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Debian: CVE-2023-4154: samba -- security update

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Debian: CVE-2023-4154: samba -- security update

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:C/I:N/A:N)
Published
10/19/2023
Created
10/20/2023
Added
10/19/2023
Modified
01/30/2025

Description

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.

Solution(s)

  • debian-upgrade-samba

References

  • https://attackerkb.com/topics/cve-2023-4154
  • CVE - 2023-4154
  • DSA-5525-1
  • 查看数 705
  • 已创建
  • 最后回复

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