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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200409-15">
<title>Webmin, Usermin: Multiple vulnerabilities in Usermin</title>
<synopsis>
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.
</synopsis>
<product type="ebuild">Usermin</product>
<announced>2004-09-12</announced>
<revised count="02">2006-05-22</revised>
<bug>63167</bug>
<access>remote</access>
<affected>
<package name="app-admin/usermin" auto="yes" arch="*">
<unaffected range="ge">1.090</unaffected>
<vulnerable range="lt">1.090</vulnerable>
</package>
<package name="app-admin/webmin" auto="yes" arch="*">
<unaffected range="ge">1.160</unaffected>
<vulnerable range="lt">1.160</vulnerable>
</package>
</affected>
<background>
<p>
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.
</p>
</background>
<description>
<p>
There is an input validation bug in the webmail feature of Usermin.
</p>
<p>
Additionally, the Webmin and Usermin installation scripts write to
/tmp/.webmin without properly checking if it exists first.
</p>
</description>
<impact type="normal">
<p>
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
Usermin.
</p>
<p>
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.
/etc/passwd.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Usermin users should upgrade to the latest version:
</p>
<code>
# emerge sync
# emerge -pv ">=app-admin/usermin-1.090"
# emerge ">=app-admin/usermin-1.090"</code>
<p>
All Webmin users should upgrade to the latest version:
</p>
<code>
# emerge sync
# emerge -pv ">=app-admin/webmin-1.160"
# emerge ">=app-admin/webmin-1.160"</code>
</resolution>
<references>
<uri link="https://secunia.com/advisories/12488/">Secunia Advisory SA12488</uri>
<uri link="http://www.webmin.com/uchanges.html">Usermin Changelog</uri>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0559">CVE-2004-0559</uri>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1468">CVE-2004-1468</uri>
</references>
<metadata tag="requester" timestamp="2004-09-10T12:32:20Z">
koon
</metadata>
<metadata tag="bugReady" timestamp="2004-09-11T10:07:56Z">
koon
</metadata>
<metadata tag="submitter" timestamp="2004-09-11T16:34:02Z">
dmargoli
</metadata>
</glsa>
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