Vulnerability CVE-2007-6430
Published: 2007-12-19   Modified: 2012-02-12

Description:
Asterisk Open Source 1.2.x before 1.2.26 and 1.4.x before 1.4.16, and Business Edition B.x.x before B.2.3.6 and C.x.x before C.1.0-beta8, when using database-based registrations ("realtime") and host-based authentication, does not check the IP address when the username is correct and there is no password, which allows remote attackers to bypass authentication using a valid username.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Database matching order permits host-based authentication to be ignored
Tilghman Lesher
20.12.2007

Type:

CWE-287

 (Improper Authentication)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Asterisk -> Asterisk business edition 
Asterisk -> Open source 

 References:
http://downloads.digium.com/pub/security/AST-2007-027.html
http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.html
http://security.gentoo.org/glsa/glsa-200804-13.xml
http://securityreason.com/securityalert/3467
http://www.debian.org/security/2008/dsa-1525
http://www.securityfocus.com/archive/1/485287/100/0/threaded
http://www.securityfocus.com/bid/26928
http://www.securitytracker.com/id?1019110
http://www.vupen.com/english/advisories/2007/4260
https://exchange.xforce.ibmcloud.com/vulnerabilities/39124
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