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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2023-11-07T19:14:28.305Z

Updated: 2024-08-02T07:17:12.144Z

Reserved: 2023-08-04T13:22:07.200Z

Link: CVE-2023-4154

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-11-07T20:15:08.683

Modified: 2023-12-29T05:15:08.850

Link: CVE-2023-4154

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-10-10T00:00:00Z

Links: CVE-2023-4154 - Bugzilla