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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200606-02">
<title>shadow: Privilege escalation</title>
<synopsis>
A security issue in shadow allows a local user to perform certain actions
with escalated privileges.
</synopsis>
<product type="ebuild">shadow</product>
<announced>June 07, 2006</announced>
<revised>June 07, 2006: 01</revised>
<bug>133615</bug>
<access>local</access>
<affected>
<package name="sys-apps/shadow" auto="yes" arch="*">
<unaffected range="ge">4.0.15-r2</unaffected>
<vulnerable range="lt">4.0.15-r2</vulnerable>
</package>
</affected>
<background>
<p>
shadow provides a set of utilities to deal with user accounts.
</p>
</background>
<description>
<p>
When the mailbox is created in useradd, the "open()" function does
not receive the three arguments it expects while O_CREAT is present,
which leads to random permissions on the created file, before fchmod()
is executed.
</p>
</description>
<impact type="normal">
<p>
Depending on the random permissions given to the mailbox file
which is at this time owned by root, a local user may be able to open
this file for reading or writing, or even executing it, maybe as the
root user.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All shadow users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=sys-apps/shadow-4.0.15-r2&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1174">CVE-2006-1174</uri>
</references>
<metadata tag="requester" timestamp="Thu, 01 Jun 2006 07:06:38 +0000">
falco
</metadata>
<metadata tag="submitter" timestamp="Thu, 01 Jun 2006 15:23:57 +0000">
falco
</metadata>
<metadata tag="bugReady" timestamp="Mon, 05 Jun 2006 17:20:29 +0000">
falco
</metadata>
</glsa>