Bug 6857 - [Anolis OS 23] Bugfix for CVE-2023-4154
Summary: [Anolis OS 23] Bugfix for CVE-2023-4154
Status: RESOLVED FIXED
Alias: None
Product: Anolis OS 23
Classification: Anolis OS
Component: BaseOS Packages (show other bugs) BaseOS Packages
Version: unspecified
Hardware: All Linux
: P4-Low S4-trivial
Target Milestone: ---
Assignee: happy_orange
QA Contact: bolong_tbl
URL:
Whiteboard:
Keywords: CVE
Depends on:
Blocks:
 
Reported: 2023-10-17 11:49 UTC by 小龙
Modified: 2023-10-17 11:51 UTC (History)
0 users

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Description 小龙 admin 2023-10-17 11:49:30 UTC 
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.

Broken commit info:

Bugfix commit info:
https://download.samba.orghttps://download.samba.org/pub/samba/ftp/patches/security/samba-4.18.8-security-2023-10-10.patch
https://download.samba.orghttps://download.samba.org/pub/samba/ftp/patches/security/samba-4.17.12-security-2023-10-10.patch
https://download.samba.orghttps://download.samba.org/pub/samba/ftp/patches/security/samba-4.19.1-security-2023-10-10.patch
Comment 1 小龙 admin 2023-10-17 11:51:27 UTC 
PR: 
https://gitee.com/src-anolis-os/samba/pulls/36