Gentoo: GLSA-200504-12: rsnapshot: Local privilege escalation
Summary
Gentoo Linux Security Advisory GLSA 200504-12
https://security.gentoo.org/
Severity: High
Title: rsnapshot: Local privilege escalation
Date: April 13, 2005
Bugs: #88681
ID: 200504-12
Synopsis
=======
rsnapshot allow a local user to take ownership of local files,
resulting in privilege escalation.
Background
=========
rsnapshot is a filesystem snapshot utility based on rsync, allowing
local and remote systems backups.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/rsnapshot < 1.2.1 >= 1.2.1
==========
The copy_symlink() subroutine in rsnapshot follows symlinks when
changing file ownership, instead of changing the ownership of the
symlink itself.
Impact
=====
Under certain circumstances, local attackers can exploit this
vulnerability to take ownership of arbitrary files, resulting in local
privilege escalation.
Workaround
=========
The copy_symlink() subroutine is not called if the cmd_cp parameter has
been enabled.
Resolution
=========
All rsnapshot users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/rsnapshot-1.2.1"
References
=========
[ 1 ] rsnapshot Security Advisory 001
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/200504-12
Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org/.
License
======
Copyright 2005 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.0/
Resolution
References
Availability
Concerns
