{"id":4014,"date":"2025-09-07T11:11:14","date_gmt":"2025-09-07T03:11:14","guid":{"rendered":"https:\/\/fushuling.com\/?p=4014"},"modified":"2025-09-07T15:54:29","modified_gmt":"2025-09-07T07:54:29","slug":"%e4%bb%a3%e7%a0%81%e5%ae%a1%e8%ae%a1%e4%b8%ad%e7%9a%84fail-open%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/fushuling.com\/index.php\/2025\/09\/07\/%e4%bb%a3%e7%a0%81%e5%ae%a1%e8%ae%a1%e4%b8%ad%e7%9a%84fail-open%e9%97%ae%e9%a2%98\/","title":{"rendered":"\u4ee3\u7801\u5ba1\u8ba1\u4e2d\u7684fail-open\u95ee\u9898"},"content":{"rendered":"\n

\u524d\u8a00<\/h1>\n\n\n\n

\u7ed9\u4f60\u4e0b\u9762\u4e00\u6bb5\u4ee3\u7801\uff0c\u4f60\u80fd\u5426\u770b\u51fa\u8be5\u4ee3\u7801\u4e2d\u51fa\u73b0\u7684\u95ee\u9898\uff1f<\/p>\n\n\n\n

function checkSignature($signature)
{
    try {
        $decoded = base64_decode($signature, true);
        if ($decoded === false) {
            throw new Exception(\"Invalid base64 encoding\");
        }
        global $Secret_key;
        return $decoded === $Secret_key;
    } catch (Exception $e) {
        echo $e->getMessage() . PHP_EOL;
    }
}
\u200b
function verifySignature($headers)
{
    if (!isset($headers['X-Signature'])) {
        return false;
    }
    $validSignature = $headers['X-Signature'];
    if (checkSignature($validSignature) === false) {
        return false;
    }
    return true;
}
\u200b
if (!verifySignature(getallheaders())) {
    http_response_code(403);
?><\/pre>\n\n\n\n
\u5982\u679c\u4e0d\u80fd\u7684\u8bdd\uff0c\u6211\u8ba4\u4e3a\u4f60\u5f88\u6709\u5fc5\u8981\u63a5\u7740\u5f80\u4e0b\u770b\ud83d\ude02<\/p>\n\n\n\n
\u8d77\u56e0\u662f\u524d\u51e0\u5929\u5728\u5fae\u4fe1\u4e0a\u770b\u5230\u4e86\u5fae\u6b65\u7684\u4e00\u4e2a\u63a8\u9001\uff1a\u6f0f\u6d1e\u901a\u544a | Gitblit \u8eab\u4efd\u8ba4\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e<\/a>\uff0c\u5176\u4e2d\u8fd9\u4e00\u6bb5\u5bf9\u4e8e\u6f0f\u6d1e\u7684\u63cf\u8ff0\u52fe\u8d77\u4e86\u6211\u8bb8\u591a\u7684\u56de\u5fc6\uff1a<\/p>\n\n\n\n
\"img\"\/<\/div><\/figure>\n\n\n\n
\n
\u89e6\u53d1Gitblit\u7b7e\u540d\u9a8c\u8bc1\u5931\u8d25\u5bfc\u81f4\u9a8c\u8bc1\u6d41\u7a0b\u56de\u9000\u81f3\u57fa\u4e8e\u5bc6\u7801\u7684\u8eab\u4efd\u8ba4\u8bc1\u6d41\u7a0b\u5e76\u63d0\u524d\u8fd4\u56de true\uff0c\u4ece\u800c\u7ed5\u8fc7\u8eab\u4efd\u8ba4\u8bc1<\/p>\n<\/blockquote>\n\n\n\n
\u5728\u6211\u7684\u5370\u8c61\u4e2d\uff0c\u8fd9\u7c7b\u7531\u4e8e\u89e6\u53d1\u5931\u8d25\u6216\u8005\u62a5\u9519\u5bfc\u81f4\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u7ed5\u8fc7\u6709\u5f88\u591a\u5f88\u591a\uff0c\u548c\u6211\u4eec\u719f\u77e5\u7684\u7f16\u7a0b\u8bed\u8a00\u7279\u6027\u5bfc\u81f4\u7684\u5b89\u5168\u6f0f\u6d1e\u4e0d\u540c\u7684\u662f\uff0c\u8fd9\u7c7b\u95ee\u9898\u662f\u5b8c\u5168\u7531\u5f00\u53d1\u8005\u5728\u7a0b\u5e8f\u903b\u8f91\u7684\u8bbe\u8ba1\u4e0d\u5b8c\u5907\u5bfc\u81f4\u7684\u3002\u4e8e\u662f\u6211\u597d\u5947\u7684\u95ee\u4e86\u95eegemini\u8fd9\u7c7b\u95ee\u9898\u53eb\u4ec0\u4e48\u540d\u5b57\uff0c\u5b83\u544a\u8bc9\u6211\u53eb\u505afail-open<\/strong>\u95ee\u9898\uff0c\u4e8e\u662f\u672c\u6587\u6211\u4eec\u5c31\u7528fail-open<\/code>\u6765\u79f0\u547c\u8fd9\u7c7b\u903b\u8f91\u6f0f\u6d1e\u4e86XD<\/p>\n\n\n\n
\"img\"\/<\/div><\/figure>\n\n\n\n
\u4e0d\u8fc7\u5728\u7f51\u4e0a\u6211\u5176\u5b9e\u6ca1\u600e\u4e48\u641c\u5230\u5bf9\u4e8e\u8fd9\u7c7b\u5b89\u5168\u95ee\u9898\u7684\u4e25\u683c\u5b9a\u4e49\u6216\u8005\u7814\u7a76\u5565\u7684\uff0c\u53ea\u662f\u627e\u5230\u4e86\u4e00\u4e2a\u7c7b\u4f3c\u79d1\u666e\u7684\u6587\u7ae0\u63d0\u4e86\u63d0\u5bf9\u4e8efail-open\u7684\u5b9a\u4e49\uff1a\u6545\u969c\u6253\u5f00\uff08Fail Open\uff09<\/a><\/p>\n\n\n\n
\"img\"\/<\/div><\/figure>\n\n\n\n
\u5927\u6982\u7684\u610f\u601d\u5c31\u662f\u8fd9\u662f\u4e00\u79cd\u67b6\u6784\u5c42\u7684\u8bbe\u8ba1\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u67d0\u4e9b\u66f4\u52a0\u91cd\u8981\u7684\u529f\u80fd\u5728\u5371\u673a\u5173\u5934\u80fd\u6b63\u5e38\u4f7f\u7528\uff0c\u4e8e\u662f\u4fdd\u6301\u7cfb\u7edf\u5728\u6545\u969c\u7684\u60c5\u51b5\u4e0b\u4e0d\u9009\u62e9\u5173\u95ed\u800c\u662f\u8ba9\u5176\u6b63\u5e38\u8fd0\u884c\u3002\u5f53\u7136\uff0c\u6211\u8ba4\u4e3a\u8fd9\u4e0e\u672c\u6587\u8981\u8ba8\u8bba\u7684\u5185\u5bb9\u662f\u4e0d\u592a\u4e00\u6837\u7684\uff0c\u56e0\u4e3a\u6211\u4eec\u8fd9\u91cc\u8ba8\u8bba\u7684 fail-open<\/code> \u95ee\u9898\u5927\u90e8\u5206\u662f\u7531\u4e8e\u5f00\u53d1\u8005\u5b89\u5168\u610f\u8bc6\u4e0d\u5230\u4f4d\u5bfc\u81f4\u7a0b\u5e8f\u903b\u8f91\u8bbe\u8ba1\u5931\u8bef\uff0c\u800c\u4e0d\u662f\u56e0\u4e3a\u4ed6\u4eec\u6b63\u662f\u51fa\u4e8e\u8fd9\u7c7b\u7279\u6b8a\u7684\u76ee\u6807\u800c\u4e13\u95e8\u8bbe\u8ba1\u7684\u3002<\/p>\n\n\n\n
\u90a3\u4e48\u518d\u56de\u5230\u6700\u5f00\u59cb\u6211\u63d0\u5230\u7684\u4ee3\u7801\uff0c\u60f3\u5fc5\u4f60\u5df2\u7ecf\u5bf9\u4e8e\u5982\u4f55\u7ed5\u8fc7\u8fd9\u4e2a\u9274\u6743\u6709\u4e86\u4e00\u70b9\u601d\u8def\u4e86\uff0c\u4e8b\u5b9e\u4e0a\u8fd9\u5c31\u662f\u4e00\u4e2a\u5178\u578b\u7684 fail-open<\/code> \u95ee\u9898\uff0c\u7531\u4e8e\u89e6\u53d1\u7a0b\u5e8f\u6545\u969c\u5bfc\u81f4\u7684\u7a0b\u5e8f\u903b\u8f91\u7ed5\u8fc7\u3002\u8fd9\u91cc\u7684 checkSignature<\/code> \u51fd\u6570\u4ee5\u53ca verifySignature<\/code> \u51fd\u6570\u7684\u9a8c\u8bc1\u914d\u5408\u5b58\u5728\u4e00\u4e2a\u4e25\u91cd\u7684\u903b\u8f91\u7f3a\u9677\uff0ccheckSignature<\/code> \u53ea\u662f\u5728\u80fd\u6b63\u5e38\u89e3\u7801\u7684\u65f6\u5019\u628a\u7b7e\u540d\u548c $Secret_Key<\/code> \u8fdb\u884c\u6bd4\u8f83\uff0c\u8fd4\u56de\u771f\u6216\u8005\u5047\uff0c\u800c verifySignature<\/code> \u53ea\u6709\u5728 checkSignature<\/code> \u8fd4\u56de\u5047\u7684\u65f6\u5019\u624d\u9000\u51fa\uff0c\u5426\u5219\u9ed8\u8ba4\u8fd4\u56de\u771f\uff0c\u90a3\u4e48\u8fd9\u91cc\u6211\u4eec\u5176\u5b9e\u53ea\u9700\u8981\u6784\u9020\u4e00\u4e2a\u9519\u8bef\u7684base64\u7f16\u7801\uff0c\u6bd4\u5982@@@\uff0c\u8ba9 checkSignature<\/code> \u89e3\u7801\u9519\u8bef\uff0c\u90a3\u4e48\u8be5\u51fd\u6570\u5c31\u4f1a\u629b\u51fa\u9519\u8bef\uff0c\u4e0d\u4f1a\u8fd4\u56de\u4efb\u4f55\u4e1c\u897f\uff0c\u81ea\u7136\u4e5f\u4e0d\u4f1a\u8fd4\u56de\u5047\uff0cverifySignature<\/code> \u4e5f\u80fd\u6b63\u5e38\u901a\u8fc7\uff1a<\/p>\n\n\n\n
\"img\"\/<\/div><\/figure>\n\n\n\n
\u4e0a\u9762\u7684\u4ee3\u7801\u6765\u81ea\u4e8e\u6211\u4e4b\u524d\u51fa\u8fc7\u7684\u4e00\u4e2actf\u9898\u76ee\uff1aMOCSCTF2025 ez-write&&ez-injection<\/a>\uff0c\u4f60\u53ef\u80fd\u8ba4\u4e3a\u4e16\u754c\u4e0a\u4e0d\u4f1a\u771f\u7684\u6709\u4eba\u8fd9\u4e48\u5199\u4ee3\u7801\uff0c\u4f46\u5b9e\u9645\u4e0a\u8fd9\u662f\u67d0\u77e5\u540d\u4e92\u8054\u7f51\u516c\u53f8\u7ebf\u4e0a\u7684\u771f\u5b9e\u4ee3\u7801\u903b\u8f91\uff0c\u867d\u7136\u6211\u5df2\u7ecf\u4e0d\u592a\u8bb0\u5f97\u4ee3\u7801\u7684\u7ec6\u8282\u4e86\uff0c\u4f46\u5927\u81f4\u7684\u903b\u8f91\u5c31\u662f\u5982\u4e0a\uff0c\u53ea\u9700\u8981\u6784\u9020\u4e00\u4e2a\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u62a5\u9519\u7684\u7f16\u7801\uff0c\u5c31\u53ef\u4ee5\u795e\u5947\u7684\u7ed5\u8fc7\u6743\u9650\u68c0\u6d4b\u3002<\/p>\n\n\n\n
\u771f\u5b9e\u4e16\u754c\u4e2d\u7684fail-open\u95ee\u9898<\/h1>\n\n\n\n
fail-open\u95ee\u9898\u7684\u5b9a\u4e49<\/h2>\n\n\n\n
\u8fd9\u91cc\u6211\u4eec\u6765\u4e3e\u4e24\u4e2a\u771f\u5b9e\u9879\u76ee\u4e2d\u7684 fail-open<\/code> \u6f0f\u6d1e\uff0c\u4e00\u4e2a\u6765\u81ea\u4e8ejava\uff0c\u53e6\u4e00\u4e2a\u6765\u81ea\u4e8ephp\uff0c\u53ef\u4ee5\u53d1\u73b0\u8fd9\u662f\u4e00\u4e2a\u4e0e\u8bed\u8a00\u65e0\u5173\u7684\u7eaf\u8bbe\u8ba1\u5c42\u9762\u7684\u95ee\u9898\u3002\u7531\u4e8e\u8fd9\u4e2a\u6f0f\u6d1e\u540d\u5b57\u4f3c\u4e4e\u90fd\u662f\u6211\u53d6\u7684\uff0c\u6240\u4ee5\u6211\u5bf9\u8fd9\u7c7b\u95ee\u9898\u505a\u4e00\u4e2a\u7c97\u7565\u7684\u5b9a\u4e49\uff1a<\/p>\n\n\n\n
\n
fail-open\u00a0\u95ee\u9898\uff0c\u662f\u6307\u5f53\u7a0b\u5e8f\u51fa\u73b0\u6545\u969c(\u5982\u9274\u6743\u5931\u8d25\u3001\u629b\u51fa\u62a5\u9519\u7b49)\u65f6\uff0c\u6d41\u7a0b\u5e76\u6ca1\u6709\u7ec8\u6b62\uff0c\u800c\u662f\u7ee7\u7eed\u8fd0\u884c\uff0c\u5bfc\u81f4\u6f0f\u6d1e\u4ea7\u751f\u7684\u73b0\u8c61\u3002<\/p>\n<\/blockquote>\n\n\n\n
dataease jwt \u9274\u6743\u7ed5\u8fc7<\/h2>\n\n\n\n
\u8fd9\u4e2a\u6f0f\u6d1e\u6765\u81ea\u4e8eLe1a\u5e08\u5085\uff1ahttps:\/\/github.com\/dataease\/dataease\/security\/advisories\/GHSA-xx2m-gmwg-mf3r<\/a><\/p>\n\n\n\n
\u6700\u65e9\u57282024\u5e74\u7684\u65f6\u5019\u5176\u5b9e\u5c31\u6709\u5e08\u5085\u63d0\u5230\u8fc7DataEase\u5b58\u5728\u4f2a\u9020JWT\u4ee4\u724c\u6f0f\u6d1e:https:\/\/github.com\/dataease\/dataease\/security\/advisories\/GHSA-45v9-gfcv-xcq6<\/a>\uff0cLe1a\u5e08\u5085\u7684\u8fd9\u4e2a\u6f0f\u6d1e\u5176\u5b9e\u662f\u8be5\u8865\u4e01\u7684\u4e00\u4e2abypass\uff0c\u5f53\u65f6\u5c31\u6709\u5e08\u5085\u63d0\u5230\u4e86\uff0c\u7531\u4e8e JWT \u5bc6\u94a5\u662f\u786c\u7f16\u7801\u5728\u4ee3\u7801\u4e2d\u7684\uff0cUID \u548c OID \u4e5f\u662f\u786c\u7f16\u7801\u7684\uff0c\u6240\u4ee5\u653b\u51fb\u8005\u53ef\u4ee5\u76f4\u63a5\u4f2a\u9020\u4e00\u4e2a JWT \u5e76\u63a5\u7ba1\u670d\u52a1\u5668\uff0c\u5f53\u65f6\u5f00\u53d1\u8005\u91c7\u7528\u7684\u4fee\u590dcommit\u4e3a\uff1ahttps:\/\/github.com\/dataease\/dataease\/commit\/e755248d59543bcd668ace495f293ff735fa82e9<\/a><\/p>\n\n\n\n
\u5728\u65e7\u4ee3\u7801\u91cc\u7528\u6237 ID \u548c\u7ec4\u7ec7 ID \u88ab\u5199\u6b7b\u4e3a 1<\/code>\uff0cJWT \u7684\u7b7e\u540d\u5bc6\u94a5\u5c31\u662f\u4e00\u4e2a\u786c\u7f16\u7801\u7684 MD5 \u5b57\u7b26\u4e32\uff0c\u6240\u4ee5\u53ef\u4ee5\u88ab\u653b\u51fb\u8005\u8f7b\u677e\u4f2a\u9020\uff0c\u800c\u5728\u65b0\u4ee3\u7801\u91cc JWT \u7b7e\u540d\u5bc6\u94a5\u4e0d\u518d\u5199\u6b7b\uff0c\u800c\u662f\u4ece\u7ba1\u7406\u5458\u5b9e\u9645\u8f93\u5165\u7684\u5bc6\u7801\u52a8\u6001\u751f\u6210\uff0c\u5e76\u4e14 JWT \u6821\u9a8c\u65f6\u4f1a\u6821\u9a8c uid<\/code> \u548c oid<\/code> claim\uff0c\u5fc5\u987b\u548c TokenUserBO \u5339\u914d\uff0cToken \u5fc5\u987b\u57fa\u4e8e\u5f53\u524d\u5bc6\u7801\u7684 secret \u7b7e\u53d1\uff0cToken \u5185\u7684 uid<\/code> \u548c oid<\/code> \u5fc5\u987b\u4e0e\u7528\u6237\u5b9e\u9645\u4fe1\u606f\u4e00\u81f4\uff0c\u56e0\u6b64\u81f3\u5c11\u4ece\u5f00\u53d1\u8005\u7684\u89c6\u89d2\u91cc\u4fee\u590d\u4e86 JWT \u7684\u4f2a\u9020\u95ee\u9898\u3002<\/p>\n\n\n\n
\u90a3\u4e48Le1a\u5e08\u5085\u662f\u600e\u4e48\u7ed5\u8fc7\u7684\u5462\uff1f\u4ece\u62a5\u544a\u91cc\u53ef\u4ee5\u770b\u51fa\u6765\uff0c\u5f53 secret \u9a8c\u8bc1\u5931\u8d25\u5e76\u4e14\u8bbe\u7f6e\u4e86\u72b6\u6001\u7801\u548c\u54cd\u5e94\u540e\uff0c\u6d41\u7a0b\u5e76\u6ca1\u6709\u7ec8\u6b62\uff0c\u800c\u662f\u7ee7\u7eed\u8fdb\u5165 filterChain.doFilter(servletRequest, servletResponse)<\/code>\uff0c\u6240\u4ee5 secret<\/code>\u9a8c\u8bc1\u5b8c\u5168\u5c31\u6ca1\u6709\u6210\u529f\u751f\u6548\uff0c\u5bfc\u81f4\u653b\u51fb\u8005\u53ef\u4ee5\u7ee7\u7eed\u4f7f\u7528\u4efb\u610fsecret\u6765\u7b7e\u53d1\u7b26\u5408\u683c\u5f0f\u7684 JWT\uff0c\u4ee5\u6b64\u7ed5\u8fc7\u9274\u6743\u3002<\/p>\n\n\n\n
\"img\"\/<\/div><\/figure>\n\n\n\n
\u53ef\u4ee5\u770b\u51fa\u6765\u8fd9\u5c31\u662f\u4e00\u4e2a fail-open<\/code> \u95ee\u9898\uff0c\u5f53\u7a0b\u5e8f\u51fa\u73b0\u6545\u969c(\u9274\u6743\u5931\u8d25)\u65f6\uff0c\u6d41\u7a0b\u5e76\u6ca1\u6709\u7ec8\u6b62\uff0c\u800c\u662f\u7ee7\u7eed\u8fd0\u884c\uff0c\u5bfc\u81f4\u4e86\u6f0f\u6d1e\u7684\u4ea7\u751f\u3002<\/p>\n\n\n\n
\u7985\u9053\u9274\u6743\u7ed5\u8fc7<\/h2>\n\n\n\n
\u8fd9\u7bc7\u6587\u7ae0\u6211\u662f\u770b\u7684huamang\u54e5\u54e5\u7684\u535a\u5ba2\uff1aZentaopms\u524d\u53f0\u6743\u9650\u7ed5\u8fc7+\u540e\u53f0\u8fdc\u7a0b\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u5206\u6790<\/a><\/p>\n\n\n\n
\u5f53\u7528\u6237\u672a\u6388\u6743\u8bbf\u95ee\u7f51\u7ad9\u65f6\uff0c\u68c0\u6d4b\u5230\u65e0\u6388\u6743\u4f1a\u8fdb\u5165deny\uff0c\u4e8e\u662f\u4f1a\u8fdb\u5165end\uff0c\u629b\u51fa\u5f02\u5e38\uff1a<\/p>\n\n\n\n
\"img\"\/<\/div><\/figure>\n\n\n\n
\u4f46\u662f\u5f02\u5e38\u5904\u7406\u8fd9\u91cc\uff0c\u7a0b\u5e8f\u5e76\u6ca1\u6709\u9000\u51fa\uff0c\u800c\u662fecho\u4e86\u4e00\u53e5\u62a5\u9519(\u662f\u4e0d\u662f\u548c\u6211\u5728\u6587\u7ae0\u5f00\u5934\u4e3e\u4f8b\u7684\u4ee3\u7801\u5341\u5206\u7684\u76f8\u4f3c)\uff0c\u5bfc\u81f4\u6d41\u7a0b\u7ee7\u7eed\u6267\u884c\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u8fdb\u4e00\u6b65\u672a\u6388\u6743\u7684\u5229\u7528\uff0c\u5bfc\u81f4rce\u3002\u663e\u7136\uff0c\u8fd9\u4e5f\u662f\u4e00\u4e2a\u5178\u578b\u7684 fail-open<\/code> \u95ee\u9898\uff0c\u5f53\u7a0b\u5e8f\u51fa\u73b0\u6545\u969c\u65f6\uff0c\u6d41\u7a0b\u5e76\u672a\u7ec8\u6b62\u800c\u662f\u7ee7\u7eed\u6267\u884c\uff0c\u5bfc\u81f4\u4e86\u6f0f\u6d1e\u7684\u4ea7\u751f\u3002<\/p>\n\n\n\n
\"img\"\/<\/div><\/figure>\n\n\n\n
\u5982\u4f55\u81ea\u52a8\u5316\u7684\u68c0\u6d4bfail-open\u95ee\u9898<\/h1>\n\n\n\n
\u4f5c\u4e3a\u4e00\u4e2a\u8d1f\u8d23\u4efb\u7684hacker\uff0c\u5728\u63d0\u51fa\u95ee\u9898\u4e4b\u540e\u81ea\u7136\u5e94\u5f53\u987a\u4fbf\u63d0\u51fa\u5982\u4f55\u89e3\u51b3\u95ee\u9898\uff0c\u9996\u5148\u6700\u81ea\u7136\u7684\u601d\u8def\u5e94\u8be5\u662f\u7528fuzz\uff0c\u4e0d\u65ad\u7684\u8f93\u5165\u4e00\u4e9b\u5947\u5947\u602a\u602a\u7684\u5b57\u7b26\u89e6\u53d1\u62a5\u9519\uff0c\u770b\u770b\u80fd\u4e0d\u80fd\u7ed5\u8fc7\u7a0b\u5e8f\u7684\u6743\u9650\u6821\u9a8c\uff0c\u4f46\u4e00\u4e2a\u81f4\u547d\u7684\u7f3a\u9677\u662f\uff0c\u4e00\u4e2a\u9879\u76ee\u91cc\u53ef\u80fd\u7684\u63a5\u53e3\u592a\u591a\u4e86\uff0c\u53ef\u80fd\u5bfc\u81f4\u62a5\u9519\u7684\u6267\u884c\u8def\u5f84\u4e5f\u6709\u5f88\u591a\uff0c\u4f46\u53ef\u80fd\u53ea\u6709\u5728\u67d0\u4e2a\u7279\u5b9a\u7684\u70b9\u89e6\u53d1\u7a0b\u5e8f\u6545\u969c\u624d\u53ef\u80fd\u5bfc\u81f4fail-open<\/code>\u95ee\u9898\uff0c\u80fd\u4e0d\u80fdfuzz\u5230\u5c31\u770b\u5929\u4e86\u3002\u800c\u4f5c\u4e3a\u4e00\u4e2a\u4e4b\u524d\u641e\u8fc7\u4e00\u6bb5\u65f6\u95f4\u9759\u6001\u5206\u6790\u7684\u4eba\uff0c\u76f4\u89c9\u544a\u8bc9\u6211\u8fd9\u7c7b\u95ee\u9898\u5176\u5b9e\u5b8c\u5168\u80fd\u4ece\u9759\u6001\u5206\u6790\u7684\u89d2\u5ea6\u89e3\u51b3\uff0c\u6bd5\u7adf\u8fd9\u5c31\u662f\u4e00\u4e2a\u7eaf\u7cb9\u7684\u63a7\u5236\u6d41\u7684\u95ee\u9898\uff0c\u5982\u679c\u7a0b\u5e8f\u7684\u63a7\u5236\u6d41\u5728\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\u9047\u5230\u6545\u969c\u6ca1\u6709\u7ec8\u6b62\u800c\u662f\u6d41\u5411\u4e86sink\u70b9\uff0c\u90a3\u4e48\u5c31\u8bf4\u660e\u4e86\u7cfb\u7edf\u4e2d\u53ef\u80fd\u5b58\u5728 fail-open<\/code> \u95ee\u9898\u3002<\/p>\n\n\n\n
\u548c\u6211\u5927\u54e5yulate\u4ea4\u6d41\u4e86\u4e4b\u540e\uff0c\u4ed6\u72e0\u72e0\u7684\u62f7\u6253\u4e86\u6211\uff0c\u8bf4\u903b\u8f91\u4e0a\u7684\u63a7\u5236\u6d41\u68c0\u6d4b\u8fd9\u7c7b\u6f0f\u6d1e\u81ea\u7136\u6ca1\u5565\u95ee\u9898\uff0c\u5173\u952e\u662f\u53bb\u54ea\u513f\u627esource\u548csink\u70b9\u5462\uff1f\u9996\u5148\u6211\u611f\u89c9sink\u70b9\u8fd9\u4e00\u5757\u53ef\u80fd\u5c31\u5f97\u5bf9\u7a0b\u5e8f\u8fdb\u884c\u5efa\u6a21\u4e86\uff0c\u6bd4\u5982\u5bf9\u4e8espring\u7c7b\u7684\u9879\u76ee\uff0c\u9274\u6743\u7684\u653e\u884c\u70b9\u53ef\u80fd\u5c31\u662f dofilter<\/code>\uff0c\u5f53\u7136\u53ef\u80fd\u6709\u4e9b\u7a0b\u5e8f\u4f1a\u662f return true<\/code> \u4e4b\u7c7b\u7684\uff0c\u9700\u8981\u5177\u4f53\u95ee\u9898\u5177\u4f53\u5206\u6790\u3002source\u70b9\u6211\u8ba4\u4e3a\u4e0d\u5e94\u8be5\u9009\u53d6\u4e00\u822c\u7684\u5e38\u89c1source\u70b9\uff0c\u6bd4\u5982\u90a3\u4e9b\u8bfb\u53d6\u7528\u6237\u8f93\u5165\u7684\u51fd\u6570\uff0c\u800c\u662f\u9009\u62e9\u53ef\u80fd\u51fa\u73b0”\u7a0b\u5e8f\u6545\u969c”\u7684\u51fd\u6570\uff0c\u56e0\u4e3a\u6b63\u5e38\u7684\u9274\u6743\u901a\u8fc7\u7684\u6267\u884c\u6d41\u7a0b\u81ea\u7136\u662f\u4e0d\u4f1a\u7ecf\u8fc7”\u6545\u969c”\u70b9\u7684\uff0c\u65e2\u7136\u662f fail-open<\/code> \u95ee\u9898\uff0c\u90a3\u4e48\u6211\u4eec\u81ea\u7136\u8981\u4ece\u53ef\u80fd\u5bfc\u81f4\u51fa\u73b0”\u7a0b\u5e8f\u6545\u969c”\u7684\u89d2\u5ea6\u8fdb\u884c\u641c\u7d22\uff0c\u5206\u6790\u5728\u51fa\u73b0\u6545\u969c\u65f6\u63a7\u5236\u6d41\u80fd\u4e0d\u80fd\u6d41\u5411sink\u70b9\u3002<\/p>\n\n\n\n
\u4e2a\u4eba\u611f\u89c9\u53ef\u4ee5\u91c7\u53d6\u4ecesink\u5230source\u7684\u89d2\u5ea6\u8fdb\u884c\u9006\u5411\u641c\u7d22\uff0c\u4ecesink\u4e00\u4e2a\u4e00\u4e2a\u6d41\u5411\u53ef\u80fd\u51fa\u73b0”\u6545\u969c”\u7684source\uff0c\u5224\u65ad\u7528\u6237\u80fd\u5426\u5230\u8fbe\u8fd9\u4e2asource\u70b9\uff0c\u5982\u679c\u80fd\u81ea\u7136\u5c31\u8bf4\u660e\u7cfb\u7edf\u4e2d\u5b58\u5728\u95ee\u9898\uff0c\u7b49\u540e\u9762\u6709\u7a7a\u4e86\u6211\u53ef\u80fd\u4f1a\u5199\u4e2a\u5c0fdemo\uff0c\u656c\u8bf7\u671f\u5f85XD<\/p>\n","protected":false},"excerpt":{"rendered":"
\u524d\u8a00 \u7ed9\u4f60\u4e0b\u9762\u4e00\u6bb5\u4ee3\u7801\uff0c\u4f60\u80fd\u5426\u770b\u51fa\u8be5\u4ee3\u7801\u4e2d\u51fa\u73b0\u7684\u95ee\u9898\uff1f function checkSignature($si […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4014","post","type-post","status-publish","format-standard","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/4014","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/comments?post=4014"}],"version-history":[{"count":4,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/4014\/revisions"}],"predecessor-version":[{"id":4021,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/4014\/revisions\/4021"}],"wp:attachment":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/media?parent=4014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/categories?post=4014"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/tags?post=4014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}