Gentoo Sandbox Unsafe Temporary Files May Let Local Users Gain Elevated Privileges
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SecurityTracker Alert ID: 1014574
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SecurityTracker URL: http://securitytracker.com/id?1014574
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CVE Reference: CVE-2005-2449
(Links to External Site)
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Updated: Jul 6 2008
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Original Entry Date: Jul 26 2005
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Impact: Modification of system information, Modification of user information, Root access via local system
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Fix Available: Yes
Vendor Confirmed: Yes
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Advisory: Gentoo Advisory
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Version(s): prior to 1.2.11
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Description: A vulnerability was reported in Gentoo sandbox. A local user may be able to obtain elevated privileges.
The sandbox utility, used by the Gentoo Portag system, creates temporary files in an unsafe manner.
A local user may be able to exploit a race condition to cause arbitrary files to be created or overwritten with root level privileges.
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Impact: A local user may be able to cause arbitrary files to be created or overwritten with root level privileges.
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Solution: The vendor has released a fixed version (1.2.11) and indicates that all sandbox users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/sandbox-1.2.11"
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Vendor URL: security.gentoo.org/glsa/glsa-200507-22.xml (Links to External Site)
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Cause: Access control error, State error
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Underlying OS: Linux (Gentoo)
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Reported By: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org>
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Message History:
None.
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Source Message Contents
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Date: Mon, 25 Jul 2005 20:06:22 +0200
From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org>
Subject: [Full-disclosure] [ GLSA 200507-22 ] sandbox: Insecure temporary
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Gentoo Linux Security Advisory GLSA 200507-22
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http://security.gentoo.org/
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Severity: Low
Title: sandbox: Insecure temporary file handling
Date: July 25, 2005
Bugs: #96782
ID: 200507-22
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Synopsis
========
The sandbox utility may create temporary files in an insecure manner.
Background
==========
sandbox is a Gentoo Linux utility used by the Portage package
management system.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-apps/sandbox < 1.2.11 >= 1.2.11
Description
===========
The Gentoo Linux Security Audit Team discovered that the sandbox
utility was vulnerable to multiple TOCTOU (Time of Check, Time of Use)
file creation race conditions.
Impact
======
Local users may be able to create or overwrite arbitrary files with the
permissions of the root user.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All sandbox users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/sandbox-1.2.11"
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200507-22.xml
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
http://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.
http://creativecommons.org/licenses/by-sa/2.0
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