CVE-2011-2666
Severity CVSS v4.0:
Pending analysis
Type:
CWE-16
Configuration Errors
Publication date:
06/07/2011
Last modified:
11/04/2025
Description
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.
Impact
Base Score 2.0
5.00
Severity 2.0
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:digium:asterisk:1.6.2.0:*:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.0:rc2:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.0:rc3:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.0:rc4:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.0:rc5:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.0:rc6:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.0:rc7:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.0:rc8:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.1:*:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.1:rc1:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.2:*:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.3:rc2:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.4:*:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.5:*:*:*:*:*:*:* | ||
| cpe:2.3:a:digium:asterisk:1.6.2.6:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page