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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200903-02">
<title>ZNC: Privilege escalation</title>
<synopsis>
A vulnerability in ZNC allows for privilege escalation.
</synopsis>
<product type="ebuild">znc</product>
<announced>March 06, 2009</announced>
<revised>March 06, 2009: 01</revised>
<bug>260148</bug>
<access>remote</access>
<affected>
<package name="net-irc/znc" auto="yes" arch="*">
<unaffected range="ge">0.066</unaffected>
<vulnerable range="lt">0.066</vulnerable>
</package>
</affected>
<background>
<p>
ZNC is an advanced IRC bouncer.
</p>
</background>
<description>
<p>
cnu discovered multiple CRLF injection vulnerabilities in ZNC's
webadmin module.
</p>
</description>
<impact type="high">
<p>
A remote authenticated attacker could modify the znc.conf configuration
file and gain privileges via newline characters in e.g. the QuitMessage
field, and possibly execute arbitrary code.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All ZNC users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-irc/znc-0.066&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0759">CVE-2009-0759</uri>
</references>
<metadata tag="requester" timestamp="Thu, 05 Mar 2009 20:11:58 +0000">
keytoaster
</metadata>
<metadata tag="submitter" timestamp="Thu, 05 Mar 2009 22:51:15 +0000">
keytoaster
</metadata>
<metadata tag="bugReady" timestamp="Fri, 06 Mar 2009 22:00:32 +0000">
p-y
</metadata>
</glsa>