CVE-2021-36942: Windows LSA Spoofing Vulnerability
First published: Thu Aug 12 2021(Updated: )
Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability allowing an unauthenticated attacker to call a method on the LSARPC interface and coerce the domain controller to authenticate against another server using NTLM.
Credit: secure@microsoft.com secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =r2-sp1 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2004 | <10.0.19041.1165 | |
| Microsoft Windows Server 2016 | <10.0.14393.4583 | |
| Microsoft Windows Server 2019 | <10.0.17763.2114 | |
| Microsoft Windows Server 20H2 | <10.0.19042.1165 | |
| Microsoft Windows Operating System |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-36942?
CVE-2021-36942 has a severity rating of critical, allowing unauthenticated attackers to exploit the vulnerability.
How do I fix CVE-2021-36942?
To mitigate CVE-2021-36942, apply the security updates provided by Microsoft for the affected Windows versions.
What versions of Windows are affected by CVE-2021-36942?
CVE-2021-36942 affects various Windows Server versions, including 2004, 2008, 2012, 2016, 2019, and 20H2.
Can CVE-2021-36942 be exploited remotely?
Yes, CVE-2021-36942 can be exploited remotely by an unauthenticated attacker to perform unauthorized actions.
What type of attack is associated with CVE-2021-36942?
CVE-2021-36942 involves a spoofing vulnerability that allows attackers to coerce authentication through the LSARPC interface.
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