| CVE-2011-2666 | Date: (C)2011-07-06 (M)2023-12-22 |
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.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V2 Severity: |
| CVSS Score : 5.0 |
| Exploit Score: 10.0 |
| Impact Score: 2.9 |
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| CVSS V2 Metrics: |
| Access Vector: NETWORK |
| Access Complexity: LOW |
| Authentication: NONE |
| Confidentiality: PARTIAL |
| Integrity: NONE |
| Availability: NONE |
| | |
