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Family: Gentoo Local Security Checks --> Category: infos
[GLSA-200504-06] sharutils: Insecure temporary file creation Vulnerability Scan
Vulnerability Scan Summary
sharutils: Insecure temporary file creation
Detailed Explanation for this Vulnerability Test
The remote host is affected by the vulnerability described in GLSA-200504-06
(sharutils: Insecure temporary file creation)
Joey Hess has discovered that the program unshar, which is a part
of sharutils, 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 unshar 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.
References:
http://www.ubuntulinux.org/support/documentation/usn/usn-104-1
Solution:
All sharutils users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/sharutils-4.2.1-r11"
Threat Level: Medium
Click HERE for more information and discussions on this network vulnerability scan.
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