(Gentoo Issues Fix) KDE Temporary File Bugs Let Local Users Gain Elevated Privileges and Frame Injection Flaw Lets Remote Users Spoof Web Sites
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SecurityTracker Alert ID: 1010946 |
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SecurityTracker URL: http://securitytracker.com/id/1010946
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CVE Reference:
CAN-2004-0689, CAN-2004-0690, CAN-2004-0721
(Links to External Site)
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Date: Aug 13 2004
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Impact:
Denial of service via network, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 3.2.3 and prior versions
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Description:
Several vulnerabilities were reported in KDE. A local user may be able to obtain elevated privileges or deny service. A remote user may be able to spoof web sites.
It is reported that a local user can cause KDE to create or overwrite arbitrary files by creating a symbolic link (symlink) from a file on the system to a temporary file to be used by KDE [CVE: CAN-2004-0689]. Then, when the target user runs KDE applications outside of the KDE environment, the symlinked file may be created or truncated. The symlinks are created in '~/.kde'.
A local user can exploit this to prevent KDE applications from operating properly or to obtain elevated privileges.
This vulnerability was reported by Andrew Tuitt on June 23, 2004 and affects version 3.2.3 and prior versions.
It is reported that KDE's DCOPServer creates temporary files in an unsafe manner [CVE: CAN-2004-0690], including temporary files used for authentication. A local user can gain access to a target user's account.
This vulnerability was reported by Colin Phipps on July 25, 2004 and affects KDE 3.2 through 3.2.3.
It is also reported that a remote user can create HTML that, when loaded, will open a frame in an arbitrary frame-based web page that is currently open on the target user's system [CVE: CAN-2004-0721]. A remote user can exploit this flaw to spoof a web site.
KDE version KDE 3.2.3 and prior versions are affected.
Secunia reported this vulnerability on July 1, 2004.
The original advisories are available at:
http://www.kde.org/info/security/advisory-20040811-1.txt
http://www.kde.org/info/security/advisory-20040811-2.txt
http://www.kde.org/info/security/advisory-20040811-3.txt
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Impact:
A local user can deny service to KDE applications.
A local user may be able to gain elevated privileges.
A remote user may be able to spoof arbitrary web sites.
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Solution:
Gentoo has released a fix and indicates that all KDE users should upgrade to the latest versions of kdelibs and kdebase:
# emerge sync
# emerge -pv ">=kde-base/kdebase-3.2.3-r1"
# emerge ">=kde-base/kdebase-3.2.3-r1"
# emerge -pv ">=kde-base/kdelibs-3.2.3-r1"
# emerge ">=kde-base/kdelibs-3.2.3-r1"
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Vendor URL: www.kde.org/info/security/ (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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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Thu, 12 Aug 2004 23:08:16 +0200
Subject: [gentoo-announce] [ GLSA 200408-13 ] kdebase, kdelibs: Multiple security issues
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
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Gentoo Linux Security Advisory GLSA 200408-13
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http://security.gentoo.org/
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Severity: Normal
Title: kdebase, kdelibs: Multiple security issues
Date: August 12, 2004
Bugs: #60068
ID: 200408-13
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Synopsis
========
KDE contains three security issues that can allow an attacker to
compromise system accounts, cause a Denial of Service, or spoof
websites via frame injection.
Background
==========
KDE is a powerful Free Software graphical desktop environment for Linux
and Unix-like Operating Systems.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 kde-base/kdebase < 3.2.3-r1 >= 3.2.3-r1
2 kde-base/kdelibs < 3.2.3-r1 >= 3.2.3-r1
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------
Description
===========
KDE contains three security issues:
* Insecure handling of temporary files when running KDE applications
outside of the KDE environment
* DCOPServer creates temporary files in an insecure manner
* The Konqueror browser allows websites to load webpages into a
target frame of any other open frame-based webpage
Impact
======
An attacker could exploit these vulnerabilities to create or overwrite
files with the permissions of another user, compromise the account of
users running a KDE application and insert arbitrary frames into an
otherwise trusted webpage.
Workaround
==========
There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version of kdebase.
Resolution
==========
All KDE users should upgrade to the latest versions of kdelibs and
kdebase:
# emerge sync
# emerge -pv ">=kde-base/kdebase-3.2.3-r1"
# emerge ">=kde-base/kdebase-3.2.3-r1"
# emerge -pv ">=kde-base/kdelibs-3.2.3-r1"
# emerge ">=kde-base/kdelibs-3.2.3-r1"
References
==========
[ 1 ] KDE Advisory: Temporary Directory Vulnerability
http://www.kde.org/info/security/advisory-20040811-1.txt
[ 2 ] KDE Advisory: DCOPServer Temporary Filename Vulnerability
http://www.kde.org/info/security/advisory-20040811-2.txt
[ 3 ] KDE Advisory: Konqueror Frame Injection Vulnerability
http://www.kde.org/info/security/advisory-20040811-3.txt
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200408-13.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 2004 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/1.0
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