CVE-2022-45141

samba: Samba AD DC using Heimdal can be forced to issue rc4-hmac encrypted Kerberos tickets

Published Mar 6, 2023 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
Since the Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability was disclosed by Microsoft on Nov 8 2022 and per RFC8429 it is assumed that rc4-hmac is weak, Vulnerable Samba Active Directory DCs will issue rc4-hmac encrypted tickets despite the target server supporting better encryption (eg aes256-cts-hmac-sha1-96).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-48056 Since the Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability was disclosed by Microsoft on Nov 8 2022 and per RFC8429 it is assumed that rc4-hmac is weak, Vulnerable Samba Active Directory DCs will issue rc4-hmac encrypted tickets despite the target server supporting better encryption (eg aes256-cts-hmac-sha1-96).
Ubuntu USN Ubuntu USN USN-5822-1 Samba vulnerabilities
Ubuntu USN Ubuntu USN USN-5936-1 Samba vulnerabilities
Ubuntu USN Ubuntu USN USN-7582-1 Samba vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Mar 6, 2025, 8:38 PM
Reserved
Nov 10, 2022, 12:00 AM
Status
Modified
Published
Mar 6, 2023, 11:15 PM
Modified
Jun 17, 2026, 5:09 AM
Severity
Important
Public date
Dec 16, 2022, 12:00 AM