KDE DCOPServer Insecure Temporary File Creation Vulnerability

BID:10924

Info

KDE DCOPServer Insecure Temporary File Creation Vulnerability

Bugtraq ID: 10924
Class: Race Condition Error
CVE: CVE-2004-0690
Remote: No
Local: Yes
Published: Aug 11 2004 12:00AM
Updated: Jul 12 2009 06:16AM
Credit: Colin Phipps <[email protected]> reported this vulnerability to Debian GNU/Linux.
Vulnerable: Mandriva Linux Mandrake 10.0 AMD64
Mandriva Linux Mandrake 10.0
Mandriva Linux Mandrake 9.2 amd64
Mandriva Linux Mandrake 9.2
KDE KDE 3.2.3
KDE KDE 3.2.2
+ KDE KDE 3.2.2
+ Redhat Fedora Core2
 KDE KDE 3.2.1
KDE KDE 3.2
Gentoo Linux 1.4
Not Vulnerable:

Discussion

KDE DCOPServer Insecure Temporary File Creation Vulnerability

KDEs DCOPServer is reported to contain an insecure temporary file creation vulnerability. This is due to the use of the mktemp() function.

Since temporary files are used by the DCOP daemon for authentication purposes, a local attacker may possibly exploit this vulnerability to compromise the account of a targeted user running KDE.

A local attacker may also possibly exploit this vulnerability to execute symbolic link file overwrite attacks. This may allow an attacker to overwrite arbitrary files with the privileges of the targeted user. Privilege escalation may also be possible using this method of attack.

KDE versions from 3.2.0 to 3.2.3 are reported susceptible to this vulnerability.

Exploit / POC

KDE DCOPServer Insecure Temporary File Creation Vulnerability

An exploit is not required.

Solution / Fix

KDE DCOPServer Insecure Temporary File Creation Vulnerability

Solution:
Gentoo Linux has released advisory GLSA 200408-13 addressing this, and other issues. Please see the referenced advisory for further information. Users of affected packages are urged to execute the following commands with superuser privileges:
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"

OpenBSD has included patches to fix this issue in OpenBSD-current as of 14 Aug 2004. These patches have not been included in 3.4 or 3.5 at the time of this update.

Mandrake Linux has released an advisory (MDKSA-2004:086) along with fixes to address this, and other issues. Please see the referenced advisory for further information.

KDE has released patches resolving this issue:

Conectiva Linux has released advisory CLA-2004:864 along with fixes dealing with this and other issues. Please see the referenced advisory for more information.


KDE KDE 3.2

KDE KDE 3.2.1

KDE KDE 3.2.2

KDE KDE 3.2.3

References

KDE DCOPServer Insecure Temporary File Creation Vulnerability

References:

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