Symlink Vulnerability in Samba Affects File System Integrity
CVE-2021-44141

4.3MEDIUM

Key Information:

Vendor

Samba

Status
Samba
Vendor
CVE Published:
21 February 2022

What is CVE-2021-44141?

Samba versions prior to 4.15.5 are vulnerable to a potential attack where a malicious client can leverage server symlinks to access information about files or directories outside the designated server share. This vulnerability requires SMB1 with Unix extensions to be enabled for exploitation, allowing the attacker to discern the existence of files that should be inaccessible under normal circumstances. Proper server configurations and updates are essential to mitigate this risk.

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Affected Version(s)

Samba All versions of Samba prior to 4.15.5

References

https://www.samba.org/samba/security/CVE-2021-44141.html
https://security.gentoo.org/glsa/202309-06
vendor-advisory

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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