CVEs-PoC/2008/CVE-2008-1637.md

CVE-2008-1637

Description

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.

POC

Reference

• http://www.trusteer.com/docs/PowerDNS_recursor_DNS_Cache_Poisoning.pdf
• http://www.trusteer.com/docs/powerdnsrecursor.html

Github

• https://github.com/thomasbiege/Publications