Elevation of Privilege Vulnerability in Samba Active Directory
CVE-2022-45141

9.8CRITICAL

Key Information:

Vendor

Samba

Status
Samba
Vendor
CVE Published:
6 March 2023

What is CVE-2022-45141?

The Samba Active Directory Domain Controllers are susceptible to an elevation of privilege vulnerability due to the use of the rc4-hmac encryption algorithm. Despite the presence of better encryption options such as aes256-cts-hmac-sha1-96, vulnerable Samba DCs can issue rc4-hmac encrypted tickets. This flaw arises from the deprecation of rc4-hmac as weak encryption as established by RFC8429, presenting a risk for unauthorized access and exploitation. Organizations must assess their systems to mitigate associated risks.

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Affected Version(s)

Samba Fixed in samba 4.15.13, samba 4.16.8, samba 4.15.13

References

https://www.samba.org/samba/security/CVE-2022-45141.html
https://security.gentoo.org/glsa/202309-06
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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