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.

Score

CVSS 2.0 5.0 Medium

Status

Modified - cve@mitre.org

Published

2011-07-06

Last modified

2024-08-06

Weaknesses

CWE-16

Affected products

• Asterisk (Digium)

References

• http://downloads.asterisk.org/pub/security/AST-2011-011.html
• https://exchange.xforce.ibmcloud.com/vulnerabilities/68472