chan_sip.c in the SIP channel driver in Asterisk Open Source 1.4.x before 1.4.41.2, 1.6.2.x before 1.6.2.18.2, and 1.8.x before 1.8.4.4, and Asterisk Business Edition C.3.x before C.3.7.3, disregards the alwaysauthreject option and generates different responses for invalid SIP requests depending on whether the user account exists, which allows remote attackers to enumerate account names via a series of requests.
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

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

Updated: 2011-09-07T09:00:00

Reserved: 2011-06-27T00:00:00


Link: CVE-2011-2536

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2011-07-06T19:55:03.543

Modified: 2011-09-07T03:17:36.083


Link: CVE-2011-2536

JSON object: View

cve-icon Redhat Information

No data.

CWE