glsa-200704-03.xml


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<?xml version="1.0" encoding="utf-8"?>
<!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>