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.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Link | Tags |
|---|---|
| http://secunia.com/advisories/28149 | third party advisory vendor advisory |
| http://secunia.com/advisories/29782 | third party advisory |
| http://security.gentoo.org/glsa/glsa-200804-13.xml | vendor advisory |
| http://secunia.com/advisories/29242 | third party advisory |
| http://www.securityfocus.com/archive/1/485287/100/0/threaded | mailing list |
| http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.html | vendor advisory |
| http://www.vupen.com/english/advisories/2007/4260 | vdb entry |
| http://www.debian.org/security/2008/dsa-1525 | vendor advisory |
| http://securityreason.com/securityalert/3467 | third party advisory |
| http://www.osvdb.org/39519 | vdb entry |
| http://www.securitytracker.com/id?1019110 | vdb entry vendor advisory |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/39124 | vdb entry |
| http://secunia.com/advisories/29456 | third party advisory |
| http://www.securityfocus.com/bid/26928 | vdb entry |
| http://downloads.digium.com/pub/security/AST-2007-027.html |