{"vulnerability": "CVE-2021-3711", "sightings": [{"uuid": "9e7c4f5b-bbbf-4745-b0e1-f5c0f3c4fa16", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-37116", "type": "seen", "source": "https://t.me/cibsecurity/34889", "content": "\u203c CVE-2021-37116 \u203c\n\nPCManager has a Weaknesses Introduced During Design vulnerability .Successful exploitation of this vulnerability may cause that the PIN of the subscriber is changed.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2022-01-04T00:38:38.000000Z"}, {"uuid": "5b728fef-b912-415f-8285-633a56980e09", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-3711", "type": "seen", "source": "https://t.me/cibsecurity/27773", "content": "\u203c CVE-2021-3711 \u203c\n\nIn order to decrypt SM2 encrypted data an application is expected to call the API function EVP_PKEY_decrypt(). Typically an application will call this function twice. The first time, on entry, the \"out\" parameter can be NULL and, on exit, the \"outlen\" parameter is populated with the buffer size required to hold the decrypted plaintext. The application can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() again, but this time passing a non-NULL value for the \"out\" parameter. A bug in the implementation of the SM2 decryption code means that the calculation of the buffer size required to hold the plaintext returned by the first call to EVP_PKEY_decrypt() can be smaller than the actual size required by the second call. This can lead to a buffer overflow when EVP_PKEY_decrypt() is called by the application a second time with a buffer that is too small. A malicious attacker who is able present SM2 content for decryption to an application could cause attacker chosen data to overflow the buffer by up to a maximum of 62 bytes altering the contents of other data held after the buffer, possibly changing application behaviour or causing the application to crash. The location of the buffer is application dependent but is typically heap allocated. Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k).\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-08-24T18:23:26.000000Z"}, {"uuid": "357945a7-3dc6-4103-b565-2de1d74ec7e2", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-3711", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/4203", "content": "#Analytics\nTop 10 Most Used Vulns of the Month (Aug 1-31)\nCVE-2021-1675 - Print Spooler EoP\nhttps://t.me/cybersecuritytechnologies/3723\nCVE-2021-31956 - Win NTFS EoP\nhttps://t.me/cybersecuritytechnologies/4110\nCVE-2021-36958 - Print Spooler RCE\nhttps://mobile.twitter.com/gentilkiwi/status/1416429860566847490?s=20\nCVE-2021-39137 - A consensus-vuln in go-eth\nCVE-2021-22937 - Pulse ConnSecure RCE\nhttps://t.me/cybersecuritytechnologies/4044\nCVE-2021-34473 - Pre-auth Path Confusion\nhttps://www.zerodayinitiative.com/blog/2021/8/17/from-pwn2own-2021-a-new-attack-surface-on-microsoft-exchange-proxyshell\nCVE-2021-21225 - Vuln in V8's Array.prototype.concat\nhttps://t.me/cybersecuritytechnologies/4090\nCVE-2021-20090 - Path traversal in Buffalo routers\nhttps://t.me/cybersecuritytechnologies/3986\nCVE-2021-26084 - Confluence Server Webwork OGNL Inj\nhttps://t.me/cybersecuritytechnologies/4202\nCVE-2021-3711 - Vulns in OpenSSL\nhttps://nakedsecurity.sophos.com/2021/08/27/big-bad-decryption-bug-in-openssl-but-no-cause-for-alarm", "creation_timestamp": "2021-09-02T11:05:07.000000Z"}, {"uuid": "97d69b05-359e-4024-8720-bfc1abbf6a08", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-3711", "type": "seen", "source": "https://t.me/true_secator/2302", "content": "\u200b\u200bMicrosoft \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0438 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\u043e\u0442\u043a\u0430\u0437\u0430 \u0432 \u0434\u043e\u0441\u0442\u0443\u043f\u0435. \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u044f (DoS).\n \n\u0414\u0440\u0443\u0433\u0438\u0435 \u0432\u0430\u0436\u043d\u044b\u0435 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0442 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u043e\u0448\u0438\u0431\u043e\u043a \u0432 Chakra Scripting Engine (CVE-2021-42279), Microsoft Defender (CVE-2021-42298), Microsoft Virtual Machine Bus (CVE-2021-26443), RDP (CVE-2021-38631 \u0438 CVE-2021-41371), \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430\u0445 3D-\u043f\u0440\u043e\u0441\u043c\u043e\u0442\u0440\u0430 (CVE-2021-43208 \u0438 CVE-2021-43209).\n \n\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f Microsoft Patch Tuesday \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0442 \u0438 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0435\u0440\u044c\u0435\u0437\u043d\u044b\u0445 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043a\u043e\u0432, \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u044e\u0449\u0438\u0445 Azure, Microsoft Edge, Visual Studio \u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 Windows.\n \n\u041a\u0440\u043e\u043c\u0435 \u0442\u043e\u0433\u043e, \u0432 Patch Tuesday \u0442\u0430\u043a\u0436\u0435 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u044b \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u0442 Adobe, \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0435 \u043a\u0430\u043a \u043c\u0438\u043d\u0438\u043c\u0443\u043c 4 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043a\u0430 \u0432 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430, \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d \u0441\u0430\u043c\u044b\u0439 \u0441\u0435\u0440\u044c\u0435\u0437\u043d\u044b\u0439 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u043a CVE-2021-39858 \u0432 RoboHelp Server (RHS2020.0.1 \u0438 \u0431\u043e\u043b\u0435\u0435 \u0440\u0430\u043d\u043d\u0438\u0435 \u0432\u0435\u0440\u0441\u0438\u0438 \u043f\u043e\u0434 Windows) \u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u043b \u043e\u0446\u0435\u043d\u043a\u0443 \u00ab\u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439\u00bb, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u043f\u043e\u0434\u0432\u0435\u0440\u0433\u0430\u0435\u0442 \u043a\u043e\u0440\u043f\u043e\u0440\u0430\u0442\u0438\u0432\u043d\u0443\u044e \u0441\u0440\u0435\u0434\u0443 \u0430\u0442\u0430\u043a\u0430\u043c \u0441 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435\u043c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u043e\u0433\u043e \u043a\u043e\u0434\u0430.\n \n\u041f\u043e\u043b\u043d\u044b\u0439 \u043f\u0435\u0440\u0435\u0447\u0435\u043d\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0438 \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u044b\u0445 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u043e \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u043c \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u043c \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0437\u0430 \u043d\u043e\u044f\u0431\u0440\u044c 2021 \u0433\u043e\u0434\u0430 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0437\u0434\u0435\u0441\u044c.\n \n\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0434\u043b\u044f Mac \u043f\u043e\u043a\u0430 \u0435\u0449\u0435 \u043d\u0435 \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u044b, \u0434\u0430\u0436\u0435 \u043d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u0442\u043e, \u0447\u0442\u043e \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c Excel \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u0435\u0442 Microsoft Office \u0434\u043b\u044f macOS.\n \n\u0420\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u0435\u043c \u0432\u043b\u0430\u0434\u0435\u043b\u044c\u0446\u0430\u043c Windows \u0431\u0435\u0437 \u043f\u0440\u043e\u043c\u0435\u0434\u043b\u0435\u043d\u0438\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u044c \u0432\u0441\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f, \u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f\u043c macOS \u0443\u043f\u043e\u0432\u0430\u0442\u044c \u043d\u0430 \u0443\u0434\u0430\u0447\u0443 \u0438 \u0442\u0435\u0440\u043f\u0435\u043d\u0438\u0435.", "creation_timestamp": "2021-11-10T13:12:56.000000Z"}, {"uuid": "f1f42ef4-6409-4b45-addd-3eeaff3959eb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-3711", "type": "seen", "source": "MISP/075435fa-eb87-4bb2-af99-388bc629ba10", "content": "", "creation_timestamp": "2024-11-14T06:09:50.000000Z"}, {"uuid": "ba1a7477-686c-4b97-929c-fae9bd469b4c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-3711", "type": "seen", "source": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-21", "content": "", "creation_timestamp": "2025-08-14T10:00:00.000000Z"}, {"uuid": "8a76f1ee-6a9b-4a7d-b835-def4c5f301ae", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-3711", "type": "seen", "source": "https://t.me/ctinow/40429", "content": "Internet Bug Bounty: CVE-2021-3711: SM2 decrypt buffer overflow\n\nhttps://ift.tt/3AM0Vdr", "creation_timestamp": "2021-09-27T20:56:45.000000Z"}, {"uuid": "18da7954-f4d4-41ff-87b4-efe030bebbca", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-3711", "type": "seen", "source": "https://t.me/ctinow/38926", "content": "CVE-2021-3711 in OpenSSL can allow to change an application\u2019s behavior\n\nhttps://ift.tt/3sKa431", "creation_timestamp": "2021-08-24T23:51:07.000000Z"}, {"uuid": "0cd708c3-e6ac-41b3-898e-543095d5110f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-37111", "type": "seen", "source": "https://t.me/cibsecurity/34879", "content": "\u203c CVE-2021-37111 \u203c\n\nThere is a Memory leakage vulnerability in Smartphone.Successful exploitation of this vulnerability may cause memory exhaustion.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2022-01-04T00:38:25.000000Z"}, {"uuid": "8096d348-67d3-4178-907b-c68b72285336", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-3711", "type": "seen", "source": "https://t.me/CyberSecurityTechnologies/4210", "content": "#Threat_Research\n1. Unknown Actor Using CLFS Log Files for Stealth\nhttps://www.fireeye.com/blog/threat-research/2021/09/unknown-actor-using-clfs-log-files-for-stealth.html\n2. OpenSSL Vulnerability Analysis (CVE-2021-3711)\nhttps://mp.weixin.qq.com/s/P2aduaUS3s8K7I-cDVJNgA\n3. Now Patched Vulnerability in WhatsApp could have led to data exposure of users\nhttps://research.checkpoint.com/2021/now-patched-vulnerability-in-whatsapp-could-have-led-to-data-exposure-of-users", "creation_timestamp": "2021-09-03T11:59:41.000000Z"}]}