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.
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Configuration 4 (hide)
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Information
Published : 2011-07-06 12:55
Updated : 2011-09-06 20:17
NVD link : CVE-2011-2536
Mitre link : CVE-2011-2536
JSON object : View
CWE
CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
Products Affected
digium
- asterisk