A design flaw was found in Samba's DirSync control implementation, which exposes passwords and secrets in Active Directory to privileged users and Read-Only Domain Controllers (RODCs). This flaw allows RODCs and users possessing the GET_CHANGES right to access all attributes, including sensitive secrets and passwords. Even in a default setup, RODC DC accounts, which should only replicate some passwords, can gain access to all domain secrets, including the vital krbtgt, effectively eliminating the RODC / DC distinction. Furthermore, the vulnerability fails to account for error conditions (fail open), like out-of-memory situations, potentially granting access to secret attributes, even under low-privileged attacker influence.
References
Link | Resource |
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https://access.redhat.com/security/cve/CVE-2023-4154 | Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=2241883 | Issue Tracking |
https://bugzilla.samba.org/show_bug.cgi?id=15424 | Issue Tracking Patch |
https://security.netapp.com/advisory/ntap-20231124-0002/ | |
https://www.samba.org/samba/security/CVE-2023-4154.html | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
24 Nov 2023, 09:15
Type | Values Removed | Values Added |
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New CVE |
Information
Published : 2023-11-07 20:15
Updated : 2024-02-05 00:22
NVD link : CVE-2023-4154
Mitre link : CVE-2023-4154
CVE.ORG link : CVE-2023-4154
JSON object : View
Products Affected
samba
- samba
CWE
CWE-787
Out-of-bounds Write