Computer Security
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Multiple DNS servers and clients DNS records spoofing
updated since 12.07.2008
SecurityVulns ID:9142
Threat Level:
Description:DNS poisoning attack may be used to spoof query results.
Affected:CISCO : IOS 12.2
 CISCO : IOS 12.3
 BIND : bind 9.3
 CISCO : IOS 12.4
 PDNS : pdns-recursor 3.1
 PYTHON : python-dns 2.3
CVE:CVE-2008-1637 (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.)
 CVE-2008-1447 (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.")
Original documentdocumentDEBIAN, [SECURITY] [DSA 1619-1] New python-dns packages fix DNS response spoofing (29.07.2008)
 documentI)ruid, CAU-EX-2008-0002: Kaminsky DNS Cache Poisoning Flaw Exploit (25.07.2008)
 documentDEBIAN, [SECURITY] [DSA 1544-2] New pdns-recursor packages fix predictable randomness (18.07.2008)
 documentCISCO, Cisco Security Advisory: Multiple Cisco Products Vulnerable to DNS Cache Poisoning Attacks (12.07.2008)
 documentDEBIAN, [SECURITY] [DSA 1605-1] DNS vulnerability impact on the libc stub resolver (12.07.2008)
Files:DNS BailiWicked Host Attack
 Tool: PorkBind Nameserver Security Scanner

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