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Vulnerability Details : 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 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.
Publish Date : 2008-03-04 Last Update Date : 2008-09-05
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s)
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2008-1147

# Product Type Vendor Product Version Update Edition Language
1 Application Cosmicperl Directory Pro 10.0.3 Version Details Vulnerabilities
2 Application Darwin Darwin 1.0 Version Details Vulnerabilities
3 Application Darwin Darwin 9.1 Version Details Vulnerabilities
4 Application Navision Financials Server 3.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Cosmicperl Directory Pro 1
Darwin Darwin 2
Navision Financials Server 1

- References For CVE-2008-1147

http://seclists.org/bugtraq/2008/Feb/0052.html
BUGTRAQ 20080206 Re: A paper by Amit Klein (Trusteer): "OpenBSD DNS Cache Poisoning and Multiple O/S Predictable IP ID Vulnerability"
http://seclists.org/bugtraq/2008/Feb/0063.html
BUGTRAQ 20080206 RE: A paper by Amit Klein (Trusteer): "OpenBSD DNS Cache Poisoning and Multiple O/S Predictable IP ID Vulnerability"
http://secunia.com/advisories/28819
SECUNIA 28819
http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/netinet/ip_id.c?rev=1.10;contenttype= CONFIRM
http://www.securiteam.com/securityreviews/5PP0H0UNGW.html
http://www.securityfocus.com/bid/27647
BID 27647 OpenBSD PRNG DNS Cache Poisoning and Predictable IP ID Weakness Release Date:2008-03-13
http://www.securityfocus.com/archive/1/487658
BUGTRAQ 20080206 A paper by Amit Klein (Trusteer): "OpenBSD DNS Cache Poisoning and Multiple O/S Predictable IP ID Vulnerability"
http://www.trusteer.com/docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf
http://xforce.iss.net/xforce/xfdb/41155
XF openbsd-xor-weak-security(41155)
http://xforce.iss.net/xforce/xfdb/40329
XF openbsd-prng-dns-spoofing(40329)

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used TOGETHER WITH(AND)

- Metasploit Modules Related To CVE-2008-1147

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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