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<?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="200704-03">
<title>OpenAFS: Privilege escalation</title>
<synopsis>
OpenAFS is subject to a design flaw that could allow privilege escalation
on the client.
</synopsis>
<product type="ebuild">openafs</product>
<announced>April 03, 2007</announced>
<revised>April 03, 2007: 01</revised>
<bug>171662</bug>
<access>remote</access>
<affected>
<package name="net-fs/openafs" auto="yes" arch="*">
<unaffected range="ge">1.4.4</unaffected>
<vulnerable range="lt">1.4.4</vulnerable>
</package>
</affected>
<background>
<p>
OpenAFS is a distributed network filesystem.
</p>
</background>
<description>
<p>
Benjamin Bennett discovered that the OpenAFS client contains a design
flaw where cache managers do not use authenticated server connections
when performing actions not requested by a user.
</p>
</description>
<impact type="high">
<p>
If setuid is enabled on the client cells, an attacker can supply a fake
FetchStatus reply that sets setuid and root ownership of a file being
executed. This could provide root access on the client. Remote attacks
may be possible if an attacker can entice a user to execute a known
file. Note that setuid is enabled by default in versions of OpenAFS
prior to 1.4.4.
</p>
</impact>
<workaround>
<p>
Disable the setuid functionality on all client cells. This is now the
default configuration in OpenAFS.
</p>
</workaround>
<resolution>
<p>
All OpenAFS users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-fs/openafs-1.4.4&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1507">CVE-2007-1507</uri>
</references>
<metadata tag="requester" timestamp="Sun, 25 Mar 2007 06:35:01 +0000">
jaervosz
</metadata>
<metadata tag="submitter" timestamp="Wed, 28 Mar 2007 13:53:51 +0000">
aetius
</metadata>
<metadata tag="bugReady" timestamp="Tue, 03 Apr 2007 22:29:30 +0000">
falco
</metadata>
</glsa>