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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200409-15">
<title>Webmin, Usermin: Multiple vulnerabilities in Usermin</title>
A vulnerability in the webmail function of Usermin could be used by an
attacker to execute shell code via a specially-crafted e-mail. A bug in the
installation script of Webmin and Usermin also allows a local user to
execute a symlink attack at installation time.
<product type="ebuild">Usermin</product>
<announced>September 12, 2004</announced>
<revised>May 22, 2006: 02</revised>
<package name="app-admin/usermin" auto="yes" arch="*">
<unaffected range="ge">1.090</unaffected>
<vulnerable range="lt">1.090</vulnerable>
<package name="app-admin/webmin" auto="yes" arch="*">
<unaffected range="ge">1.160</unaffected>
<vulnerable range="lt">1.160</vulnerable>
Webmin and Usermin are web-based system administration consoles. Webmin
allows an administrator to easily configure servers and other features.
Usermin allows users to configure their own accounts, execute commands,
and read e-mail. The Usermin functionality, including webmail, is also
included in Webmin.
There is an input validation bug in the webmail feature of Usermin.
Additionally, the Webmin and Usermin installation scripts write to
/tmp/.webmin without properly checking if it exists first.
<impact type="normal">
The first vulnerability allows a remote attacker to inject arbitrary
shell code in a specially-crafted e-mail. This could lead to remote
code execution with the privileges of the user running Webmin or
The second could allow local users who know Webmin or Usermin is going
to be installed to have arbitrary files be overwritten by creating a
symlink by the name /tmp/.webmin that points to some target file, e.g.
There is no known workaround at this time.
All Usermin users should upgrade to the latest version:
# emerge sync
# emerge -pv &quot;&gt;=app-admin/usermin-1.090&quot;
# emerge &quot;&gt;=app-admin/usermin-1.090&quot;</code>
All Webmin users should upgrade to the latest version:
# emerge sync
# emerge -pv &quot;&gt;=app-admin/webmin-1.160&quot;
# emerge &quot;&gt;=app-admin/webmin-1.160&quot;</code>
<uri link="">Secunia Advisory SA12488</uri>
<uri link="">Usermin Changelog</uri>
<uri link="">CVE-2004-0559</uri>
<uri link="">CVE-2004-1468</uri>
<metadata tag="requester" timestamp="Fri, 10 Sep 2004 12:32:20 +0000">
<metadata tag="bugReady" timestamp="Sat, 11 Sep 2004 10:07:56 +0000">
<metadata tag="submitter" timestamp="Sat, 11 Sep 2004 16:34:02 +0000">