CVE-2008-1146

Description

A certain pseudo-random number generator (PRNG) algorithm that uses XOR and 3-bit random hops (aka "Algorithm X3"), as used in OpenBSD 2.8 through 4.2, allows remote attackers to guess sensitive values such as DNS transaction IDs by observing a sequence of previously generated values. NOTE: this issue can be leveraged for attacks such as DNS cache poisoning against OpenBSD's modification of BIND.

6.8

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 0.97% Top 25%

Third-Party Advisory secunia.com

Affected: n/a n/a

References

Link	Tags
http://www.securityfocus.com/archive/1/487658	mailing list
http://secunia.com/advisories/28819	third party advisory
http://www.trusteer.com/docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf
http://www.securiteam.com/securityreviews/5PP0H0UNGW.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/40329	vdb entry
http://www.securityfocus.com/bid/27647	vdb entry

Frequently Asked Questions

What is the severity of CVE-2008-1146?: CVE-2008-1146 has been scored as a medium severity vulnerability.
How to fix CVE-2008-1146?: To fix CVE-2008-1146, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2008-1146 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2008-1146 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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