metadata/glsa/glsa-201606-13.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201606-13">
  <title>sudo: Unauthorized privilege escalation in sudoedit</title>
  <synopsis>sudo is vulnerable to an escalation of privileges via a symlink
    attack.
  </synopsis>
  <product type="ebuild"></product>
  <announced>June 26, 2016</announced>
  <revised>June 26, 2016: 1</revised>
  <bug>564774</bug>
  <access>local</access>
  <affected>
    <package name="app-admin/sudo" auto="yes" arch="*">
      <unaffected range="ge">1.8.15-r1</unaffected>
      <vulnerable range="lt">1.8.15-r1</vulnerable>
    </package>
  </affected>
  <background>
    <p>sudo (su “do”) allows a system administrator to delegate authority
      to give certain users (or groups of users) the ability to run some (or
      all) commands as root or another user while providing an audit trail of
      the commands and their arguments.
    </p>
  </background>
  <description>
    <p>sudoedit in sudo is vulnerable to the escalation of privileges by local
      users via a symlink attack.  This can be exploited by a file whose full
      path is defined using multiple wildcards in /etc/sudoers, as demonstrated
      by “/home/<em>/</em>/file.txt.
    </p>
  </description>
  <impact type="normal">
    <p>Local users are able to gain unauthorized privileges on the system.</p>
  </impact>
  <workaround>
    <p>There is no known work around at this time.</p>
  </workaround>
  <resolution>
    <p>All sudo users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=app-admin/sudo-1.8.15-r1"
    </code>
  </resolution>
  <references>
    <uri link="http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-5602">
      CVE-2015-5602
    </uri>
  </references>
  <metadata tag="requester" timestamp="Wed, 23 Dec 2015 23:28:50 +0000">
    BlueKnight
  </metadata>
  <metadata tag="submitter" timestamp="Sun, 26 Jun 2016 13:48:21 +0000">b-man</metadata>
</glsa>