u7684\u9879\u76ee\u5b9e\u9645\u4e0a\u662f\u672c\u673a302\u54cd\u5e94\u4e2d\u7684\u54cd\u5e94\u5934\u3002\u56e0\u6b64\u5982\u679c\u5404\u4f4d\u60f3\u5bf9\u6b64\u8fdb\u884c\u4fee\u6539\uff0c\u90a3\u5c31\u5fc5\u987b\u5f97\u5728\u8bf7\u6c42\u5230\u8fbe\u670d\u52a1\u5668\u7aef\u4e4b\u524d\uff0c\u5bf9lang\u53c2\u6570\u7684\u503c\u5229\u7528\u6076\u610f\u5b57\u7b26\u4e32\u8fdb\u884c\u7f16\u8f91\uff08\u4e5f\u5c31\u662f\u8fbe\u5230\u6211\u4eec\u524d\u9762\u6240\u8bf4\u7684\u4e00\u9879\u8bf7\u6c42\u4e24\u6b21\u54cd\u5e94\uff09\u3002<\/p>\n
<\/p>\n
respsplit2.php\u6240\u505a\u7684\u4ec5\u4ec5\u662f\u5c06\u5927\u5bb6\u6240\u9009\u62e9\u7684\u8bed\u8a00\u79cd\u7c7b\u663e\u793a\u51fa\u6765\uff0c\u9664\u6b64\u65e0\u5b83\u3002<\/p>\n
<\/p>\n
<?php<\/p>\n
$a=$_GET[‘lang’];<\/p>\n
if (strcmp($a,’EN’) == 0)<\/p>\n
echo “Language selected is English”;<\/p>\n
elseif (strcmp($a,’GER’) == 0)<\/p>\n
echo “Language selected is German”;<\/p>\n
else<\/p>\n
echo “No valid language selected “;<\/p>\n
?><\/p>\n
\u73b0\u5728\u5f53\u6211\u6253\u7b97\u8fdb\u884c\u4e0a\u8bd5\u6d4b\u8bd5\u65f6\uff0c\u6211\u81ea\u5df1\u7684PHP\u6846\u67b6\u4f1a\u4ece\u54cd\u5e94\u5934\u4e2d\u628a%0d%0a\u5b57\u7b26\u4e32\u9664\u53bb\uff0c\u8fd9\u79cd\u9ed8\u8ba4\u8bbe\u7f6e\u5b9e\u9645\u4e0a\u8d77\u5230\u4e86\u4fdd\u62a4\u4f5c\u7528\u3002\u4e0d\u8fc7\u5982\u679c\u5927\u5bb6\u6240\u4f7f\u7528\u7684\u662f\u7248\u672c\u8f83\u8001\u7684\u6846\u67b6\uff0c\u90a3\u4e48\u9ed8\u8ba4\u8bbe\u7f6e\u5c06\u4e0d\u4f1a\u5b9e\u65bd\u4fdd\u62a4\uff0c\u8fdb\u800c\u5bfc\u81f4\u4ee3\u7801\u6781\u6613\u5728CRLF\u5904\u53d1\u751f\u95ee\u9898\u3002\u8fd9\u91cc\u6240\u63d0\u5230\u7684\u8fc7\u6ee4\u529f\u80fd\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n
<\/p>\n
<?php<\/p>\n
$pattern1 = “\/\\%0d\/”;<\/p>\n
$pattern2 = “\/\\%0a\/”;<\/p>\n
$lang = $_GET[‘lang’];<\/p>\n
$r = preg_match($pattern1 , $lang);<\/p>\n
$s = preg_match($pattern2 , $lang);<\/p>\n
if (($r > 0) || ($s > 0)){<\/p>\n
echo ‘Carriage Return found in user input’;<\/p>\n
echo “<BR>”;<\/p>\n
}<\/p>\n
else {<\/p>\n
header(“Location: http:\/\/localhost\/respsplit2.php?lang=$lang”);<\/p>\n
}<\/p>\n
?><\/p>\n
\u6211\u4eec\u53ef\u4ee5\u81ea\u4e3b\u7f16\u5199\u66f4\u4e3a\u9ad8\u6548\u7684\u8fc7\u6ee4\u5668\uff0c\u4f8b\u5982\u5c06\u5185\u5bb9\u53ea\u5305\u542b\u5b57\u6bcd\u53ca\u6570\u5b57\u7684\u9879\u76ee\u5217\u5165\u767d\u540d\u5355\uff0c\u5e76\u76f4\u63a5\u5c4f\u853d\u6389\u5176\u5b83\u4e00\u5207\u7c7b\u578b\uff1b\u4f46\u8fd9\u4ec5\u4ec5\u662f\u9632\u5fa1\u6027\u4ee3\u7801\u7684\u4e00\u79cd\u4f7f\u7528\u8303\u4f8b\u3002\u5982\u679c\u5927\u5bb6\u5fd8\u8bb0\u7f16\u5199\u8fd9\u7c7b\u8fc7\u6ee4\u5668\uff0c\u90a3\u4e48\u5c31\u7b49\u4e8e\u5c06\u81ea\u5df1\u7684\u547d\u8fd0\u5b8c\u5168\u4ea4\u4ed8\u7ed9\u6240\u4f7f\u7528\u7684\u6846\u67b6\u672c\u8eab\u3002\u5982\u679c\u5404\u4f4d\u4e0e\u6211\u4f7f\u7528\u7684\u6846\u67b6\u76f8\u4f3c\uff08Ubuntu 10.04\u5185\u7684APT\u5e93\uff09\u8fd8\u597d\uff0c\u56e0\u4e3a\u5176\u4e2d\u5185\u7f6e\u4e86\u4fdd\u62a4\u673a\u5236\u2026\u5426\u5219\u5c31\u7b49\u7740\u4e3a\u6b64\u800c\u4ed8\u51fa\u60e8\u91cd\u4ee3\u4ef7\u5427\u3002<\/p>\n
<\/p>\n
\u76ee\u524d\u5df2\u7ecf\u88ab\u53d1\u73b0\u4e86\u4e3a\u6570\u4e0d\u5c11\u7684\u54cd\u5e94\u62c6\u5206\u7c7b\u6f0f\u6d1e\u3002\u6211\u5728\u6587\u672b\u7684\u53c2\u8003\u94fe\u63a5\u4e2d\u63d0\u4f9b\u4e86\u8be6\u7ec6\u7684\u6e05\u5355<\/p>\n
<\/p>\n
\u5e94\u5bf9\u63aa\u65bd:<\/p>\n
<\/p>\n
\u25c6\u54cd\u5e94\u62c6\u5206\u653b\u51fb\uff1a\u4f7f\u7528\u670d\u52a1\u5668\u7aef\u9a8c\u8bc1\u673a\u5236\uff0c\u5e76\u7981\u6b62\u5168\u90e8\u7528\u6237\u5728\u4efb\u4f55\u4e0e\u54cd\u5e94\u5934\u6709\u5173\u7684\u8f93\u5165\u8bf7\u6c42\u4e2d\u4f7f\u7528\u56de\u8f66\u6362\u884c\u7b26\uff08\u5373CRLF\uff09\u3002<\/p>\n
<\/p>\n
\u25c6XSS\u653b\u51fb\uff1a\u5f15\u5165\u767d\u540d\u5355\u3001\u9ed1\u540d\u5355\u8fc7\u6ee4\u673a\u5236\uff08\u8f93\u5165\u9a8c\u8bc1\uff09\u4ee5\u53caEscape HTML\uff08\u8f93\u51fa\u9a8c\u8bc1\uff09\u3002<\/p>\n
<\/p>\n
\u25c6CSRF\u653b\u51fb\uff1a\u4f7f\u7528AntiCsrf\u8bed\u8a00\u7b26\u53f7\uff0c\u8fd9\u6837\u653b\u51fb\u8005\u5c31\u65e0\u6cd5\u51c6\u786e\u9884\u6d4b\u76ee\u6807\u7ed3\u6784\uff0c\u81ea\u7136\u4e5f\u4e0d\u80fd\u5bf9\u5176\u52a0\u4ee5\u4f2a\u9020\u4e86\u3002<\/p>\n
<\/p>\n
\u7ed3\u8bba:<\/p>\n
<\/p>\n
\u54cd\u5e94\u62c6\u5206\u5f0f\u653b\u51fb\u53ea\u80fd\u5728\u591a\u4e2a\u7528\u6237\u4f7f\u7528\u76f8\u540c\u4ee3\u7406\u670d\u52a1\u5668\u8fde\u63a5\u4e0d\u540c\u7f51\u7ad9\u65f6\u594f\u6548\u3002\u4ee3\u7406\u670d\u52a1\u5668\u7684\u7f13\u5b58\u4e00\u65e6\u53d7\u5230\u611f\u67d3\uff0c\u7528\u6237\u5c31\u4f1a\u5728\u4ece\u4ee3\u7406\u670d\u52a1\u5668\u7f13\u5b58\u4e2d\u8bfb\u53d6\u8be5\u9875\u9762\u65f6\u906d\u5230\u653b\u51fb\u3002\u4e0d\u8fc7\u8bf7\u6ce8\u610f\uff0c\u5e76\u975e\u6240\u6709\u4ee3\u7406\u670d\u52a1\u5668\u90fd\u5728\u54cd\u5e94\u62c6\u5206\u65b9\u9762\u5b58\u5728\u6f0f\u6d1e\uff0c\u867d\u7136\u8fd9\u7b97\u662f\u53e5\u9898\u5916\u8bdd\u3002\u5982\u679c\u5927\u5bb6\u6709\u5174\u8da3\u8fdb\u4e00\u6b65\u4e86\u89e3\u8fd9\u79cd\u653b\u51fb\uff0c\u6211\u5f3a\u70c8\u5efa\u8bae\u5927\u5bb6\u9605\u8bfb\u7531Amit Klein\u64b0\u5199\u7684\u7cbe\u5f69\u8bba\u6587\uff08\u8be6\u89c1\u53c2\u8003\u6587\u732e1\uff09\u3002<\/p>\n
<\/p>\n
\u53c2\u8003\u6587\u732e:<\/p>\n
<\/p>\n
\u25c6\u54cd\u5e94\u62c6\u5206\u653b\u51fb- http:\/\/packetstormsecurity.org\/papers\/general\/whitepaper_httpresponse.pdf<\/p>\n
<\/p>\n
\u25c6XSS\u653b\u51fb – http:\/\/www.technicalinfo.net\/papers\/CSS.html<\/p>\n
<\/p>\n
\u25c6XSS\u653b\u51fb\u5e94\u5bf9\u63aa\u65bd-https:\/\/www.owasp.org\/index.php\/XSS_%28Cross_Site_Scripting%29_Prevention_Cheat_Sheet<\/p>\n
<\/p>\n
\u25c6CSRF\u653b\u51fb – https:\/\/www.owasp.org\/index.php\/Cross-Site_Request_Forgery_%28CSRF%29<\/p>\n
<\/p>\n
\u25c6CSRF\u653b\u51fb\u5e94\u5bf9\u63aa\u65bd- https:\/\/www.owasp.org\/index.php\/Cross-Site_Request_Forgery_%28CSRF%29_Prevention_Cheat_Sheet<\/p>\n
<\/p>\n
\u25c6B\u6d4f\u89c8\u5668\u5f00\u53d1\u6846\u67b6 – http:\/\/beefproject.com\/<\/p>\n
<\/p>\n
\u25c6\u5b66\u4e60PHP\uff08\u6559\u7a0b\uff09- http:\/\/www.w3schools.com\/php\/<\/p>\n
<\/p>\n
\u25c6PHP\u51fd\u6570 – http:\/\/php.net\/quickref.php<\/p>\n
<\/p>\n
\u25c6\u5df2\u66dd\u5149\u7684\u54cd\u5e94\u62c6\u5206\u6f0f\u6d1e\u6c47\u603b\u6e05\u5355- http:\/\/cwe.mitre.org\/data\/definitions\/113.html<\/p>\n
<\/p>\n
\u539f\u6587\u94fe\u63a5\uff1ahttp:\/\/resources.infosecinstitute.com\/http-response-splitting-attack\/<\/p>\n","protected":false},"excerpt":{"rendered":"
\u301051CTO.com \u72ec\u5bb6\u7279\u7a3f\u3011\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u4f55\u8c13HTTP\u54cd\u5e94\u62c6\u5206\u4ee5\u53ca\u653b\u51fb …<\/p>\n