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

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CVE-2008-5558

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
17/12/2008
Last modified:
09/04/2025

Description

Asterisk Open Source 1.2.26 through 1.2.30.3 and Business Edition B.2.3.5 through B.2.5.5, when realtime IAX2 users are enabled, allows remote attackers to cause a denial of service (crash) via authentication attempts involving (1) an unknown user or (2) a user using hostname matching.

Impact

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

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

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

Base Score 2.0
4.30
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.4:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.5:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.3:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26.1:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26.1:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.26.2:netsec:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.27:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.28:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.29:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:open_source:1.2.30:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools