Description
Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.3, 1.6.0.x before 1.6.0.17, and 1.6.1.x before 1.6.1.9; Business Edition A.x.x, B.x.x before B.2.5.12, C.2.x.x before C.2.4.5, and C.3.x.x before C.3.2.2; AsteriskNOW 1.5; and s800i 1.3.x before 1.3.0.5 generate different error messages depending on whether a SIP username is valid, which allows remote attackers to enumerate valid usernames via multiple crafted REGISTER messages with inconsistent usernames in the URI in the To header and the Digest in the Authorization header.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://secunia.com/advisories/37265 ↗
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00838.html ↗
- http://secunia.com/advisories/37479 ↗
- http://secunia.com/advisories/37677 ↗
- http://www.debian.org/security/2009/dsa-1952 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=523277 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=533137 ↗
- http://www.securityfocus.com/bid/36924 ↗
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00789.html ↗
- http://osvdb.org/59697 ↗
- http://downloads.asterisk.org/pub/security/AST-2009-008.html ↗
- http://www.securitytracker.com/id?1023133 ↗