|
|
|
|
<?xml version="1.0" encoding="utf-8"?>
|
|
|
|
|
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
|
|
|
|
|
<glsa id="200808-02">
|
|
|
|
|
<title>Net-SNMP: Multiple vulnerabilities</title>
|
|
|
|
|
<synopsis>
|
|
|
|
|
Multiple vulnerabilities in Net-SNMP allow for authentication bypass in
|
|
|
|
|
snmpd and execution of arbitrary code in Perl applications using Net-SMNP.
|
|
|
|
|
</synopsis>
|
|
|
|
|
<product type="ebuild">net-snmp</product>
|
|
|
|
|
<announced>2008-08-06</announced>
|
|
|
|
|
<revised count="01">2008-08-06</revised>
|
|
|
|
|
<bug>222265</bug>
|
|
|
|
|
<bug>225105</bug>
|
|
|
|
|
<access>remote</access>
|
|
|
|
|
<affected>
|
|
|
|
|
<package name="net-analyzer/net-snmp" auto="yes" arch="*">
|
|
|
|
|
<unaffected range="ge">5.4.1.1</unaffected>
|
|
|
|
|
<vulnerable range="lt">5.4.1.1</vulnerable>
|
|
|
|
|
</package>
|
|
|
|
|
</affected>
|
|
|
|
|
<background>
|
|
|
|
|
<p>
|
|
|
|
|
Net-SNMP is a collection of tools for generating and retrieving SNMP
|
|
|
|
|
data. The SNMPv3 protocol uses a keyed-Hash Message Authentication Code
|
|
|
|
|
(HMAC) to verify data integrity and authenticity of SNMP messages.
|
|
|
|
|
</p>
|
|
|
|
|
</background>
|
|
|
|
|
<description>
|
|
|
|
|
<p>
|
|
|
|
|
Wes Hardaker reported that the SNMPv3 HMAC verification relies on the
|
|
|
|
|
client to specify the HMAC length (CVE-2008-0960). John Kortink
|
|
|
|
|
reported a buffer overflow in the Perl bindings of Net-SNMP when
|
|
|
|
|
processing the OCTETSTRING in an attribute value pair (AVP) received by
|
|
|
|
|
an SNMP agent (CVE-2008-2292).
|
|
|
|
|
</p>
|
|
|
|
|
</description>
|
|
|
|
|
<impact type="normal">
|
|
|
|
|
<p>
|
|
|
|
|
An attacker could send SNMPv3 packets to an instance of snmpd providing
|
|
|
|
|
a valid user name and an HMAC length value of 1, and easily conduct
|
|
|
|
|
brute-force attacks to bypass SNMP authentication. An attacker could
|
|
|
|
|
further entice a user to connect to a malicious SNMP agent with an SNMP
|
|
|
|
|
client using the Perl bindings, possibly resulting in the execution of
|
|
|
|
|
arbitrary code.
|
|
|
|
|
</p>
|
|
|
|
|
</impact>
|
|
|
|
|
<workaround>
|
|
|
|
|
<p>
|
|
|
|
|
There is no known workaround at this time.
|
|
|
|
|
</p>
|
|
|
|
|
</workaround>
|
|
|
|
|
<resolution>
|
|
|
|
|
<p>
|
|
|
|
|
All Net-SNMP users should upgrade to the latest version:
|
|
|
|
|
</p>
|
|
|
|
|
<code>
|
|
|
|
|
# emerge --sync
|
|
|
|
|
# emerge --ask --oneshot --verbose ">=net-analyzer/net-snmp-5.4.1.1"</code>
|
|
|
|
|
</resolution>
|
|
|
|
|
<references>
|
|
|
|
|
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0960">CVE-2008-0960</uri>
|
|
|
|
|
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2292">CVE-2008-2292</uri>
|
|
|
|
|
</references>
|
|
|
|
|
<metadata tag="requester" timestamp="2008-07-02T11:15:36Z">
|
|
|
|
|
keytoaster
|
|
|
|
|
</metadata>
|
|
|
|
|
<metadata tag="bugReady" timestamp="2008-07-04T13:09:07Z">
|
|
|
|
|
vorlon
|
|
|
|
|
</metadata>
|
|
|
|
|
<metadata tag="submitter" timestamp="2008-07-07T08:46:03Z">
|
|
|
|
|
rbu
|
|
|
|
|
</metadata>
|
|
|
|
|
</glsa>
|
