The default configuration of the SIP channel driver in Asterisk Open Source 1.4.x through 1.4.41.2 and 1.6.2.x through 1.6.2.18.2 does not enable the alwaysauthreject option, which allows remote attackers to enumerate account names by making a series of invalid SIP requests and observing the differences in the responses for different usernames, a different vulnerability than CVE-2011-2536.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2011-07-06T19:00:00

Updated: 2024-08-06T23:08:23.735Z

Reserved: 2011-07-06T00:00:00

Link: CVE-2011-2666

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2011-07-06T19:55:03.637

Modified: 2024-11-21T01:28:43.267

Link: CVE-2011-2666

cve-icon Redhat

No data.