Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.3, 1.6.0.x before 1.6.0.17, and 1.6.1.x before 1.6.1.9; Business Edition A.x.x, B.x.x before B.2.5.12, C.2.x.x before C.2.4.5, and C.3.x.x before C.3.2.2; AsteriskNOW 1.5; and s800i 1.3.x before 1.3.0.5 generate different error messages depending on whether a SIP username is valid, which allows remote attackers to enumerate valid usernames via multiple crafted REGISTER messages with inconsistent usernames in the URI in the To header and the Digest in the Authorization header.
                
            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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History
                    No history.
Information
                Published : 2009-11-10 18:30
Updated : 2009-12-23 06:58
NVD link : CVE-2009-3727
Mitre link : CVE-2009-3727
CVE.ORG link : CVE-2009-3727
JSON object : View
Products Affected
                digium
- asterisk
 - asterisknow
 - s800i
 
CWE
                
                    
                        
                        CWE-200
                        
            Exposure of Sensitive Information to an Unauthorized Actor
