CVE-2008-1148 Weak cryptography in n/a

Medium 6.8 Published 4 Mar 2008 Updated 7 Aug 2024

Remote attackers can predict random values to poison DNS caches or inject TCP packets due to weak PRNG implementation in OpenBSD and NetBSD.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2008-1148?

CVE-2008-1148 is a medium-severity vulnerability in n/a, published on 4 Mar 2008. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A certain pseudo-random number generator (PRNG) algorithm that uses ADD with 0 random hops (aka "Algorithm A0"), as used in OpenBSD 3.5 through 4.2 and NetBSD 1.6.2 through 4.0, allows remote attackers to guess sensitive values such as (1) DNS transaction IDs or (2) IP fragmentation IDs by observing a sequence of previously generated values. NOTE: this issue can be leveraged for attacks such as DNS cache poisoning, injection into TCP packets, and OS fingerprinting.

Which versions are affected by CVE-2008-1148?

It affects 3 products.

Products include Cosmicperl Directory Pro, Darwin Darwin, Navision Financials Server.

How do I fix CVE-2008-1148?

No fix has been published for CVE-2008-1148 yet. Limit exposure of the affected software until one is available.

Is CVE-2008-1148 being exploited?

There is no known exploitation of CVE-2008-1148 in the wild and no public exploit code.

Sources

Also known as GHSA-fhgf-9836-788p.