CVE-2008-1897

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
23/04/2008
Last modified:
09/04/2025

Description

The IAX2 channel driver (chan_iax2) in Asterisk Open Source 1.0.x, 1.2.x before 1.2.28, and 1.4.x before 1.4.19.1; Business Edition A.x.x, B.x.x before B.2.5.2, and C.x.x before C.1.8.1; AsteriskNOW before 1.0.3; Appliance Developer Kit 0.x.x; and s800i before 1.1.0.3, when configured to allow unauthenticated calls, does not verify that an ACK response contains a call number matching the server's reply to a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed ACK response that does not complete a 3-way handshake. NOTE: this issue exists because of an incomplete fix for CVE-2008-1923.

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:0.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:0.3:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:0.4:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:0.5:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:0.6:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:0.6.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:0.7:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:0.8:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:* b.2.5.1 (including)
cpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:* c1.8.0 (including)
cpe:2.3:a:asterisk:asterisk_business_edition:a:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:asterisk_business_edition:b.2.2.1:*:*:*:*:*:*:*


References to Advisories, Solutions, and Tools