Vulnerability CVE-2008-6564
Published: 2009-03-31   Modified: 2012-02-12

Description:
Nortel UNIStim protocol, as used in Communication Server 1000 and other products, uses predictable sequence numbers, which allows remote attackers to hijack sessions via sniffing or brute force attacks.

CVSS2 => (AV:N/AC:H/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.6/10
10/10
4.9/10
Exploit range
Attack complexity
Authentication
Remote
High
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Nortel -> Communication server 1000 
Nortel -> Unistim protocol 

 References:
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=713455
http://www.securityfocus.com/bid/28691
http://www.securitytracker.com/id?1019847
http://www.voipshield.com/research-details.php?id=27&s=4&threats_details=&threats_category=0&threats_vendor=0&limit=20&sort=discovered&sortby=DESC
https://exchange.xforce.ibmcloud.com/vulnerabilities/41801
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