KDE DCOPserver symlink attack
| kde-dcopserver-symlink (16962) |  Medium Risk |
Description:
K Desktop Environment (KDE) creates temporary files insecurely. A local attacker could create a symbolic link from a temporary file to an arbitrary file, which could allow the attacker to create or overwrite files on the system.
Platforms Affected:
- Conectiva, Linux 10
- Conectiva, Linux 9.0
- Gentoo, Linux
- KDE, K Desktop Environment (KDE) prior to 3.01
- MandrakeSoft, Mandrake Linux 10.0
- MandrakeSoft, Mandrake Linux 10.0 AMD64
- MandrakeSoft, Mandrake Linux 9.2
- MandrakeSoft, Mandrake Linux 9.2 AMD64
- Slackware, Slackware Linux 10.0
- Slackware, Slackware Linux 9.1
- Slackware, Slackware Linux current
Remedy:
For KDE 3.2.3:
Apply the appropriate patches for this vulnerability, as listed in KDE Security Advisory 20040811-2. See References.
For Gentoo Linux:
Upgrade to the latest version of KDE (3.2.3-r1 or later), as listed in GLSA 200408-13. See References.
For Mandrake Linux:
Upgrade to the latest kdelibs package, as listed below.Refer to MandrakeSoft Security Advisory MDKSA-2004:086 : kdelibs/kdebase for more information.See References.
Mandrake Linux 9.2: 3.1.3-79.2.92mdk or later
Mandrake Linux 10.0: 3.2-79.2.100mdk or later
For Slackware Linux:
Upgrade to the latest kde package, as listed below. Refer to slackware-security Mailing List, Fri, 3 Sep 2004 22:01:35 -0700 (PDT) for more information. See References.
Slackware Linux 9.1: 3.1.4-i486-2 or later
Slackware Linux 10.0 and -current: 3.2.3-i486-2 or later
For Conectiva Linux:
Upgrade to the latest kde package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2004:864 for more information. See References.
Conectiva Linux 10.0: 3.2.3-63234U10_1cl or later
Conectiva Linux 9: 3.1.5-28535U90_5cl or later
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
File Manipulation
References:
- Conectiva Linux Security Announcement CLSA-2004:864, Fix for multiple security vulnerabilities at http://distro.conectiva.com.br/atualizacoes/index.php?id=a&anuncio=000864.
- Debian Bug report logs - #261386, /usr/lib/libkdeinit_dcopserver.so: not using mkstemp, creating temp file unsafely at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=261386.
- KDE Security Advisory 20040811-2, DCOPServer Temporary Filename Vulnerability at http://www.kde.org/info/security/advisory-20040811-2.txt.
- Slackware Security Advisories Fri, 3 Sep 2004 22:01:35 -0700 (PDT), [slackware-security] kde (SSA:2004-247-01) at http://slackware.com/security/viewer.php?l=slackware-security&y=2004&m=slackware-security.440345.
- BID-10924: KDE DCOPServer Insecure Temporary File Creation Vulnerability
- CVE-2004-0690: The DCOPServer in KDE 3.2.3 and earlier allows local users to gain unauthorized access via a symlink attack on DCOP files in the /tmp directory.
- MDKSA-2004:086: Updated kdelibs and kdebase packages fix multiple vulnerabilities
- SA12276: KDE Insecure Temporary File Creation Vulnerability
- US-CERT VU#330638: KDE DCOPServer insecurely creates temporary files
Reported:
Aug 11, 2004
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