Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2008-6564

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
31/03/2009
Last modified:
09/04/2025

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.

Impact

Vector 2.0
AV:N/AC:H/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.60 HIGH
Vector: AV:N/AC:H/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
7.60
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:nortel:communication_server_1000:*:*:*:*:*:*:*:*
cpe:2.3:h:nortel:unistim_protocol:*:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools