CVE-2023-4154

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Summary

CVECVE-2023-4154
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-11-07 20:15:00 UTC
Updated2023-11-15 15:40:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Samba Samba All All All All

References

ReferenceSourceLinkTags
2241883 – (CVE-2023-4154) CVE-2023-4154 samba: AD DC password exposure to privileged users and RODCs bugzilla.redhat.com
15424 – (CVE-2023-4154) CVE-2023-4154 [SECURITY] dirsync allows SYSTEM access with only "GUID_DRS_GET_CHANGES" right, not "GUID_DRS_GET_ALL_CHANGES" bugzilla.samba.org
cve-details access.redhat.com
Samba - Security Announcement Archive www.samba.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 199820 Ubuntu Security Notification for Samba Vulnerabilities (USN-6425-1)
  • 199907 Ubuntu Security Notification for Samba Vulnerabilities (USN-6425-3)
  • 284612 Fedora Security Update for samba (FEDORA-2023-7eb8cbf1a5)
  • 284682 Fedora Security Update for samba (FEDORA-2023-fff0c857d6)
  • 285191 Fedora Security Update for samba (FEDORA-2023-8c9251e479)
  • 503395 Alpine Linux Security Update for samba
  • 505937 Alpine Linux Security Update for samba
  • 6000310 Debian Security Update for samba (DSA 5525-1)
  • 673574 EulerOS Security Update for samba (EulerOS-SA-2023-3286)
  • 673680 EulerOS Security Update for samba (EulerOS-SA-2023-3258)
  • 710873 Gentoo Linux Samba Multiple Vulnerabilities (GLSA 202402-28)
  • 755069 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2023:4046-1)
  • 755081 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2023:4059-1)
  • 755106 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2023:4096-1)
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