7.5 HIGH
- CVSS version: 3.1
- Attack vector (AV): NETWORK
- Attack complexity (AC): HIGH
- Privileges required (PR): LOW
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): HIGH
- Integrity impact (I): HIGH
- Availability impact (A): HIGH
Samba: ad dc password exposure to privileged users and rodcs
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
- 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 x_refsource_REDHAT vdb-entry
- RHBZ#2241883 issue-tracking x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2023-4154 x_refsource_REDHAT vdb-entry
- RHBZ#2241883 issue-tracking x_refsource_REDHAT
- 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 x_refsource_REDHAT vdb-entry x_transferred
- RHBZ#2241883 issue-tracking x_refsource_REDHAT x_transferred
- https://bugzilla.samba.org/show_bug.cgi?id=15424 x_transferred
- https://security.netapp.com/advisory/ntap-20231124-0002/ x_transferred
- https://www.samba.org/samba/security/CVE-2023-4154.html x_transferred
Affected products
- ==4.18.8
- ==4.17.12
- ==4.19.1
Matching in nixpkgs
pkgs.samba4
Standard Windows interoperability suite of programs for Linux and Unix
-
nixos-unstable -
- nixpkgs-unstable 4.22.3
pkgs.sambaFull
Standard Windows interoperability suite of programs for Linux and Unix
-
nixos-unstable -
- nixpkgs-unstable 4.22.3
pkgs.samba4Full
Standard Windows interoperability suite of programs for Linux and Unix
-
nixos-unstable -
- nixpkgs-unstable 4.22.3
Package maintainers
-
@aneeshusa Aneesh Agrawal <aneeshusa@gmail.com>
-
@jbedo Justin Bedő <cu@cua0.org>