CVE-2008-6564

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Summary

CVECVE-2008-6564
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-03-31 17:30:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionNortel 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.

Risk And Classification

Primary CVSS: v2.0 7.6 from [email protected]

AV:N/AC:H/Au:N/C:C/I:C/A:C

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:H/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Nortel Communication Server 1000 All All All All
Hardware Nortel Unistim Protocol All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
osvdb.org/44379 af854a3a-2127-422b-91ae-364da2661108 osvdb.org
Nortel Networks Communication Server Multiple Vulnerabilities - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Nortel: Technical Support: Nortel response to VoIP potential security vulnerabilities in CS 1000 af854a3a-2127-422b-91ae-364da2661108 support.nortel.com Vendor Advisory
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
Nortel IP Phones Predictable UNIStim Sequence Numbers Facilitate Hijacking Attacks - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Nothing found for Research Details Php?id=27&s=4&threats_Details=&threats_Category=0&threats_Vendor=0&limit=20&sort=Discovered&sortby=Desc af854a3a-2127-422b-91ae-364da2661108 www.voipshield.com
Nortel Networks Communication Server 1000 Multiple Security Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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