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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200506-10] LutelWall: Insecure temporary file creation


Vulnerability Assessment Details

[GLSA-200506-10] LutelWall: Insecure temporary file creation

Vulnerability Assessment Summary
LutelWall: Insecure temporary file creation

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200506-10
(LutelWall: Insecure temporary file creation)


Eric Romang has discovered that the new_version_check() function
in LutelWall insecurely creates a temporary file when updating to a new
version.

Impact

A local attacker could create symbolic links in the temporary file
directory, pointing to a valid file somewhere on the filesystem. When
the update script is executed (usually by the root user), this would
result in the file being overwritten with the rights of this user.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1879


Solution:
All LutelWall users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-firewall/lutelwall-0.98"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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