This vulnerability is 10 years 6 months and 12 days old there are exploits publicly available for it. The vulnerability itself is over a year old, and with there being exploits publicly available it is highly advisable that this vulnerability is patched immediately.
SynopsisThe remote name resolver (or the server it uses upstream) is affected by a DNS cache poisoning vulnerability.
Vulnerability DescriptionThe remote DNS resolver does not use random ports when making queries to third-party DNS servers. An unauthenticated, remote attacker can exploit this to poison the remote DNS server, allowing the attacker to divert legitimate traffic to arbitrary sites.
The DNS protocol, as implemented in (1) BIND 8 and 9 before 9.5.0-P1, 9.4.2-P1, and 9.3.5-P1; (2) Microsoft DNS in Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP1 and SP2; and other implementations allow remote attackers to spoof DNS traffic via a birthday attack that uses in-bailiwick referrals to conduct cache poisoning against recursive resolvers, related to insufficient randomness of DNS transaction IDs and source ports, aka “DNS Insufficient Socket Entropy Vulnerability” or “the Kaminsky bug.”
SolutionContact your DNS server vendor for a patch.
CVE ReferencesCVE-2008-1447 NIST | MITRE | CVEDetails
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