{"vulnerability": "cve-2021-37579", "sightings": [{"uuid": "39fd45d9-ef74-4668-aee2-cfcd439f1498", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-37579", "type": "seen", "source": "https://t.me/arpsyndicate/3194", "content": "#ExploitObserverAlert\n\nCVE-2021-37579\n\nDESCRIPTION: Exploit Observer has 2 entries in 2 file formats related to CVE-2021-37579. The Dubbo Provider will check the incoming request and the corresponding serialization type of this request meet the configuration set by the server. But there's an exception that the attacker can use to skip the security check (when enabled) and reaching a deserialization operation with native java serialization. Apache Dubbo 2.7.13, 3.0.2 fixed this issue by quickly fail when any unrecognized request was found.\n\nFIRST-EPSS: 0.600670000\nNVD-IS: 5.9\nNVD-ES: 3.9", "creation_timestamp": "2024-01-28T03:58:49.000000Z"}, {"uuid": "37f4f959-14fa-4927-b739-f810cd4d5c7d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-37579", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/4326", "content": "#exploit\n1. CVE-2021-37579:\nPre-Auth Unsafe Java Deserialization in Apace Dubbo\nhttps://securitylab.github.com/advisories/GHSL-2021-097-apache-dubbo\n\n2. macOS 11.5.2/iOS 14.7.1 Kernel Race Condition PoC\nhttps://gist.github.com/infernalheaven/f2f6a2fa2ec1b2252955fb8078211da1", "creation_timestamp": "2021-09-18T13:45:14.000000Z"}, {"uuid": "4bdb963d-da53-468a-889d-9206c9ac4581", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-37579", "type": "seen", "source": "https://t.me/cissp/4404", "content": "Offensive security\n1. Obfuscating Malicious, Macro-Enabled Word Docs\nhttps://depthsecurity.com/blog/obfuscating-malicious-macro-enabled-word-docs\n2. Pentest Notes:  Google Cloud Edition\nhttps://infosecwriteups.com/pentest-notes-google-cloud-edition-2e138bb0f504\n\nexploit\n1. CVE-2021-37579:\nPre-Auth Unsafe Java Deserialization in Apace Dubbo\nhttps://securitylab.github.com/advisories/GHSL-2021-097-apache-dubbo\n\n2. macOS 11.5.2/iOS 14.7.1 Kernel Race Condition PoC\nhttps://gist.github.com/infernalheaven/f2f6a2fa2ec1b2252955fb8078211da1 \n\n\nRed Team Tactics\n1. Tool to help on web application firewall bypasses\ud83d\ude00\nhttps://github.com/RedSection/pFuzz\n2. A tool for generating multiple types of NTLMv2 hash theft files\ud83d\ude01\nhttps://github.com/Greenwolf/ntlm_theft\n\nThreat Research\nLocal File Read via Stored XSS in The Opera Browser\nhttps://blogs.opera.com/security/2021/09/bug-bounty-guest-post-local-file-read-via-stored-xss-in-the-opera-browser.", "creation_timestamp": "2026-09-01T17:00:40.243256Z"}, {"uuid": "301098fc-83a1-42ac-a235-c4053d386d7e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-37579", "type": "seen", "source": "https://t.me/cissp/4404", "content": "Offensive security\n1. Obfuscating Malicious, Macro-Enabled Word Docs\nhttps://depthsecurity.com/blog/obfuscating-malicious-macro-enabled-word-docs\n2. Pentest Notes:  Google Cloud Edition\nhttps://infosecwriteups.com/pentest-notes-google-cloud-edition-2e138bb0f504\n\nexploit\n1. CVE-2021-37579:\nPre-Auth Unsafe Java Deserialization in Apace Dubbo\nhttps://securitylab.github.com/advisories/GHSL-2021-097-apache-dubbo\n\n2. macOS 11.5.2/iOS 14.7.1 Kernel Race Condition PoC\nhttps://gist.github.com/infernalheaven/f2f6a2fa2ec1b2252955fb8078211da1 \n\n\nRed Team Tactics\n1. Tool to help on web application firewall bypasses\ud83d\ude00\nhttps://github.com/RedSection/pFuzz\n2. A tool for generating multiple types of NTLMv2 hash theft files\ud83d\ude01\nhttps://github.com/Greenwolf/ntlm_theft\n\nThreat Research\nLocal File Read via Stored XSS in The Opera Browser\nhttps://blogs.opera.com/security/2021/09/bug-bounty-guest-post-local-file-read-via-stored-xss-in-the-opera-browser.", "creation_timestamp": "2026-09-02T01:04:25.162261Z"}, {"uuid": "b157b9b7-c11a-4b66-8789-77e9fccdb68a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-37579", "type": "published-proof-of-concept", "source": "https://t.me/cissp/4404", "content": "Offensive security\n1. Obfuscating Malicious, Macro-Enabled Word Docs\nhttps://depthsecurity.com/blog/obfuscating-malicious-macro-enabled-word-docs\n2. Pentest Notes:  Google Cloud Edition\nhttps://infosecwriteups.com/pentest-notes-google-cloud-edition-2e138bb0f504\n\nexploit\n1. CVE-2021-37579:\nPre-Auth Unsafe Java Deserialization in Apace Dubbo\nhttps://securitylab.github.com/advisories/GHSL-2021-097-apache-dubbo\n\n2. macOS 11.5.2/iOS 14.7.1 Kernel Race Condition PoC\nhttps://gist.github.com/infernalheaven/f2f6a2fa2ec1b2252955fb8078211da1 \n\n\nRed Team Tactics\n1. Tool to help on web application firewall bypasses\ud83d\ude00\nhttps://github.com/RedSection/pFuzz\n2. A tool for generating multiple types of NTLMv2 hash theft files\ud83d\ude01\nhttps://github.com/Greenwolf/ntlm_theft\n\nThreat Research\nLocal File Read via Stored XSS in The Opera Browser\nhttps://blogs.opera.com/security/2021/09/bug-bounty-guest-post-local-file-read-via-stored-xss-in-the-opera-browser.", "creation_timestamp": "2026-09-10T19:00:05.402910Z"}, {"uuid": "0c7c00a2-c825-424c-b84c-372c8478af35", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-37579", "type": "published-proof-of-concept", "source": "https://t.me/cissp/4404", "content": "Offensive security\n1. Obfuscating Malicious, Macro-Enabled Word Docs\nhttps://depthsecurity.com/blog/obfuscating-malicious-macro-enabled-word-docs\n2. Pentest Notes:  Google Cloud Edition\nhttps://infosecwriteups.com/pentest-notes-google-cloud-edition-2e138bb0f504\n\nexploit\n1. CVE-2021-37579:\nPre-Auth Unsafe Java Deserialization in Apace Dubbo\nhttps://securitylab.github.com/advisories/GHSL-2021-097-apache-dubbo\n\n2. macOS 11.5.2/iOS 14.7.1 Kernel Race Condition PoC\nhttps://gist.github.com/infernalheaven/f2f6a2fa2ec1b2252955fb8078211da1 \n\n\nRed Team Tactics\n1. Tool to help on web application firewall bypasses\ud83d\ude00\nhttps://github.com/RedSection/pFuzz\n2. A tool for generating multiple types of NTLMv2 hash theft files\ud83d\ude01\nhttps://github.com/Greenwolf/ntlm_theft\n\nThreat Research\nLocal File Read via Stored XSS in The Opera Browser\nhttps://blogs.opera.com/security/2021/09/bug-bounty-guest-post-local-file-read-via-stored-xss-in-the-opera-browser.", "creation_timestamp": "2026-09-11T00:00:30.008084Z"}]}