{"vulnerability": "cve-2021-36936", "sightings": [{"uuid": "fee96c7f-71eb-4060-9589-8102134d4bae", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2021-36936", "type": "seen", "source": "https://www.govcert.gov.hk/en/alerts_detail.php?id=628", "content": "", "creation_timestamp": "2021-08-11T04:00:00.000000Z"}, {"uuid": "df66c9c2-7d29-4a7b-8e70-411b05b22575", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-36936", "type": "seen", "source": "https://t.me/true_secator/1993", "content": "\u200b\u200b\u00ab\u0418\u043c\u043f\u0435\u0440\u0438\u044f \u043d\u0430\u043d\u043e\u0441\u0438\u0442 \u043e\u0442\u0432\u0435\u0442\u043d\u044b\u0439 \u0443\u0434\u0430\u0440\u00bb - \u0442\u0430\u043a \u043c\u044b \u043e\u0431\u043e\u0437\u043d\u0430\u0447\u0438\u043c, \u043f\u043e\u0436\u0430\u043b\u0443\u0439, \u044d\u043f\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043f\u0430\u0442\u0447 \u043e\u0442 Microsoft, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442 \u0432 \u043e\u0431\u0449\u0435\u0439 \u0441\u043b\u043e\u0436\u043d\u043e\u0441\u0442\u0438 44 CVE, \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 7 - \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435, 3 - zeroday, 37 - \u0432\u0430\u0436\u043d\u044b\u0435, 13 - \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430, 8 - \u043a\u0430\u0441\u0430\u044e\u0442\u0441\u044f \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438, \u0430 \u0433\u043b\u0430\u0432\u043d\u043e\u0435 - \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u043a\u0430\u043a \u0431\u044b \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f PrintNightmare \u0438 PetitPotam.\n\n\u0412 \u043e\u0431\u0449\u0435\u043c, \u0431\u0430\u0433\u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0432 NET Core, Visual Studio, ASP.NET Core, Azure, \u0426\u0435\u043d\u0442\u0440 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f Windows,  \u0434\u0438\u0441\u043f\u0435\u0442\u0447\u0435\u0440 \u043e\u0447\u0435\u0440\u0435\u0434\u0438 \u043f\u0435\u0447\u0430\u0442\u0438 Windows, Windows Media, \u0417\u0430\u0449\u0438\u0442\u043d\u0438\u043a Windows, \u043a\u043b\u0438\u0435\u043d\u0442 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0440\u0430\u0431\u043e\u0447\u0435\u0433\u043e \u0441\u0442\u043e\u043b\u0430, Microsoft Dynamics, Microsoft Edge, Microsoft Office, Microsoft Office SharePoint \u0438 \u0434\u0440.\n\n\u041a \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u043c \u043e\u0448\u0438\u0431\u043a\u0430\u043c \u043d\u0443\u043b\u0435\u0432\u043e\u0433\u043e \u0434\u043d\u044f \u043e\u0442\u043d\u043e\u0441\u044f\u0442\u0441\u044f:\n \u2022 CVE-2021-36948: \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435\u043c  \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0439 Windows Update Medic;\n \u2022 CVE-2021-36942: \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u0434\u043c\u0435\u043d\u044b Windows LSA;\n \u2022 CVE-2021-36936: \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438  \u0434\u0438\u0441\u043f\u0435\u0442\u0447\u0435\u0440\u0430 \u043e\u0447\u0435\u0440\u0435\u0434\u0438 \u043f\u0435\u0447\u0430\u0442\u0438 Windows.\n\n\u041f\u0440\u0438 \u044d\u0442\u043e\u043c \u0438\u0437 \u043d\u0438\u0445, \u0441\u043e\u0433\u043b\u0430\u0441\u043d\u043e \u0434\u0430\u043d\u043d\u044b\u043c Microsoft, \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u043e\u0432\u0430\u043b\u0430\u0441\u044c \u0432 \u0440\u0435\u0430\u043b\u0435 \u043b\u0438\u0448\u044c CVE-2021-36948, \u043e\u0434\u043d\u0430\u043a\u043e \u043a\u0435\u043c \u0438 \u043a\u0430\u043a \u0438\u0441\u0442\u043e\u0440\u0438\u044f \u0443\u043c\u0430\u043b\u0447\u0438\u0432\u0430\u0435\u0442. \u041c\u044b \u043f\u043e\u043b\u0430\u0433\u0430\u0435\u043c, \u0447\u0442\u043e \u0437\u0430 \u043d\u0435\u0439 \u043c\u043e\u0436\u0435\u0442 \u0441\u043a\u0440\u044b\u0432\u0430\u0442\u044c\u0441\u044f \u043d\u043e\u044f\u0431\u0440\u044c\u0441\u043a\u0430\u044f 2020-\u0433\u043e\u0434\u0430 CVE-2020-17070, \u0430 \u0440\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0430 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0441\u0432\u043e\u0435\u043e\u0431\u0440\u0430\u0437\u043d\u044b\u043c \u0444\u043e\u043a\u0443\u0441\u043e\u043c \u0434\u043b\u044f \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u043e\u0432.\n\n\u041d\u0430 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0435 \u0436\u0435 \u0441\u0440\u0435\u0434\u0438 \u043f\u0440\u043e\u0447\u0438\u0445 \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u0443\u0434\u0435\u043b\u0438\u0442\u044c \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435 CVE-2021-26424, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043d\u0435\u043f\u043e\u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u043a\u0430\u0441\u0430\u0435\u0442\u0441\u044f Windows TCP/IP Remote Code Execution \u0432 \u0432\u0435\u0441\u044c\u043c\u0430 \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u044b\u0445 Windows 7\u201310 \u0438 Windows Server 2008\u20132019. \u041e\u0448\u0438\u0431\u043a\u0430, \u0441 \u0431\u043e\u043b\u044c\u0448\u043e\u0439 \u0434\u043e\u043b\u0435\u0439 \u0432\u0435\u0440\u043e\u044f\u0442\u043d\u043e\u0441\u0442\u0438, \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0430 \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0430\u043c\u0438 \u0432 \u0432\u0438\u0434\u0443 \u0435\u0435 \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0442\u0440\u0438\u0432\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u043a\u0430\u043a \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440 CVE-2020-16898, \u044d\u043a\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u043e\u0432\u0430\u0432\u0448\u0430\u044f\u0441\u044f \u0432\u0434\u043e\u043b\u044c \u0438 \u043f\u043e\u043f\u0435\u0440\u0435\u043a \u0432 \u043f\u0440\u043e\u0448\u043b\u043e\u043c \u0433\u043e\u0434\u0443.\n\n\u0410\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u043d\u043e\u0435 \u0437\u0430\u043c\u0435\u0447\u0430\u043d\u0438\u0435 \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0441\u044f \u0438 \u043a CVE-2021-26432, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043f\u0430\u0442\u0447 \u0434\u043b\u044f \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 NFS ONCRPC XDR \u0441\u043b\u0443\u0436\u0431 Windows, \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f  \u043e\u0448\u0438\u0431\u043a\u0438 \u043d\u0435 \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u043d\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438, \u043d\u0438 \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u0441 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u043c.\n\n\u041c\u043e\u0436\u043d\u043e \u043e\u0442\u043a\u0430\u0437\u044b\u0432\u0430\u0442\u044c\u0441\u044f \u043e\u0442 \u0444\u0438\u043b\u044c\u0442\u0440\u043e\u0432 NETSH \u0432 \u0432\u043e\u043f\u0440\u043e\u0441\u0435 \u043f\u0440\u043e\u0442\u0438\u0432\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u0430\u0442\u0430\u043a\u0430\u043c PetitPotam, \u043f\u0430\u0442\u0447 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043d\u0435\u0439\u0442\u0440\u0430\u043b\u0438\u0437\u0443\u0435\u0442 \u0432\u0435\u043a\u0442\u043e\u0440 \u044d\u0442\u043e\u0439 \u0430\u0442\u0430\u043a\u0438, \u0431\u043b\u043e\u043a\u0438\u0440\u0443\u044f \u0432\u044b\u0437\u043e\u0432\u044b \u0443\u044f\u0437\u0432\u0438\u043c\u044b\u0445 API OpenEncryptedFileRawA \u0438 OpenEncryptedFileRawW \u0447\u0435\u0440\u0435\u0437 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 LSARPC. \u041d\u043e \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u0441 \u044d\u0442\u0438\u043c \u0438 \u0431\u043b\u043e\u043a\u0438\u0440\u0443\u0435\u0442 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0435 \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0444\u0443\u043d\u043a\u0446\u0438\u044e EFS API OpenEncryptedFileRaw (A / W) \u0432 Windows 7 \u0438 Windows Server 2008, \u0434\u043b\u044f \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u043e\u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0443 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0435 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438. \u0412\u0441\u0435 \u0434\u043b\u044f \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432, \u043a\u0430\u043a \u0433\u043e\u0432\u043e\u0440\u0438\u0442\u0441\u044f.\n\n\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c PrintNightmare \u0442\u0430\u043a\u0436\u0435 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0432\u0432\u043e\u0434\u0430 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f \u043e\u0442 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u043f\u0440\u0430\u0432 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430 \u0434\u043b\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u043f\u0440\u0438\u043d\u0442\u0435\u0440\u0430 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0423\u043a\u0430\u0437\u0430\u0442\u044c \u0438 \u043d\u0430\u043f\u0435\u0447\u0430\u0442\u0430\u0442\u044c.\n\n\u0412\u0441\u0435 \u0431\u044b \u043d\u0438\u0447\u0435\u0433\u043e, \u043d\u043e!\n\n\u041a \u0441\u043e\u0436\u0430\u043b\u0435\u043d\u0438\u044e, \u0432\u0441\u043a\u043e\u0440\u0435 \u043f\u043e\u0441\u043b\u0435 \u0442\u043e\u0433\u043e, \u043a\u0430\u043a Microsoft \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0430 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438, \u043d\u0435\u0431\u0435\u0437\u044b\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0439 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c \nBenjamin Delpy \u0437\u0430\u0431\u043e\u043c\u0431\u0438\u043b, \u0447\u0442\u043e \u0435\u0433\u043e \u043f\u0430\u043a\u0435\u0442\u043d\u044b\u0439 \u0434\u0440\u0430\u0439\u0432\u0435\u0440 \u043f\u0435\u0447\u0430\u0442\u0438 PoC, \u043f\u043e-\u043f\u0440\u0435\u0436\u043d\u0435\u043c\u0443, \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c Still SYSTEM from standard user\u2026\n\n\u041f\u043e\u0445\u043e\u0436\u0435, \u043e\u0442\u0432\u0435\u0442\u043d\u044b\u0439 \u00ab\u0443\u0434\u0430\u0440 \u0438\u043c\u043f\u0435\u0440\u0438\u0438\u00bb \u043d\u0435\u043c\u043d\u043e\u0433\u043e \u043e\u0442\u0440\u0435\u043a\u043e\u0448\u0435\u0442\u0438\u043b, \u0432 \u043e\u0431\u0440\u0430\u0442\u043d\u0443\u044e \u0441\u0442\u043e\u0440\u043e\u043d\u0443. \u042d\u0445, \u0430 \u043c\u044b \u0442\u0430\u043a \u043d\u0430\u0434\u0435\u044f\u043b\u0438\u0441\u044c.", "creation_timestamp": "2021-08-11T18:46:50.000000Z"}, {"uuid": "4fa8e27a-c7b2-485c-8e2c-b665e05b0852", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-36936", "type": "seen", "source": "https://t.me/hacking_Attack/19794", "content": "Black Hat Ethical Hacking\nActively Exploited Windows Zero-Day Gets a Patch\n\nhttps://www.blackhatethicalhacking.com/wp-content/uploads/2017/11/black-hat-locks-and-electronics.jpg Actively Exploited Windows Zero-Day Gets a PatchPost Views: 60 \nReading Time: 2 Minutes\nMicrosoft has patched 51 security vulnerabilities in its scheduled August Patch Tuesday update, including seven critical bugs, two issues that were publicly disclosed but unpatched until now, and one that\u2019s listed as a zero-day that has been exploited in the wild.\nMicrosoft\u2019s August 2021 Patch Tuesday addressed a smaller set of bugs than usual, including more Print Spooler problems, a zero-day and seven critical vulnerabilities.\nOf note, there are 17 elevation-of-privilege (EoP) vulnerabilities, 13 remote code-execution (RCE) issues, eight information-disclosure flaws and two denial-of-service (DoS) bugs.\n\nThe update also includes patches for three more Print Spooler bugs, familiar from the PrintNightmare saga.\n\n\u201cFortunately, it was a lighter month than usual,\u201d said Eric Feldman, senior product marketing manager at Automox, in a Patch Tuesday analysis\u00a0from the vendor. \u201cThis represents a 56 percent reduction in overall vulnerabilities from July, and 33 percent fewer vulnerabilities on average for each month so far this year. We have also seen a similar reduction in critical vulnerabilities this month, with 30 percent less compared to the monthly average.\u201d Windows Critical Security VulnerabilitiesThe seven critical bugs addressed in August\u00a0are as follows:\n\n* CVE-2021-26424 \u2013 Windows TCP/IP RCE Vulnerability\n* CVE-2021-26432 \u2013 Windows Services for NFS ONCRPC XDR Driver RCE Vulnerability\n* CVE-2021-34480 \u2013 Scripting Engine Memory Corruption Vulnerability\n* CVE-2021-34530 \u2013 Windows Graphics Component RCE Vulnerability\n* CVE-2021-34534 \u2013 Windows MSHTML Platform RCE Vulnerability\n* CVE-2021-34535 \u2013 Remote Desktop Client RCE Vulnerability\n* CVE-2021-36936 \u2013 Windows Print Spooler RCE Vulnerability\nSee Also: Auth Bypass Bug Exploited, Affecting Millions of Routers The bug tracked as CVE-2021-26424\u00a0exists in the TCP/IP protocol stack identified in Windows 7 and newer Microsoft operating systems, including servers.\n\n\u201cDespite its CVSS rating of 9.9, this may prove to be a trivial bug, but it\u2019s still fascinating,\u201d said Dustin Childs of Trend Micro\u2019s Zero Day Initiative (ZDI) in his Tuesday analysis. \u201cAn attacker on a guest Hyper-V OS could execute code on the host Hyper-V server by sending a specially crafted IPv6 ping. This keeps it out of the wormable category. Still, a successful attack would allow the guest OS to completely take over the Hyper-V host. While not wormable, it\u2019s still cool to see new bugs in new scenarios being found in protocols that have been around for years.\u201d\n\nThe next bug, CVE-2021-26432\u00a0in Windows Services, is more likely to be exploited given its low complexity status, according to Microsoft\u2019s advisory; it doesn\u2019t require privileges or user interaction to exploit, but Microsoft offered no further details.\n\n\u201cThis may fall into the \u2018wormable\u2019 category, at least between servers with NFS installed, especially since the open network computing remote procedure call (ONCRPC) consists of an External Data Representation (XDR) runtime built on the Winsock Kernel (WSK) interface,\u201d Childs said. \u201cThat certainly sounds like elevated code on a listening network service. Don\u2019t ignore this patch.\u201d\n\nAleks Haugom, product marketing manager at Automox, added, \u201cExploitation results in total loss of confidentiality across all devices managed by the same security authority. Furthermore, attackers can utilize it for denial-of-service attacks or to maliciously modify files. So far, no further details have been divulged by Mic[...]\n\n___________________________ \n@hacking_Attack\n@Hacking_Video", "creation_timestamp": "2026-09-01T20:02:29.448562Z"}, {"uuid": "e1adae47-383c-4b4f-994b-b4e627b3b579", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-36936", "type": "seen", "source": "https://t.me/hacking_Attack/19796", "content": "\u201cThis bug is listed as publicly known, but it\u2019s not clear if this bug is a variant of PrintNightmare or a unique vulnerability all on its own. There are quite a few print-spooler bugs to keep track of. Either way, attackers can use this to execute code on affected systems. Microsoft does state low privileges are required, so that should put this in the non-wormable category, but you should still prioritize testing and deployment of this critical-rated bug.\u201d\n\nThe critical vulnerability is just one of three Print Spooler issues in the August Patch Tuesday release.\n\n\u201cThe specter of the PrintNightmare continues to haunt this patch Tuesday with three more print spooler vulnerabilities, CVE-2021-36947, CVE-2021-36936 and CVE-2021-34481,\u201d said Breen. \u201cAll three are listed as RCE over the network, requiring a low level of access, similar to PrintNightmare. Microsoft has marked these as \u2018Exploitation More Likely\u2019 which, if the previous speed of POC code being published is anything to go by, is certainly true.\u201d RCE Zero-Day in Windows Update Medic ServiceThe actively exploited bug is tracked as CVE-2021-36948\u00a0and is rated as important; it could pave the way for RCE via the Windows Update Medic Service in Windows 10 and Server 2019 and newer operating systems.\n\n\u201cUpdate Medic is a new service that allows users to repair Windows Update components from a damaged state such that the device can continue to receive updates,\u201d Automox\u2019 Jay Goodman explained. \u201cThe exploit is both low complexity and can be exploited without user interaction, making this an easy vulnerability to include in an adversary\u2019s toolbox.\u201d\n\nImmersive\u2019s Breen added, \u201cCVE-2021-36948 is a privilege-escalation vulnerability \u2013 the cornerstone of modern intrusions as they allow attackers the level of access to do things like hide their tracks and create user accounts.\u00a0 In the case of ransomware attacks, they have also been used to ensure maximum damage.\u201d\n\nThough the bug is being reported as being exploited in the wild by Microsoft, activity appears to remain limited or targeted: \u201cWe have seen no evidence of it at Kenna Security at this time,\u201d Jerry Gamblin, director of security research at Kenna Security (now part of Cisco) told Threatpost. Publicly Known Windows LSA Spoofing BugThe second publicly known bug (after the Print Spooler issue covered earlier) is tracked as CVE-2021-36942, and it\u2019s an important-rated Windows LSA (Local Security Authority) spoofing vulnerability.\n\n\u201cIt fixes a flaw that could be used to steal NTLM hashes from a domain controller or other vulnerable host,\u201d Immersive\u2019s Breen said. \u201cThese types of attacks are well known for lateral movement and privilege escalation, as has been demonstrated recently by a new exploit called PetitPotam. It is a post-intrusion exploit \u2013 further down the attack chain \u2013 but still a useful tool for attackers.\u201d\n\nChilds offered a bit of context around the bug.\n\n\u201cMicrosoft released this patch to further protect against NTLM relay attacks by issuing this update to block the LSARPC interface,\u201d he said. \u201cThis will impact some systems, notably Windows Server 2008 SP2, that use the EFS API OpenEncryptedFileRawA function. You should apply this to your Domain Controllers first and follow the additional guidance in ADV210003\u00a0and KB5005413. This has been an ongoing issue since 2009, and, likely, this isn\u2019t the last we\u2019ll hear of this persistent issue.\u201d\n\nMicrosoft\u2019s next Patch Tuesday will fall on September 14.\nSource: threatpost.com (Click Link)Recent News* https://www.blackhatethicalhacking.com/wp-content/uploads/2021/08/botnet-90x90.jpg Auth Bypass Bug Exploited, Affecting Millions of Routers1 day ago\n* https://www.blackhatethicalhacking.com/wp-content/uploads/2021/08/cisco-patch-90x90.png Critical Cisco Bug in VPN Routers Allows Remote Takeover2 days ago\n* https://www.blackhatethicalhacking.com/wp-content/uploads/2021/08/delete-telegram-message-e1628177080885[...]\n\n___________________________ \n@hacking_Attack\n@Hacking_Video", "creation_timestamp": "2026-09-01T20:02:28.597933Z"}, {"uuid": "7ca74b01-cc6d-4178-8c3c-81cdeb034ca5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-36936", "type": "seen", "source": "https://t.me/hacking_Attack/19795", "content": "rosoft or the security researcher (Liubenjin from Codesafe Team of Legendsec at Qi\u2019anxin Group) that discovered this vulnerability. Given the broad potential impact, its label \u2018Exploitation More Likely\u2019 and apparent secrecy, patching should be completed ASAP.\u201d\n\nMeanwhile, the memory-corruption bug (CVE-2021-34480) arises from how the scripting engine handles objects in memory, and it also allows RCE. Using a web-based attack or a malicious file, such as a malicious landing page or phishing email, attackers can use this vulnerability to take control of an affected system, install programs, view or change data, or create new user accounts with full user rights.\n\n\u201cCVE-2021-34480 should also be a priority,\u201d Kevin Breen, director of cyber-threat research at Immersive Labs, told Threatpost. \u201cIt is a low score in terms of CVSS, coming in at 6.8, but has been marked by Microsoft as \u2018Exploitation More Likely\u2019 because it is the type of attack commonly used to increase the success rate of spear phishing attacks to gain network access.\u00a0 Simple, but effective.\u201d\nSee Also: Offensive Security Tool: Mimikatz The Windows Graphic Component bug (CVE-2021-34530) allows attackers to remotely execute malicious code in the context of the current user, according to Microsoft \u2013 if they can social-engineer a target into opening a specially crafted file.\n\nAnother bug exists in the Windows MSHTML platform, also known as Trident (CVE-2021-34534). Trident is the rendering engine (mshtml.dll) used by Internet Explorer. The bug affects many Windows 10 versions (1607, 1809,1909, 2004, 20H2, 21H1) as well as Windows Server 2016 and 2019.\n\nBut while it potentially affects a large number of users, exploitation is not trivial.\n\n\u201cTo exploit, a threat actor would need to pull off a highly complex attack with user interaction \u2013 still entirely possible with the sophisticated attackers of today,\u201d said Peter Pflaster, technical product marketing manager at Automox.\n\nThe bug tracked as CVE-2021-34535\u00a0impacts the Microsoft Remote Desktop Client, Microsoft\u2019s nearly ubiquitous utility for connecting to remote PCs.\n\n\u201cWith today\u2019s highly dispersed workforce, CVE-2021-34535, an RCE vulnerability in Remote Desktop Clients, should be a priority patch,\u201d said Breen. \u201cAttackers increasingly use RDP access as the tip of the spear to gain network access, often combining it with privilege escalation to move laterally.\u00a0 These can be powerful as, depending on the method, it may allow the attacker to authenticate in the network in the same way a user would, making detection difficult.\u201d\n\nIt\u2019s not as dangerous of a bug as BlueKeep,\u00a0according to Childs, which also affected RDP.\n\n\u201cBefore you start having flashbacks to BlueKeep, this bug affects the RDP client and not the RDP server,\u201d he said. \u201cHowever, the CVSS 9.9 bug is nothing to ignore. An attacker can take over a system if they can convince an affected RDP client to connect to an RDP server they control. On Hyper-V servers, a malicious program running in a guest VM could trigger guest-to-host RCE by exploiting this vulnerability in the Hyper-V Viewer. This is the more likely scenario and the reason you should test and deploy this patch quickly.\u201d See Also: Hacking Stories: Andrian Lamo \u2013 The \u2018homeless\u2019 HackerWindows Print Spooler Bugs \u2013 AgainThe final critical bug is CVE-2021-36936, a Windows Print Spooler RCE bug that\u2019s listed as publicly known.\n\nPrint Spooler made headlines last month, when Microsoft patched what it thought was a minor elevation-of-privilege vulnerability in the service (CVE-2021-1675). But the listing was updated later in the week, after researchers from Tencent and NSFOCUS TIANJI Lab figured out it could be used for RCE \u2013 requiring a new patch.\n\nIt also disclosed a second bug, similar to PrintNightmare (CVE-2021-34527); and a third, an EoP issue\u00a0(CVE-2021-34481).\n\n\u201cAnother month, another remote code-execution bug in the Print Spooler,\u201d said ZDI\u2019s Childs. [...]\n\n___________________________ \n@hacking_Attack\n@Hacking_Video", "creation_timestamp": "2026-09-01T20:02:28.887344Z"}, {"uuid": "9290cc50-ea9a-411d-bd0d-41fea84be5f5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-36936", "type": "seen", "source": "https://t.me/hacking_Attack/19796", "content": "\u201cThis bug is listed as publicly known, but it\u2019s not clear if this bug is a variant of PrintNightmare or a unique vulnerability all on its own. There are quite a few print-spooler bugs to keep track of. Either way, attackers can use this to execute code on affected systems. Microsoft does state low privileges are required, so that should put this in the non-wormable category, but you should still prioritize testing and deployment of this critical-rated bug.\u201d\n\nThe critical vulnerability is just one of three Print Spooler issues in the August Patch Tuesday release.\n\n\u201cThe specter of the PrintNightmare continues to haunt this patch Tuesday with three more print spooler vulnerabilities, CVE-2021-36947, CVE-2021-36936 and CVE-2021-34481,\u201d said Breen. \u201cAll three are listed as RCE over the network, requiring a low level of access, similar to PrintNightmare. Microsoft has marked these as \u2018Exploitation More Likely\u2019 which, if the previous speed of POC code being published is anything to go by, is certainly true.\u201d RCE Zero-Day in Windows Update Medic ServiceThe actively exploited bug is tracked as CVE-2021-36948\u00a0and is rated as important; it could pave the way for RCE via the Windows Update Medic Service in Windows 10 and Server 2019 and newer operating systems.\n\n\u201cUpdate Medic is a new service that allows users to repair Windows Update components from a damaged state such that the device can continue to receive updates,\u201d Automox\u2019 Jay Goodman explained. \u201cThe exploit is both low complexity and can be exploited without user interaction, making this an easy vulnerability to include in an adversary\u2019s toolbox.\u201d\n\nImmersive\u2019s Breen added, \u201cCVE-2021-36948 is a privilege-escalation vulnerability \u2013 the cornerstone of modern intrusions as they allow attackers the level of access to do things like hide their tracks and create user accounts.\u00a0 In the case of ransomware attacks, they have also been used to ensure maximum damage.\u201d\n\nThough the bug is being reported as being exploited in the wild by Microsoft, activity appears to remain limited or targeted: \u201cWe have seen no evidence of it at Kenna Security at this time,\u201d Jerry Gamblin, director of security research at Kenna Security (now part of Cisco) told Threatpost. Publicly Known Windows LSA Spoofing BugThe second publicly known bug (after the Print Spooler issue covered earlier) is tracked as CVE-2021-36942, and it\u2019s an important-rated Windows LSA (Local Security Authority) spoofing vulnerability.\n\n\u201cIt fixes a flaw that could be used to steal NTLM hashes from a domain controller or other vulnerable host,\u201d Immersive\u2019s Breen said. \u201cThese types of attacks are well known for lateral movement and privilege escalation, as has been demonstrated recently by a new exploit called PetitPotam. It is a post-intrusion exploit \u2013 further down the attack chain \u2013 but still a useful tool for attackers.\u201d\n\nChilds offered a bit of context around the bug.\n\n\u201cMicrosoft released this patch to further protect against NTLM relay attacks by issuing this update to block the LSARPC interface,\u201d he said. \u201cThis will impact some systems, notably Windows Server 2008 SP2, that use the EFS API OpenEncryptedFileRawA function. You should apply this to your Domain Controllers first and follow the additional guidance in ADV210003\u00a0and KB5005413. This has been an ongoing issue since 2009, and, likely, this isn\u2019t the last we\u2019ll hear of this persistent issue.\u201d\n\nMicrosoft\u2019s next Patch Tuesday will fall on September 14.\nSource: threatpost.com (Click Link)Recent News* https://www.blackhatethicalhacking.com/wp-content/uploads/2021/08/botnet-90x90.jpg Auth Bypass Bug Exploited, Affecting Millions of Routers1 day ago\n* https://www.blackhatethicalhacking.com/wp-content/uploads/2021/08/cisco-patch-90x90.png Critical Cisco Bug in VPN Routers Allows Remote Takeover2 days ago\n* https://www.blackhatethicalhacking.com/wp-content/uploads/2021/08/delete-telegram-message-e1628177080885[...]\n\n___________________________ \n@hacking_Attack\n@Hacking_Video", "creation_timestamp": "2026-09-02T01:03:02.103558Z"}, {"uuid": "a05317ab-056d-4397-a9b5-38b1eb9dbc10", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-36936", "type": "seen", "source": "https://t.me/hacking_Attack/19795", "content": "rosoft or the security researcher (Liubenjin from Codesafe Team of Legendsec at Qi\u2019anxin Group) that discovered this vulnerability. Given the broad potential impact, its label \u2018Exploitation More Likely\u2019 and apparent secrecy, patching should be completed ASAP.\u201d\n\nMeanwhile, the memory-corruption bug (CVE-2021-34480) arises from how the scripting engine handles objects in memory, and it also allows RCE. Using a web-based attack or a malicious file, such as a malicious landing page or phishing email, attackers can use this vulnerability to take control of an affected system, install programs, view or change data, or create new user accounts with full user rights.\n\n\u201cCVE-2021-34480 should also be a priority,\u201d Kevin Breen, director of cyber-threat research at Immersive Labs, told Threatpost. \u201cIt is a low score in terms of CVSS, coming in at 6.8, but has been marked by Microsoft as \u2018Exploitation More Likely\u2019 because it is the type of attack commonly used to increase the success rate of spear phishing attacks to gain network access.\u00a0 Simple, but effective.\u201d\nSee Also: Offensive Security Tool: Mimikatz The Windows Graphic Component bug (CVE-2021-34530) allows attackers to remotely execute malicious code in the context of the current user, according to Microsoft \u2013 if they can social-engineer a target into opening a specially crafted file.\n\nAnother bug exists in the Windows MSHTML platform, also known as Trident (CVE-2021-34534). Trident is the rendering engine (mshtml.dll) used by Internet Explorer. The bug affects many Windows 10 versions (1607, 1809,1909, 2004, 20H2, 21H1) as well as Windows Server 2016 and 2019.\n\nBut while it potentially affects a large number of users, exploitation is not trivial.\n\n\u201cTo exploit, a threat actor would need to pull off a highly complex attack with user interaction \u2013 still entirely possible with the sophisticated attackers of today,\u201d said Peter Pflaster, technical product marketing manager at Automox.\n\nThe bug tracked as CVE-2021-34535\u00a0impacts the Microsoft Remote Desktop Client, Microsoft\u2019s nearly ubiquitous utility for connecting to remote PCs.\n\n\u201cWith today\u2019s highly dispersed workforce, CVE-2021-34535, an RCE vulnerability in Remote Desktop Clients, should be a priority patch,\u201d said Breen. \u201cAttackers increasingly use RDP access as the tip of the spear to gain network access, often combining it with privilege escalation to move laterally.\u00a0 These can be powerful as, depending on the method, it may allow the attacker to authenticate in the network in the same way a user would, making detection difficult.\u201d\n\nIt\u2019s not as dangerous of a bug as BlueKeep,\u00a0according to Childs, which also affected RDP.\n\n\u201cBefore you start having flashbacks to BlueKeep, this bug affects the RDP client and not the RDP server,\u201d he said. \u201cHowever, the CVSS 9.9 bug is nothing to ignore. An attacker can take over a system if they can convince an affected RDP client to connect to an RDP server they control. On Hyper-V servers, a malicious program running in a guest VM could trigger guest-to-host RCE by exploiting this vulnerability in the Hyper-V Viewer. This is the more likely scenario and the reason you should test and deploy this patch quickly.\u201d See Also: Hacking Stories: Andrian Lamo \u2013 The \u2018homeless\u2019 HackerWindows Print Spooler Bugs \u2013 AgainThe final critical bug is CVE-2021-36936, a Windows Print Spooler RCE bug that\u2019s listed as publicly known.\n\nPrint Spooler made headlines last month, when Microsoft patched what it thought was a minor elevation-of-privilege vulnerability in the service (CVE-2021-1675). But the listing was updated later in the week, after researchers from Tencent and NSFOCUS TIANJI Lab figured out it could be used for RCE \u2013 requiring a new patch.\n\nIt also disclosed a second bug, similar to PrintNightmare (CVE-2021-34527); and a third, an EoP issue\u00a0(CVE-2021-34481).\n\n\u201cAnother month, another remote code-execution bug in the Print Spooler,\u201d said ZDI\u2019s Childs. [...]\n\n___________________________ \n@hacking_Attack\n@Hacking_Video", "creation_timestamp": "2026-09-02T01:03:02.654781Z"}, {"uuid": "b74e2810-89f0-4d50-95e5-c3b2c46f41cb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-36936", "type": "seen", "source": "https://t.me/hacking_Attack/19794", "content": "Black Hat Ethical Hacking\nActively Exploited Windows Zero-Day Gets a Patch\n\nhttps://www.blackhatethicalhacking.com/wp-content/uploads/2017/11/black-hat-locks-and-electronics.jpg Actively Exploited Windows Zero-Day Gets a PatchPost Views: 60 \nReading Time: 2 Minutes\nMicrosoft has patched 51 security vulnerabilities in its scheduled August Patch Tuesday update, including seven critical bugs, two issues that were publicly disclosed but unpatched until now, and one that\u2019s listed as a zero-day that has been exploited in the wild.\nMicrosoft\u2019s August 2021 Patch Tuesday addressed a smaller set of bugs than usual, including more Print Spooler problems, a zero-day and seven critical vulnerabilities.\nOf note, there are 17 elevation-of-privilege (EoP) vulnerabilities, 13 remote code-execution (RCE) issues, eight information-disclosure flaws and two denial-of-service (DoS) bugs.\n\nThe update also includes patches for three more Print Spooler bugs, familiar from the PrintNightmare saga.\n\n\u201cFortunately, it was a lighter month than usual,\u201d said Eric Feldman, senior product marketing manager at Automox, in a Patch Tuesday analysis\u00a0from the vendor. \u201cThis represents a 56 percent reduction in overall vulnerabilities from July, and 33 percent fewer vulnerabilities on average for each month so far this year. We have also seen a similar reduction in critical vulnerabilities this month, with 30 percent less compared to the monthly average.\u201d Windows Critical Security VulnerabilitiesThe seven critical bugs addressed in August\u00a0are as follows:\n\n* CVE-2021-26424 \u2013 Windows TCP/IP RCE Vulnerability\n* CVE-2021-26432 \u2013 Windows Services for NFS ONCRPC XDR Driver RCE Vulnerability\n* CVE-2021-34480 \u2013 Scripting Engine Memory Corruption Vulnerability\n* CVE-2021-34530 \u2013 Windows Graphics Component RCE Vulnerability\n* CVE-2021-34534 \u2013 Windows MSHTML Platform RCE Vulnerability\n* CVE-2021-34535 \u2013 Remote Desktop Client RCE Vulnerability\n* CVE-2021-36936 \u2013 Windows Print Spooler RCE Vulnerability\nSee Also: Auth Bypass Bug Exploited, Affecting Millions of Routers The bug tracked as CVE-2021-26424\u00a0exists in the TCP/IP protocol stack identified in Windows 7 and newer Microsoft operating systems, including servers.\n\n\u201cDespite its CVSS rating of 9.9, this may prove to be a trivial bug, but it\u2019s still fascinating,\u201d said Dustin Childs of Trend Micro\u2019s Zero Day Initiative (ZDI) in his Tuesday analysis. \u201cAn attacker on a guest Hyper-V OS could execute code on the host Hyper-V server by sending a specially crafted IPv6 ping. This keeps it out of the wormable category. Still, a successful attack would allow the guest OS to completely take over the Hyper-V host. While not wormable, it\u2019s still cool to see new bugs in new scenarios being found in protocols that have been around for years.\u201d\n\nThe next bug, CVE-2021-26432\u00a0in Windows Services, is more likely to be exploited given its low complexity status, according to Microsoft\u2019s advisory; it doesn\u2019t require privileges or user interaction to exploit, but Microsoft offered no further details.\n\n\u201cThis may fall into the \u2018wormable\u2019 category, at least between servers with NFS installed, especially since the open network computing remote procedure call (ONCRPC) consists of an External Data Representation (XDR) runtime built on the Winsock Kernel (WSK) interface,\u201d Childs said. \u201cThat certainly sounds like elevated code on a listening network service. Don\u2019t ignore this patch.\u201d\n\nAleks Haugom, product marketing manager at Automox, added, \u201cExploitation results in total loss of confidentiality across all devices managed by the same security authority. Furthermore, attackers can utilize it for denial-of-service attacks or to maliciously modify files. So far, no further details have been divulged by Mic[...]\n\n___________________________ \n@hacking_Attack\n@Hacking_Video", "creation_timestamp": "2026-09-02T01:03:04.090187Z"}]}