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Vulnerability DatabaseCVE-2021-33786
CVE-2021-33786:
vulnerability analysis and mitigation
Overview
CVE-2021-33786 is a Windows LSA Security Feature Bypass Vulnerability that was discovered and disclosed in July 2021. The vulnerability affects multiple Microsoft Windows Server versions including Server 2012, Server 2012 R2, Server 2016, and Server 2019 (Rapid7).
Technical details
The vulnerability has been assigned a CVSS severity score of 7.0, indicating a moderate to high severity level. The attack vector is network-based (AV:N) with low attack complexity (AC:L) requiring single authentication (Au:S), and can potentially impact confidentiality, integrity, and availability partially (C:P/I:P/A:P) (Rapid7).
Impact
This security feature bypass vulnerability in Windows LSA could potentially allow attackers to compromise system security features, leading to partial impacts on system confidentiality, integrity, and availability (Rapid7).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability across multiple affected versions. The fixes are available through various KB updates including KB5004302 for Windows Server 2012, KB5004285 for Server 2012 R2, KB5004238 for Server 2016, and KB5004244 for Server 2019 (Rapid7).
Additional resources
Source: This report was generated using AI
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