Computer Security
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Asterisk user account enumeration
SecurityVulns ID:9565
Threat Level:
Description:Different replies for invalid username and password in IAX2 authentication.
Affected:ASTERISK : Asterisk 1.2
 DIGIUM : Asterisk 1.4
 ASTERISK : Asterisk s800i
 ASTERISK : Asterisk 1.6
CVE:CVE-2009-0041 (IAX2 in Asterisk Open Source 1.2.x before 1.2.31, 1.4.x before 1.4.23-rc4, and 1.6.x before; Business Edition A.x.x, B.x.x before B.2.5.7, C.1.x.x before C.1.10.4, and C.2.x.x before C.; and s800i 1.2.x before 1.3.0 responds differently to a failed login attempt depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.)
Original documentdocumentASTERISK, AST-2009-001: Information leak in IAX2 authentication (09.01.2009)

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