CVE-2023-4154
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 Do…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Samba | Samba | from 4.0.0 before 4.17.12 from 4.18.0 before 4.18.8 from 4.19.0 before 4.19.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://access.redhat.com/security/cve/CVE-2023-4154
- https://bugzilla.redhat.com/show_bug.cgi?id=2241883
- https://bugzilla.samba.org/show_bug.cgi?id=15424
- https://security.netapp.com/advisory/ntap-20231124-0002/
- https://www.samba.org/samba/security/CVE-2023-4154.html
- https://access.redhat.com/security/cve/CVE-2023-4154
- https://bugzilla.redhat.com/show_bug.cgi?id=2241883
- https://bugzilla.samba.org/show_bug.cgi?id=15424
- https://security.netapp.com/advisory/ntap-20231124-0002/
- https://www.samba.org/samba/security/CVE-2023-4154.html