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gzip Various Scripts Insecure Temporary File Creation
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Secunia Advisory:
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SA13131
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Release Date:
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2004-11-08
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Popularity:
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11,634 views
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Unpatched
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| Software: | gzip 1.x
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| CVE reference: | CVE-2004-0970
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Description:
Some vulnerabilities have been reported in gzip, which can be exploited by malicious, local users to perform certain actions on a vulnerable system with escalated privileges.
The vulnerabilities are caused due to the "gzexe.in", "zdiff.in", and "znew.in" scripts creating temporary files insecurely. This can be exploited via symlink attacks to create or overwrite arbitrary files on the system with the privileges of the user executing a vulnerable script.
The vulnerabilities have been reported in versions 1.2.4 and 1.3.2. Other versions may also be affected.
Solution:
Grant only trusted users access to affected systems.
Provided and/or discovered by:
First reported in a Trustix advisory.
Original Advisory:
http://www.trustix.org/errata/2004/0050/
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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