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

Author	Note
mdeslaur	samba 4.17 only

Priority

Cvss 3 Severity Score

6.5

Score breakdown

Status

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

References

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