{"id":853,"date":"2024-08-10T20:01:54","date_gmt":"2024-08-10T20:01:54","guid":{"rendered":"http:\/\/www.nokws.top\/?p=853"},"modified":"2024-08-25T07:27:22","modified_gmt":"2024-08-25T07:27:22","slug":"shirofanxuliehuacve-2016-4437","status":"publish","type":"post","link":"http:\/\/www.nokws.top\/index.php\/2024\/08\/10\/shirofanxuliehuacve-2016-4437\/","title":{"rendered":"Shiro\u53cd\u5e8f\u5217\u5316\uff08CVE-2016-4437\uff09"},"content":{"rendered":"\n

\u66f4\u65b0\u8bb0\u5f55\uff1a<\/p>\n\n\n\n

2024.8.11 \u5b8c\u6210
2024.8.18 \u56de\u5f52\u4e86\u4e0b\u4e4b\u524d\u7684\u95ee\u9898\uff0c\u5e76\u65b0\u589e\u4e86\u4fee\u590d\u65b9\u6cd5
2024.8.25 \u5728Java17\u4e0b\u8fdb\u884c\u4e86\u6f0f\u6d1e\u7684\u590d\u73b0\uff08\u672a\u6210\u529f\uff09<\/p>\n\n\n\n

\u6587\u7ae0\u5185\u5bb9\uff1a
1\u3001shiro\u53cd\u5e8f\u5217\u5316\u6e90\u7801\u5206\u6790
2\u3001\u5229\u7528\u5de5\u5177\u7684\u4ee3\u7801\u5206\u6790<\/p>\n\n\n\n

0x01 \u73af\u5883\u642d\u5efa<\/h2>\n\n\n\n

1\u3001\u57fa\u4e8eshadowsock5\/shiro-root: shiro\u6f0f\u6d1e\u73af\u5883\uff081.2.4\uff09 (github.com)<\/a> \u642d\u5efashiro\u73af\u5883
2\u3001\u5229\u7528SummerSec\/ShiroAttack2: shiro\u53cd\u5e8f\u5217\u5316\u6f0f\u6d1e\u7efc\u5408\u5229\u7528,\u5305\u542b\uff08\u56de\u663e\u6267\u884c\u547d\u4ee4\/\u6ce8\u5165\u5185\u5b58\u9a6c\uff09\u4fee\u590d\u539f\u7248\u4e2dNoCC\u7684\u95ee\u9898 https:\/\/github.com\/j1anFen\/shiro_attack<\/a> \u9a8c\u8bc1\u6f0f\u6d1e<\/p>\n\n\n\n

0x02 \u6f0f\u6d1e\u5206\u6790<\/h2>\n\n\n\n

\u641c\u7d22readobject\u76f8\u5173\u4ee3\u7801<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u5b9a\u4f4d\u5230org\/apache\/shiro\/io\/DefaultSerializer.java<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
ByteArrayInputStream bais = new ByteArrayInputStream(serialized);\nBufferedInputStream bis = new BufferedInputStream(bais);\ntry {\n    ObjectInputStream ois = new ClassResolvingObjectInputStream(bis);\n    @SuppressWarnings({\"unchecked\"})\n    T deserialized = (T) ois.readObject();\n    ois.close();\n    return deserialized;\n} <\/code><\/pre>\n\n\n\n
\u4e3b\u8981\u5173\u6ce8\u8fd9\u4e00\u6bb5\u4ee3\u7801\uff1a\u5c1d\u8bd5\u901a\u8fc7\u81ea\u5b9a\u4e49\u7684 ClassResolvingObjectInputStream<\/code> \u7c7b\u6765\u89e3\u6790 bis<\/code> \u4e2d\uff0c\u521b\u5efa\u4e00\u4e2aObjectInputStream\u5bf9\u8c61\u3002
\u4f7f\u7528 ois.readObject()<\/code> \u65b9\u6cd5\u8bfb\u53d6\u5bf9\u8c61\u3002
\u8fd9\u4e2a\u5c31\u662f\u6211\u4eec\u8981\u627e\u7684\u53cd\u5e8f\u5217\u5316\u76f8\u5173\u7684readobject\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u67e5\u770b\u8c03\u7528\u7684\u5730\u65b9org\/apache\/shiro\/mgt\/AbstractRememberMeManager.java<\/p>\n\n\n\n
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\u518d\u627e\u4e0a\u4e00\u6b65\u8c03\u7528<\/p>\n\n\n\n
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\u5230\u8fd9\u91cc\u5c31\u77e5\u9053\u4e86\u8fd9\u6761\u94fe\u8def\u6700\u7ec8\u662f\u901a\u8fc7login\u89e6\u53d1\u7684\u3002<\/p>\n\n\n\n
\u65ad\u70b9\u8c03\u8bd5<\/p>\n\n\n\n
\u8fd9\u91cc\u6ce8\u610f\u767b\u5f55\u5931\u8d25\u7684\u65ad\u70b9\u548c\u767b\u5f55\u6210\u529f\u7684\u65ad\u70b9\u4f4d\u7f6e\u4e0d\u4e00\u81f4\uff08\u4ecelogin\u65b9\u6cd5\u90a3\u91cc\u5f00\u59cb\u6253\u65ad\u70b9\u7684\u8bdd\uff09\u3002<\/p>\n\n\n\n
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\u6700\u5173\u952e\u7684\u4e00\u6b65—\u53cd\u5e8f\u5217\u5316<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u4e4b\u540e\u5c31\u662f\u53cd\u5e8f\u5217\u5316\u521b\u5efa\u5bf9\u8c61\uff0c\u6267\u884c\u4ee3\u7801\u4e86\u3002<\/p>\n\n\n\n
\u53ef\u4ee5\u770b\u5230\u5206\u6790\u7684\u7ed3\u679c\u548c\u5b9e\u9645\u8c03\u8bd5\u7684\u7ed3\u679c\u662f\u4e00\u81f4\u7684\u3002<\/p>\n\n\n\n
0x03 \u6f0f\u6d1e\u4fee\u590d<\/h2>\n\n\n\n
\u91cd\u5199\u65b9\u6cd5\uff0c\u4f7f\u5f97\u53cd\u5e8f\u5217\u5316\u4e4b\u524d\u83b7\u53d6\u5bf9\u8c61\u7684\u540d\u79f0\uff0c\u5e76\u6839\u636e\u767d\u540d\u5355\u6821\u9a8c<\/p>\n\n\n\n
\u5c1d\u8bd5\u4e00\uff1a<\/p>\n\n\n\n
=====\u4ee5\u4e0b\u65b9\u6cd5\u9519\u8bef=====2024.8.18<\/p>\n\n\n\n
ObjectStreamClass osc = ObjectStreamClass.lookupAny<\/em>(ois.readObject().getClass()); \u4f1a\u76f4\u63a5\u5e8f\u5217\u5316\u5bf9\u8c61<\/p>\n\n\n\n
\u540e\u7eed\u5931\u8d25\uff0c\u662f\u56e0\u4e3a\u4e0a\u6b21\u7684ois\u5728\u629b\u51fa\u5f02\u5e38\u524d\u6ca1\u6709\u5173\u95ed<\/p>\n\n\n\n
==========================<\/p>\n\n\n\n
\u8fd9\u91cc\u7b80\u5355\u7684\u4e3e\u4e2a\u4f8b\u5b50\uff08\u6ca1\u6709\u6210\u529f\uff1f\uff09<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u975e\u5e38\u7b80\u5355\u7c97\u66b4\u7684\u65b9\u6cd5\uff0c\u76f4\u63a5\u83b7\u53d6\u53cd\u5e8f\u5217\u5316\u5bf9\u8c61\u7684\u7c7b\u540d\uff0c\u5982\u679c\u4e0d\u7b49\u4e8e\u67d0\u4e9b\u7c7b\u540d\uff0c\u5c31\u76f4\u63a5\u629b\u51fa\u5f02\u5e38<\/p>\n\n\n\n
\u5b9e\u6d4b\u52a0\u5165\u4ee3\u7801\u524d<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u52a0\u5165\u4ee3\u7801\u540e\u4ecd\u4f1a\u6709\u4e00\u6b21\u65b0\u589e\u7684dnslog\u8bb0\u5f55\uff0c\u4f46\u662f\u4e4b\u540e\u4e0d\u4f1a\u518d\u6709\u65b0\u589e\u7684\u8bb0\u5f55\uff0cwhy\uff1f<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u629b\u51fa\u7684\u5f02\u5e38\uff0c\u5e94\u8be5\u6ca1\u6709\u53cd\u5e8f\u5217\u5316\u5bf9\u8c61<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6ca1\u6709\u589e\u52a0\u4ee3\u7801\u65f6\u5019\uff0clog\u8bb0\u5f55\u4e86\u5e8f\u5217\u5316\u7684\u5bf9\u8c61\u5e8f\u5217\u5316\u7684\u7c7b<\/p>\n\n\n\n
\uff08\u8fd9\u91cc\u6dfb\u52a0\u4ee3\u7801\u540e\uff0c\u6bcf\u6b21\u53d1\u9001\u8bf7\u6c42\u90fd\u662f\u4f7f\u7528\u65b0\u7684jssessionid\uff09<\/p>\n\n\n\n
=====<\/p>\n\n\n\n
\u5c1d\u8bd5\u4e8c\uff1a<\/p>\n\n\n\n
\u91cd\u5199resolveclass<\/p>\n\n\n\n
protected Class resolveClass(ObjectStreamClass osc) throws IOException,ClassNotFoundException {\n    try {\n        String className = osc.getName();\n        \/\/ \u5e38\u89c1\u7684\u5371\u9669\u7c7b\u9ed1\u540d\u5355\n        List<String> dangerousClasses = Arrays.asList(\n        \"java.util.PriorityQueue\",\n        \"com.sun.org.apache.xalan.internal.xsltc.trax.TemplatesImpl\",\n        \"java.rmi.server.RemoteObjectInvocationHandler\",\n        \"javax.naming.spi.ObjectFactory\",\n        \"java.lang.reflect.Proxy\"\n        );\n\n        \/\/ \u68c0\u67e5\u662f\u5426\u5305\u542b\u5371\u9669\u7c7b\n        for (String dangerousClass : dangerousClasses) {\n            if (className.equals(dangerousClass) || className.contains(dangerousClass)) {\n                throw new ClassNotFoundException(\"Attempted to load dangerous class [\" + className + \"]\");\n            }\n        }\n\n        \/\/ \u9488\u5bf9 org.apache \u5305\u7684\u7279\u5b9a\u5904\u7406\n        if (className.startsWith(\"org.apache.\")) {\n            if (className.startsWith(\"org.apache.shiro.subject.\")) {\n                return ClassUtils.forName(className);\n            }\n            throw new ClassNotFoundException(\"Attempted to load dangerous class from org.apache package [\" + className + \"]\");\n        }\n\n        \/\/ \u767d\u540d\u5355\u68c0\u67e5\n        if (className.startsWith(\"java.lang\") || className.startsWith(\"java.util\")) {\n            return ClassUtils.forName(className);\n        } else {\n            throw new ClassNotFoundException(\"Class not allowed [\" + className + \"]\");\n        }\n    } catch (UnknownClassException uce) {\n        throw new ClassNotFoundException(\"Unable to load ObjectStreamClass [\" + osc + \"]: \",     uce);\n    }\n}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
0x04 \u95ee\u9898<\/h2>\n\n\n\n
1\u3001\u6dfb\u52a0\u4ee3\u7801\u540e\u6ca1\u6709\u53cd\u5e8f\u5217\u5316\u5bf9\u8c61\uff0c\u4e3a\u4ec0\u4e48\u8fd8\u4f1a\u6267\u884c\u4e00\u6b21\uff1f\uff08\u5df2\u89e3\u51b324.8.18\uff09<\/p>\n\n\n\n
2\u3001\u5b9e\u9645\u751f\u4ea7\u4e2d\u4e00\u822c\u662f\u7ee7\u627fObjectInputStream\u7136\u540e\u91cd\u5199\u4ed6resolveClass\u65b9\u6cd5\uff08\u5df2\u5b9e\u73b024.8.18\uff09<\/p>\n\n\n\n
3\u3001dnslog\u7684\u8bf7\u6c42\u4e2a\u6570\u7684\u95ee\u9898
     \u5982\u679c\u7528\u6237\u8bf7\u6c42\u89e3\u6790 www.example.com<\/code>\uff1a
        \u7528\u6237\u7aef\uff1a
        \u53d1\u9001\u4e00\u4e2a DNS \u67e5\u8be2\u8bf7\u6c42\u5230\u672c\u5730 DNS \u89e3\u6790\u670d\u52a1\u5668\u3002
        \u672c\u5730 DNS \u89e3\u6790\u670d\u52a1\u5668\uff08\u82e5\u672a\u7f13\u5b58\uff09\uff1a
        \u5411\u6839 DNS \u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\u3002
        \u5411 TLD DNS \u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\u3002
        \u5411\u6743\u5a01 DNS \u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\u3002
        (4\u4e2a\u8bf7\u6c42)<\/p>\n\n\n\n
0X05 Java17\u4e0b\u7684\u6f0f\u6d1e\u590d\u73b0<\/h2>\n\n\n\n
\u5728 Java 17 \u4e2d\uff0cTemplatesImpl \u7c7b\u548c\u76f8\u5173\u7684\u5185\u90e8 API \u88ab\u5c01\u88c5\u5728\u6a21\u5757\u7cfb\u7edf\u4e2d\uff0c\u5e76\u4e14\u4e0d\u518d\u5bf9\u5916\u90e8\u6a21\u5757\u516c\u5f00\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5373\u4f7f\u68c0\u6d4b\u5230\u4e86\u79d8\u94a5\uff0c\u4e5f\u65e0\u6cd5\u5229\u7528<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
0x06 \u53c2\u8003<\/h2>\n\n\n\n
Java\u5b89\u5168\u4e4bShiro 550\u53cd\u5e8f\u5217\u5316\u6f0f\u6d1e\u5206\u6790 – nice_0e3 – \u535a\u5ba2\u56ed (cnblogs.com)<\/a><\/p>\n\n\n\n
Java\u53cd\u5e8f\u5217\u5316(\u516d) | Shiro\u306e\u8d77\u59cb\u7bc7(\u73af\u5883\u642d\u5efa+\u539f\u7406\u5206\u6790) – h0cksr – \u535a\u5ba2\u56ed (cnblogs.com)<\/a><\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u66f4\u65b0\u8bb0\u5f55\uff1a 2024.8.11 \u5b8c\u62102024.8.18 \u56de\u5f52\u4e86\u4e0b\u4e4b\u524d\u7684\u95ee\u9898\uff0c\u5e76\u65b0\u589e\u4e86\u4fee\u590d\u65b9\u6cd52024.8.25 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-853","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/www.nokws.top\/index.php\/wp-json\/wp\/v2\/posts\/853","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.nokws.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.nokws.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.nokws.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.nokws.top\/index.php\/wp-json\/wp\/v2\/comments?post=853"}],"version-history":[{"count":18,"href":"http:\/\/www.nokws.top\/index.php\/wp-json\/wp\/v2\/posts\/853\/revisions"}],"predecessor-version":[{"id":978,"href":"http:\/\/www.nokws.top\/index.php\/wp-json\/wp\/v2\/posts\/853\/revisions\/978"}],"wp:attachment":[{"href":"http:\/\/www.nokws.top\/index.php\/wp-json\/wp\/v2\/media?parent=853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.nokws.top\/index.php\/wp-json\/wp\/v2\/categories?post=853"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.nokws.top\/index.php\/wp-json\/wp\/v2\/tags?post=853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}