Spoofing attack in Microsoft Windows LSA
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-36942 |
| CWE-ID | CWE-451 |
| Exploitation vector | Network |
| Public exploit | Vulnerability #1 is being exploited in the wild. |
| Vulnerable software Subscribe |
Windows Server Operating systems & Components / Operating system |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Spoofing attack
EUVDB-ID: #VU55719
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-36942
CWE-ID:
CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in the Windows LSA. A remote attacker can spoof page content.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows Server: 2008 - 2019 2004
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36942
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
