metadata/glsa/glsa-200501-21.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200501-21">
  <title>HylaFAX: hfaxd unauthorized login vulnerability</title>
  <synopsis>
    HylaFAX is subject to a vulnerability in its username matching code,
    potentially allowing remote users to bypass access control lists.
  </synopsis>
  <product type="ebuild">HylaFAX</product>
  <announced>2005-01-11</announced>
  <revised>2005-01-11: 01</revised>
  <bug>75941</bug>
  <access>remote</access>
  <affected>
    <package name="net-misc/hylafax" auto="yes" arch="*">
      <unaffected range="ge">4.2.0-r2</unaffected>
      <vulnerable range="lt">4.2.0-r2</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    HylaFAX is a software package for sending and receiving facsimile
    messages.
    </p>
  </background>
  <description>
    <p>
    The code used by hfaxd to match a given username and hostname with
    an entry in the hosts.hfaxd file is insufficiently protected against
    malicious entries.
    </p>
  </description>
  <impact type="normal">
    <p>
    If the HylaFAX installation uses a weak hosts.hfaxd file, a remote
    attacker could authenticate using a malicious username or hostname and
    bypass the intended access restrictions.
    </p>
  </impact>
  <workaround>
    <p>
    As a workaround, administrators may consider adding passwords to
    all entries in the hosts.hfaxd file.
    </p>
  </workaround>
  <resolution>
    <p>
    All HylaFAX users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=net-misc/hylafax-4.2.0-r2"</code>
    <p>
    Note: Due to heightened security, weak entries in the
    hosts.hfaxd file may no longer work. Please see the HylaFAX
    documentation for details of accepted syntax in the hosts.hfaxd file.
    </p>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1182">CAN-2004-1182</uri>
    <uri link="http://marc.theaimsgroup.com/?l=hylafax&amp;m=110545119911558&amp;w=2">HylaFAX Announcement</uri>
  </references>
  <metadata tag="requester" timestamp="2005-01-10T09:56:02Z">
    koon
  </metadata>
  <metadata tag="submitter" timestamp="2005-01-10T13:48:18Z">
    koon
  </metadata>
  <metadata tag="bugReady" timestamp="2005-01-11T16:16:35Z">
    koon
  </metadata>
</glsa>