vulnwire
6.8med

CVE-2008-1147

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…

Published 18 y ago · modified 4 mo ago · JSON

CVSS
6.8
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.8%
percentile 78%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

1.77% probability of exploitation in the next 30 days, higher than 78% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.06.8AV:N/AC:M/Au:N/C:P/I:P/A:P

References

  • exchange.xforce.ibmcloud.com /vulnerabilities/41155 · vdb-entry, x_refsource_XF, x_transferred
  • seclists.org /bugtraq/2008/Feb/0063.html · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • seclists.org /bugtraq/2008/Feb/0052.html · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • securityfocus.com /archive/1/487658 · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • secunia.com /advisories/28819 · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • trusteer.com /docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf · x_refsource_MISC, x_transferred
  • securiteam.com /securityreviews/5PP0H0UNGW.html · x_refsource_MISC, x_transferred
  • exchange.xforce.ibmcloud.com /vulnerabilities/40329 · vdb-entry, x_refsource_XF, x_transferred
  • freebsd.org /cgi/cvsweb.cgi/src/sys/netinet/ip_id.c?rev=1.10%3Bcontenttype= · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/27647 · vdb-entry, x_refsource_BID, x_transferred

Sources

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