glsa-201808-03.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201808-03">
  <title>NetworkManager VPNC plugin: Privilege escalation</title>
  <synopsis>A vulnerability in NetworkManager VPNC plugin allows local users to
    escalate privileges.
  </synopsis>
  <product type="ebuild">networkmanager-vpnc</product>
  <announced>2018-08-22</announced>
  <revised count="1">2018-08-22</revised>
  <bug>661712</bug>
  <access>local</access>
  <affected>
    <package name="net-misc/networkmanager-vpnc" auto="yes" arch="*">
      <unaffected range="ge">1.2.6</unaffected>
      <vulnerable range="lt">1.2.6</vulnerable>
    </package>
  </affected>
  <background>
    <p>NetworkManager is an universal network configuration daemon for laptops,
      desktops, servers and virtualization hosts.
    </p>
    
    <p>The VPNC plugin provides easy access Cisco Concentrator based VPN’s
      utilizing NetworkManager.
    </p>
  </background>
  <description>
    <p>When initiating a VPNC connection, NetworkManager spawns a new vpnc
      process and passes the configuration via STDIN. By injecting a special
      character into a configuration parameter, an attacker can coerce
      NetworkManager to set the Password helper option to an attacker
      controlled executable file.
    </p>
  </description>
  <impact type="normal">
    <p>A local attacker is able to escalate privileges via a specially crafted
      configuration file.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All NetworkManager VPNC plugin users should upgrade to the latest
      version:
    </p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose
      "&gt;=net-misc/networkmanager-vpnc-1.2.6"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2018-10900">CVE-2018-10900</uri>
  </references>
  <metadata tag="requester" timestamp="2018-07-30T00:25:20Z">irishluck83</metadata>
  <metadata tag="submitter" timestamp="2018-08-22T21:14:54Z">irishluck83</metadata>
</glsa>