43905 : PowerDNS Recursor DNS Predictable Transaction ID (TRXID) Cache Poisoning Weakness
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Info

Last Modified

about 1 month ago

Percent Complete

65%

Disclosure

Mar 30, 2008

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Unknown

Description

(Description Provided by CVE) : PowerDNS Recursor before 3.1.5 uses insufficient randomness to calculate (1) TRXID values and (2) UDP source port numbers, which makes it easier for remote attackers to poison a DNS cache, related to (a) algorithmic deficiencies in rand and random functions in external libraries, (b) use of a 32-bit seed value, and (c) choice of the time of day as the sole seeding information.

Classification

Location: Remote/Network Access Required
Solution: Upgrade
Exploit: Exploit Unknown

Solution

Upgrade to version 3.1.6 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

PowerDns

PowerDns

3.1.4

References

CVE ID: 2008-1637 (see also: NVD) 2008-3217 (see also: NVD)
Bugtraq ID: 28517 30782
Secunia Advisory ID: 29584 29737 29764 29830 30581 31311
ISS X-Force ID: 41534 43925
FrSIRT Advisory: ADV-2008-1046
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2008-03/0448.html
Vendor Specific News/Changelog Entry: http://doc.powerdns.com/changelog.html
http://doc.powerdns.com/changelog.html#CHANGELOG-RECURSOR-3-1-6
http://doc.powerdns.com/powerdns-advisory-2008-01.html
http://wiki.powerdns.com/cgi-bin/trac.fcgi/changeset/1179
Other Advisory URL: http://lists.debian.org/debian-security-announce/2008/msg00114.html
http://lists.opensuse.org/opensuse-security-announce/2008-06/msg00001.html
http://www.gentoo.org/security/en/glsa/glsa-200804-22.xml
http://www.openwall.com/lists/oss-security/2008/07/09/10
http://www.openwall.com/lists/oss-security/2008/07/10/6
http://www.openwall.com/lists/oss-security/2008/07/16/12
http://www.trusteer.com/docs/powerdnsrecursor.html
http://www.trusteer.com/docs/PowerDNS_recursor_DNS_Cache_Poisoning.pdf
https://www.redhat.com/archives/fedora-package-announce/2008-April/msg00198.html

Tools & Filters

Nessus	31824 32015 33090 33770

Credit

Amit Klein - aksecurityhotpop.com -

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