Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- http://www.securityfocus.com/archive/1/487658
- http://secunia.com/advisories/28819
- 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
- http://www.securityfocus.com/bid/27647
ADP enrichment
No English description supplied.
- http://www.securityfocus.com/archive/1/487658
- http://secunia.com/advisories/28819
- 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
- http://www.securityfocus.com/bid/27647