GLSA 200504-20: openMosixview: Insecure temporary file creation

http://security.gentoo.org/

Severity:	normal
Title:	openMosixview: Insecure temporary file creation
Date:	04/21/2005
Bugs:	#86686
ID:	200504-20

Synopsis

openMosixview and the openMosixcollector daemon are vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.

Background

The openMosixview package contains several tools used to manage openMosix clusters, including openMosixview (the main monitoring and administration application) and openMosixcollector (a daemon collecting cluster and node information).

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
sys-cluster/openmosixview	< 1.5-r1	>= 1.5-r1	All supported architectures

Description

Gangstuck and Psirac from Rexotec discovered that openMosixview insecurely creates several temporary files with predictable filenames.

Impact

A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When openMosixView or the openMosixcollector daemon runs, 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 openMosixview users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-cluster/openmosixview-1.5-r1"

References

CAN-2005-0894

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200504-20.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 https://bugs.gentoo.org.