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| Description: | | An issue was discovered in Asterisk Open Source 13.x before 13.21.1, 14.x before 14.7.7, and 15.x before 15.4.1 and Certified Asterisk 13.18-cert before 13.18-cert4 and 13.21-cert before 13.21-cert2. When endpoint specific ACL rules block a SIP request, they respond with a 403 forbidden. However, if an endpoint is not identified, then a 401 unauthorized response is sent. This vulnerability just discloses which requests hit a defined endpoint. The ACL rules cannot be bypassed to gain access to the disclosed endpoints. |
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| Impact: | | Attackers can exploit this issue to obtain sensitive information that may lead to other attacks. |
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| Affected OS: | | Network Device, Solaris, FreeBSD, Windows, Mac OS, iOS, Other Unix, Linux, Others, Android |
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| Reference: | | http://downloads.asterisk.org/pub/security/AST-2018-008.html
SecurityFocusBID:104455
https://issues.asterisk.org/jira/browse/ASTERISK-27818
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