glsa-200502-21.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">

<glsa id="200502-21">
  <title>lighttpd: Script source disclosure</title>
  <synopsis>
    An attacker can trick lighttpd into revealing the source of scripts that
    should be executed as CGI or FastCGI applications.
  </synopsis>
  <product type="ebuild">lighttpd</product>
  <announced>February 15, 2005</announced>
  <revised>May 22, 2006: 02</revised>
  <bug>81776</bug>
  <access>remote</access>
  <affected>
    <package name="www-servers/lighttpd" auto="yes" arch="*">
      <unaffected range="ge">1.3.10-r1</unaffected>
      <vulnerable range="lt">1.3.10-r1</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    lighttpd is a small-footprint, fast, compliant and very flexible
    web-server which is optimized for high-performance environments.
    </p>
  </background>
  <description>
    <p>
    lighttpd uses file extensions to determine which elements are programs
    that should be executed and which are static pages that should be sent
    as-is. By appending %00 to the filename, you can evade the extension
    detection mechanism while still accessing the file.
    </p>
  </description>
  <impact type="low">
    <p>
    A remote attacker could send specific queries and access the source of
    scripts that should have been executed as CGI or FastCGI applications.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All lighttpd users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=www-servers/lighttpd-1.3.10-r1&quot;</code>
  </resolution>
  <references>
    <uri link="http://article.gmane.org/gmane.comp.web.lighttpd/1171">lighttpd-announce Advisory</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0453">CVE-2005-0453</uri>
  </references>
  <metadata tag="requester" timestamp="Mon, 14 Feb 2005 12:34:31 +0000">
    koon
  </metadata>
  <metadata tag="bugReady" timestamp="Mon, 14 Feb 2005 20:13:10 +0000">
    koon
  </metadata>
  <metadata tag="submitter" timestamp="Mon, 14 Feb 2005 20:53:12 +0000">
    koon
  </metadata>
</glsa>