Samba: ad dc password exposure to privileged users and rodcs
Summary
Samba: ad dc password exposure to privileged users and rodcs
Original description
The description as published by the source.
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.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2023-4154 samba Fixed in: 4.18.8-r0
- Debian DEBIAN-CVE-2023-4154 samba
References
- advisory access.redhat.com
- advisory github.com
- advisory nvd.nist.gov
- advisory security.netapp.com
- report bugzilla.redhat.com
- report bugzilla.samba.org
- web access.redhat.com
- web packages.fedoraproject.org
- web samba.org