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Shorewall Insecure Temporary File Creation Vulnerability
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Secunia Advisory:
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SA12029
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Release Date:
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2004-07-09
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Last Update:
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2004-07-14
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Popularity:
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6,499 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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Vendor Patch
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| Software: | Shorewall 1.4.x
Shorewall 2.0.x
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Subscribe:
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| CVE reference: | CVE-2004-0647
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Description:
Javier Fernández-Sanguino Peña has discovered a vulnerability in Shorewall, which can be exploited by malicious, local users to perform certain actions on a vulnerable system with escalated privileges.
The vulnerability is caused due to the "shorewall" script creating temporary files insecurely, which can be exploited via symlink attacks to overwrite arbitrary files with the privileges of the user invoking the script (usually root).
Solution:
The vulnerability has been fixed in versions 2.0.3a and 1.4.10f.
http://shorewall.net/download.htm
Provided and/or discovered by:
Javier Fernández-Sanguino Peña
Changelog:
2004-07-14: Added CVE reference.
Original Advisory:
http://lists.shorewall.net/pipermail/shorewall-announce/2004-June/000385.html
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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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