CVE-2010-1224 Information

Description

main/acl.c in Asterisk Open Source 1.6.0.x before 1.6.0.25 1.6.1.x before 1.6.1.17 and 1.6.2.x before 1.6.2.5 does not properly enforce remote host access controls when CIDR notation /0\ is used in permit= and deny= configuration rules which causes an improper arithmetic shift and might allow remote attackers to bypass ACL rules and access services from unauthorized hosts.

Reference

http://downloads.asterisk.org/pub/security/AST-2010-003.html http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.0.diff http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.1.diff http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.2.diff http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html http://osvdb.org/62588 http://secunia.com/advisories/38752 http://secunia.com/advisories/39096 http://www.securityfocus.com/archive/1/509757/100/0/threaded http://www.securityfocus.com/bid/38424 http://www.vupen.com/english/advisories/2010/0475 https://exchange.xforce.ibmcloud.com/vulnerabilities/56552