{"id":207136,"date":"2025-07-08T10:45:51","date_gmt":"2025-07-08T02:45:51","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207136\/"},"modified":"2025-07-08T10:45:51","modified_gmt":"2025-07-08T02:45:51","slug":"golang%e7%bb%93%e6%9e%84%e8%a7%a3%e7%bb%84xss","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207136\/","title":{"rendered":"Golang\u7ed3\u6784\u89e3\u7ec4xss"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> Golang\u7ed3\u6784\u89e3\u7ec4xss<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-20 12:00:36<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300aGolang\u7ed3\u6784\u89e3\u7ec4xss\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u6709\u4e00\u4e2a\u7ed3\u6784\u4f53\uff0c\u5176\u4e2d\u6ce8\u5165\u4e86 xss\u3002\u4e3a\u4e86\u5220\u9664\u5b83\uff0c\u6211\u5c06\u5176 json.marshal \uff0c\u7136\u540e\u8fd0\u884c \u200b\u200bjson.htmlescape \u3002\u7136\u540e\u6211\u5c06 json.unmarshal \u5230\u4e00\u4e2a\u65b0\u7684\u7ed3\u6784\u4e2d\u3002 <\/p>\n

\u95ee\u9898\u662f\u65b0\u7ed3\u6784\u4ecd\u7136\u6ce8\u5165\u4e86 xss\u3002 <\/p>\n

\u6211\u6839\u672c\u4e0d\u77e5\u9053\u5982\u4f55\u4ece\u7ed3\u6784\u4e2d\u5220\u9664 xss\u3002\u6211\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\u6765\u5728\u73b0\u573a\u6267\u884c\u6b64\u64cd\u4f5c\uff0c\u4f46\u8003\u8651\u5230\u6709 json.htmlescape \u5e76\u4e14\u6211\u4eec\u53ef\u4ee5\u5c06\u5176\u89e3\u7ec4\u56de\u6765\uff0c\u5b83\u5e94\u8be5\u53ef\u4ee5\u6b63\u5e38\u5de5\u4f5c\uff0c\u4f46\u4e8b\u5b9e\u5e76\u975e\u5982\u6b64\u3002 <\/p>\n

type Person struct {\n    Name string `json:\"name\"`\n}\nfunc main() {\n    var p, p2 Person\n     \/\/ p.Name has XSS\n    p.Name = \"<script>alert(1)<\/script>\"\n    var tBytes bytes.Buffer\n\n    \/\/ I marshal it so I can use json.HTMLEscape\n    marshalledJson, _ := json.Marshal(p)\n    json.HTMLEscape(&tBytes, marshalledJson)\n\n    \/\/ here I insert it into a new struct, sadly the p2 struct has the XSS still \n    err := json.Unmarshal(tBytes.Bytes(), &p2)\n    if err != nil {\n        fmt.Printf(err.Error())\n    }\n    fmt.Print(p2)\n\n}<\/pre>\n
\u9884\u671f\u7ed3\u679c\u662f p2.\u8981\u6e05\u7406\u7684\u540d\u79f0\uff0c\u4f8b\u5982 <script>alert(1)<\/script><\/code><\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u9996\u5148\uff0c \u4e0d\u7b26\u5408\u60a8\u7684\u8981\u6c42\uff1a<\/p>\n
\u4f46\u4f60\u60f3\u8981\u7684\u662f\uff1a<\/p>\n
\u60a8\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528 \u83b7\u5f97\uff0c\u4f46\u4e0d\u80fd<\/em>\u901a\u8fc7\u4efb\u4f55 json \u7f16\u7801\u5668\u4f8b\u7a0b\u83b7\u5f97\u30021<\/sup><\/p>\n
\u5176\u6b21\uff0c\u5982\u679c\u4f60\u68c0\u67e5 json.Marshal<\/code> \u7684\u7ed3\u679c\uff0c\u4f60\u4f1a\u53d1\u73b0\u5b83\u5df2\u7ecf\u7528 \\u003c<\/code> \u66ff\u6362\u4e86 <<\/code> \u7b49\u7b49 – \u5b83\u5df2\u7ecf\u5b8c\u6210\u4e86 json.HTMLEscape<\/code>\uff0c\u6240\u4ee5 json.HTMLEscapezqbendc zqb \u6ca1\u6709\u4efb\u4f55\u5b57\u7b26\u4ee3\u66ff\uff01\u6709\u5173\u793a\u4f8b\uff0c\u8bf7\u53c2\u9605 \u3002<\/code><\/p>\n
\u6b63\u5982 Ahmed Hashem \u6307\u51fa\u7684\u90a3\u6837\uff0c\u5982\u679c\u60a8\u786e\u5b9e\u60f3\u8981\u6267\u884c\u6b64\u7c7b\u64cd\u4f5c\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u53cd\u5c04\u6765\u67e5\u627e\u5b57\u7b26\u4e32\u5b57\u6bb5\uff08\u5982 \u4e2d\u6240\u793a\uff09\uff0c\u4f46\u4e00\u822c\u6765\u8bf4\uff0c\u5728\u8f93\u5165\u70b9\u6267\u884c\u6b64\u64cd\u4f5c\u53ef\u80fd\u66f4\u660e\u667a\u3002\u8bf7\u6ce8\u610f\uff0c\u90a3\u91cc\u7684\u7b54\u6848\u4e0d\u4f1a\u9012\u5f52\u5230\u53ef\u80fd\u5305\u542b\u5b57\u7b26\u4e32\u7684\u5185\u90e8\u5bf9\u8c61\u3002<\/p>\n
1<\/sup>JSON \u4e0d\u662f HTML\uff0c\u4e5f\u4e0d\u662f XML \u7b49\u3002\u8bf7\u5728\u60a8\u7684\u5934\u8111\u548c\u4ee3\u7801\u4e2d\u5c06\u5b83\u4eec\u5206\u5f00\u3002<\/p>\n
\u53e6\u8bf7\u53c2\u9605 \uff0c\u8fd9\u662f\u6211\u4eec\u5982\u4f55\u5230\u8fbe\u8fd9\u91cc\u7684\u7b80\u77ed\u6458\u8981\uff0c\u636e\u6211\u6240\u77e5\u6ca1\u6709\u9519\u8bef\uff0c\u8fd9\u5bf9\u4e8e\u968f\u673a\u7f51\u7edc\u6587\u7ae0\u6765\u8bf4\u975e\u5e38\u597d\u3002 \ud83d\ude42 \u5f53\u4f7f\u7528 JSON \u65f6\uff0c\u6211\u4eec\u5f97\u5230\u975e\u5e38\u7b80\u5355\u7684\u7c7b\u578b\u6570\u636e\uff1a\u5bf9\u8c61\u3001\u5b57\u7b26\u4e32\u3001\u6570\u5b57\u3001\u5217\u8868\/\u6570\u7ec4\u3001\u5e03\u5c14\u503c\u548c null\uff1b\u4f8b\u5982\uff0c\u8bf7\u53c2\u89c1 \u3001 \u548c \u3002<\/p>\n
\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aGolang\u7ed3\u6784\u89e3\u7ec4xss\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591aGolang\u77e5\u8bc6\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207136","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207136"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207136\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}