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71 lines
2.4 KiB
71 lines
2.4 KiB
<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200504-25">
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<title>Rootkit Hunter: Insecure temporary file creation</title>
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<synopsis>
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Rootkit Hunter is vulnerable to symlink attacks, potentially allowing a
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local user to overwrite arbitrary files.
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</synopsis>
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<product type="ebuild">rkhunter</product>
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<announced>April 26, 2005</announced>
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<revised>April 26, 2005: 01</revised>
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<bug>90007</bug>
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<access>local</access>
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<affected>
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<package name="app-forensics/rkhunter" auto="yes" arch="*">
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<unaffected range="ge">1.2.3-r1</unaffected>
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<vulnerable range="lt">1.2.3-r1</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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Rootkit Hunter is a scanning tool to detect rootkits, backdoors
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and local exploits on a local machine. Rootkit Hunter uses downloaded
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data files to check file integrity. These files are updated via the
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check_update.sh script.
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</p>
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</background>
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<description>
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<p>
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Sune Kloppenborg Jeppesen and Tavis Ormandy of the Gentoo Linux
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Security Team have reported that the check_update.sh script and the
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main rkhunter script insecurely creates several temporary files with
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predictable filenames.
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</p>
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</description>
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<impact type="normal">
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<p>
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A local attacker could create symbolic links in the temporary
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files directory, pointing to a valid file somewhere on the filesystem.
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When rkhunter or the check_update.sh script runs, this would result in
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the file being overwritten with the rights of the user running the
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utility, which could be the root user.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All Rootkit Hunter users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=app-forensics/rkhunter-1.2.3-r1"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1270">CAN-2005-1270</uri>
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</references>
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<metadata tag="submitter" timestamp="Tue, 26 Apr 2005 06:10:01 +0000">
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jaervosz
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</metadata>
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<metadata tag="bugReady" timestamp="Tue, 26 Apr 2005 18:37:38 +0000">
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koon
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</metadata>
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</glsa>
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