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CVE-2022-3592

Published: 12 January 2023

A symlink following vulnerability was found in Samba, where a user can create a symbolic link that will make 'smbd' escape the configured share path. This flaw allows a remote user with access to the exported part of the file system under a share via SMB1 unix extensions or NFS to create symlinks to files outside the 'smbd' configured share path and gain access to another restricted server's filesystem.

Notes

AuthorNote
mdeslaur
samba 4.17 only

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
samba
Launchpad, Ubuntu, Debian
upstream Not vulnerable
(debian: Vulnerable code only in 4.17.0 and later)
bionic Not vulnerable

focal Not vulnerable

jammy Not vulnerable

kinetic Not vulnerable

trusty Not vulnerable

xenial Not vulnerable

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N