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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200401-02">
<title>Honeyd remote detection vulnerability via a probe packet</title>
<synopsis>
Identification of Honeyd installations allows an adversary to launch
attacks specifically against Honeyd. No remote root exploit is currently
known.
</synopsis>
<product type="ebuild">honeyd</product>
<announced>January 21, 2004</announced>
<revised>January 21, 2004: 01</revised>
<bug>38934</bug>
<access>remote</access>
<affected>
<package name="net-analyzer/honeyd" auto="yes" arch="*">
<unaffected range="ge">0.8</unaffected>
<vulnerable range="lt">0.8</vulnerable>
</package>
</affected>
<background>
<p>
Honeyd is a virtual honeypot daemon that can simulate virtual hosts on
unallocated IP addresses.
</p>
</background>
<description>
<p>
A bug in handling NMAP fingerprints caused Honeyd to reply to TCP
packets with both the SYN and RST flags set. Watching for replies, it is
possible to detect IP addresses simulated by Honeyd.
</p>
</description>
<impact type="low">
<p>
Although there are no public exploits known for Honeyd, the detection
of Honeyd IP addresses may in some cases be undesirable.
</p>
</impact>
<workaround>
<p>
Honeyd 0.8 has been released along with an advisory to address this
issue. In addition, Honeyd 0.8 drops privileges if permitted by the
configuration file and contains command line flags to force dropping
of privileges.
</p>
</workaround>
<resolution>
<p>
All users are recommended to update to honeyd version 0.8:
</p>
<code>
$> emerge sync
$> emerge -pv ">=net-analyzer/honeyd-0.8"
$> emerge ">=net-analyzer/honeyd-0.8"</code>
</resolution>
<references>
<uri link="http://www.honeyd.org/adv.2004-01.asc">Honeyd Security Advisory 2004-001</uri>
</references>
</glsa>