Vulnerabilities > CVE-2008-1147
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
A certain pseudo-random number generator (PRNG) algorithm that uses XOR and 2-bit random hops (aka "Algorithm X2"), as used in OpenBSD 2.6 through 3.4, Mac OS X 10 through 10.5.1, FreeBSD 4.4 through 7.0, and DragonFlyBSD 1.0 through 1.10.1, allows remote attackers to guess sensitive values such as IP fragmentation IDs by observing a sequence of previously generated values. NOTE: this issue can be leveraged for attacks such as injection into TCP packets and OS fingerprinting.
Vulnerable Configurations
References
- http://www.trusteer.com/docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf
- http://www.securiteam.com/securityreviews/5PP0H0UNGW.html
- http://www.securityfocus.com/archive/1/487658
- http://seclists.org/bugtraq/2008/Feb/0052.html
- http://seclists.org/bugtraq/2008/Feb/0063.html
- http://www.securityfocus.com/bid/27647
- http://secunia.com/advisories/28819
- https://exchange.xforce.ibmcloud.com/vulnerabilities/41155
- https://exchange.xforce.ibmcloud.com/vulnerabilities/40329
- http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/netinet/ip_id.c?rev=1.10%3Bcontenttype=