Vulnerability CVE-2008-1148
Published: 2008-03-04   Modified: 2012-02-12

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.

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Navision -> Financials server 
Darwin -> Darwin 
Cosmicperl -> Directory pro 

 References:
http://www.securiteam.com/securityreviews/5PP0H0UNGW.html
http://www.securityfocus.com/archive/1/487658
http://www.securityfocus.com/bid/27647
http://www.trusteer.com/docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf
https://exchange.xforce.ibmcloud.com/vulnerabilities/40329
https://exchange.xforce.ibmcloud.com/vulnerabilities/41157
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