Spoofing attack in Microsoft Windows LSA



Published: 2022-05-10
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-26925
CWE-ID CWE-300
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Man-in-the-Middle (MitM) attack

EUVDB-ID: #VU62921

Risk: High

CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-26925

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists within the Windows LSA service. A remote attacker can call a method on the LSARPC interface and coerce the domain controller to authenticate to the attacker using NTLM. As a result, an attacker can obtain credentials and compromise the affected system via the NTLM Relay Attack.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7 - 11 21H2

Windows Server: 2008 - 2022


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-26925

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?

Yes. This vulnerability is being exploited in the wild.



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