CVE-2018-12227

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.

• CWE-200

• http://downloads.asterisk.org/pub/security/AST-2018-008.htmlVendor Advisory
• http://www.securityfocus.com/bid/104455Third Party Advisory, VDB Entry
• https://issues.asterisk.org/jira/browse/ASTERISK-27818Patch, Vendor Advisory
• https://security.gentoo.org/glsa/201811-11Third Party Advisory
• https://www.debian.org/security/2018/dsa-4320Third Party Advisory
• http://downloads.asterisk.org/pub/security/AST-2018-008.htmlVendor Advisory
• http://www.securityfocus.com/bid/104455Third Party Advisory, VDB Entry
• https://issues.asterisk.org/jira/browse/ASTERISK-27818Patch, Vendor Advisory
• https://security.gentoo.org/glsa/201811-11Third Party Advisory
• https://www.debian.org/security/2018/dsa-4320Third Party Advisory

Published

Jun 12, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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