Vulnerability Details : CVE-2011-2666

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.
Published 2011-07-06 19:55:04
Updated 2017-08-29 01:29:30
Source MITRE
View at NVD,   CVE.org

Threat overview for CVE-2011-2666

Top countries where our scanners detected CVE-2011-2666
Top open port discovered on systems with this issue 80
IPs affected by CVE-2011-2666 155
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2011-2666!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2011-2666

Probability of exploitation activity in the next 30 days: 0.36%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 68 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2011-2666

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
5.0
 MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
 NIST

CWE ids for CVE-2011-2666

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-2666

Products affected by CVE-2011-2666

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