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BIND 8 Predictable DNS Query IDs Vulnerability
Secunia Advisory: SA26629
Release Date: 2007-08-28
Popularity: 9,628 views

Critical:
Moderately critical
Impact: Spoofing
Where: From remote
Solution Status: Vendor Patch

Software:ISC BIND 8.x.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Amit Klein has reported a vulnerability in BIND, which can be exploited by malicious people to poison the DNS cache.

The vulnerability is caused due to predictable query IDs in outgoing queries (e.g. if BIND works as resolver or when sending NOTIFYs to slaves) and can be exploited to poison the DNS cache when the query ID is guessed.

Reportedly, the probability to guess the next query ID is between 25% and 43%, depending on the handled DNS traffic.

The vulnerability is reported in BIND 8.x versions prior to 8.4.7-P1.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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