National Cyber Awareness System

Vulnerability Summary for CVE-2010-1224

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

Name: http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.2.diff

Type: Patch Information

Hyperlink:http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.2.diff

External Source: XF

Name: asterisk-cidr-security-bypass(56552)

Hyperlink:http://xforce.iss.net/xforce/xfdb/56552

External Source: VUPEN

Name: ADV-2010-0475

Type: Advisory

Hyperlink:http://www.vupen.com/english/advisories/2010/0475

External Source: BID

Name: 38424

Hyperlink:http://www.securityfocus.com/bid/38424

External Source: BUGTRAQ

Name: 20100225 AST-2010-003: Invalid parsing of ACL rules can compromise security

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/509757/100/0/threaded

External Source: SECUNIA

Name: 39096

Hyperlink:http://secunia.com/advisories/39096

External Source: SECUNIA

Name: 38752

Type: Advisory

Hyperlink:http://secunia.com/advisories/38752

External Source: OSVDB

Name: 62588

Hyperlink:http://osvdb.org/62588

External Source: FEDORA

Name: FEDORA-2010-3724

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html

External Source: CONFIRM

Name: http://downloads.asterisk.org/pub/security/AST-2010-003.html

Hyperlink:http://downloads.asterisk.org/pub/security/AST-2010-003.html

External Source: CONFIRM

Name: http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.1.diff

Hyperlink:http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.1.diff

External Source: CONFIRM

Name: http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.0.diff

Hyperlink:http://downloads.asterisk.org/pub/security/AST-2010-003-1.6.0.diff