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CVE-2011-2536
Published: Jul 6, 2011
Modified: Aug 6, 2024
PUBLISHED
Description
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.4.x before 1.4.41.2, 1.6.2.x before 1.6.2.18.2, and 1.8.x before 1.8.4.4, and Asterisk Business Edition C.3.x before C.3.7.3, disregards the alwaysauthreject option and generates different responses for invalid SIP requests depending on whether the user account exists, which allows remote attackers to enumerate account names via a series of requests.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
http://downloads.asterisk.org/pub/security/AST-2011-011-1.8.diff
x_refsource_CONFIRM
http://downloads.asterisk.org/pub/security/AST-2011-011.html
x_refsource_CONFIRM
1025734
vdb-entry
x_refsource_SECTRACK
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