CVE-2011-2666
Medium
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.
SeverityMedium
CVSS5.0
Exploit probability—
ProductDigium Asterisk
PublishedJul 6, 2011
First seenJul 6, 2011
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| digium asterisk | 1.6.2.0, 1.6.2.1, 1.6.2.2, 1.6.2.3, 1.6.2.4, 1.6.2.5, 1.6.2.6, 1.6.2.15, 1.6.2.16, 1.6.2.16.1, 1.6.2.16.2, 1.6.2.17, 1.6.2.17.1, 1.6.2.17.2, 1.6.2.17.3, 1.6.2.18, 1.6.2.18.1, 1.6.2.18.2, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.7.1, 1.4.8, 1.4.9, 1.4.10, 1.4.10.1, 1.4.11, 1.4.12, 1.4.12.1, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.16.1, 1.4.16.2, 1.4.17, 1.4.18, 1.4.19, 1.4.19.1, 1.4.19.2, 1.4.20, 1.4.20.1, 1.4.21, 1.4.21.1, 1.4.21.2, 1.4.22, 1.4.22.1, 1.4.22.2, 1.4.23, 1.4.23.1, 1.4.23.2, 1.4.24, 1.4.24.1, 1.4.25, 1.4.25.1, 1.4.26, 1.4.26.1, 1.4.26.2, 1.4.26.3, 1.4.27, 1.4.27.1, 1.4.28, 1.4.29, 1.4.29.1, 1.4.30, 1.4.31, 1.4.32, 1.4.33, 1.4.33.1, 1.4.34, 1.4.35, 1.4.36, 1.4.37, 1.4.38, 1.4.39, 1.4.39.1, 1.4.39.2, 1.4.40, 1.4.40.1, 1.4.40.2, 1.4.41, 1.4.41.1, 1.4.41.2 | — |
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