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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - xdg-open: command injection vulnerability"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=66670">66670</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>portland-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>xdg-open: command injection vulnerability
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>creffett@gentoo.org
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>xdg-utils
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Portland
          </td>
        </tr></table>
      <p>
        <div>
        <pre>A Gentoo user discovered [1] a vulnerability in xdg-open which allows for
arbitrary command injection. I was able to confirm it by running the following
command, and it worked with both our packaged version of xdg-utils (1.1.0_rc1
plus some patches) and current git master:

DE="generic" XDG_CURRENT_DESKTOP="" xdg-open '<a href="http://127.0.0.1/$(xterm">http://127.0.0.1/$(xterm</a>)' START
/usr/bin/chromium-browser "<a href="http://127.0.0.1/$(xterm">http://127.0.0.1/$(xterm</a>)"

That command should open an xterm terminal instead of chromium. Further details
available at our bug.

[1] <a href="https://bugs.gentoo.org/show_bug.cgi?id=472888">https://bugs.gentoo.org/show_bug.cgi?id=472888</a></pre>
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