glsa-201311-19.xml


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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="201311-19">
  <title>rssh: Access restriction bypass</title>
  <synopsis>Multiple vulnerabilities have been found in rssh, allowing local
    attackers to bypass access restrictions.
  </synopsis>
  <product type="ebuild">rssh</product>
  <announced>November 28, 2013</announced>
  <revised>November 28, 2013: 1</revised>
  <bug>415255</bug>
  <bug>445166</bug>
  <access>local</access>
  <affected>
    <package name="app-shells/rssh" auto="yes" arch="*">
      <unaffected range="ge">2.3.4</unaffected>
      <vulnerable range="lt">2.3.4</vulnerable>
    </package>
  </affected>
  <background>
    <p>rssh is a restricted shell, allowing only a few commands like scp or
      sftp. It is often used as a complement to OpenSSH to provide limited
      access to users.
    </p>
  </background>
  <description>
    <p>Multiple command line parsing and validation vulnerabilities have been
      discovered in rssh. Please review the CVE identifiers referenced below
      for details.
    </p>
  </description>
  <impact type="normal">
    <p>Multiple parsing and validation vulnerabilities can cause the
      restrictions set up by rssh to be bypassed. 
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All rssh users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=app-shells/rssh-2.3.4"
    </code>
    
  </resolution>
  <references>
    <uri link="http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2252">
      CVE-2012-2252
    </uri>
    <uri link="http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-3478">
      CVE-2012-3478
    </uri>
  </references>
  <metadata tag="requester" timestamp="Fri, 24 Aug 2012 14:16:31 +0000">
    underling
  </metadata>
  <metadata tag="submitter" timestamp="Thu, 28 Nov 2013 08:18:46 +0000">
    BlueKnight
  </metadata>
</glsa>