GLSA Bodhisattva
Joined: 17 Apr 2002 Posts: 2602 Location: Baltimore, MD
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Posted: Mon Mar 07, 2005 8:45 pm Post subject: [ GLSA 200503-14 ] KDE dcopidlng: Insecure temporary file cr |
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Gentoo Linux Security Advisory
Title: KDE dcopidlng: Insecure temporary file creation (GLSA 200503-14)
Severity: normal
Exploitable: local
Date: March 07, 2005
Bug(s): #81652
ID: 200503-14
Synopsis
The dcopidlng script is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.
Background
KDE is a feature-rich graphical desktop environment for Linux and Unix-like Operating Systems. DCOP is KDE's simple IPC/RPC mechanism. dcopidlng is a DCOP helper script.
Affected Packages
Package: kde-base/kdelibs
Vulnerable: < 3.3.2-r5
Unaffected: >= 3.3.2-r5
Unaffected: >= 3.2.3-r7 < 3.2.4
Architectures: All supported architectures
Description
Davide Madrisan has discovered that the dcopidlng script creates temporary files in a world-writable directory with predictable names.
Impact
A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When dcopidlng is executed, this would result in the file being overwritten with the rights of the user running the utility, which could be the root user.
Workaround
There is no known workaround at this time.
Resolution
All kdelibs users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose kde-base/kdelibs |
References
CAN-2005-0365
Last edited by GLSA on Sun Jul 30, 2006 4:17 am; edited 3 times in total |
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