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