What’s Vulnerable › Vulnerabilities

CVE-2012-4737

• Severity: medium (CVSS 6.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-08-31 · updated 2026-06-16
• Weakness: CWE-264

Description

channels/chan_iax2.c in Asterisk Open Source 1.8.x before 1.8.15.1 and 10.x before 10.7.1, Certified Asterisk 1.8.11 before 1.8.11-cert7, Asterisk Digiumphones 10.x.x-digiumphones before 10.7.1-digiumphones, and Asterisk Business Edition C.3.x before C.3.7.6 does not enforce ACL rules during certain uses of peer credentials, which allows remote authenticated users to bypass intended outbound-call restrictions by leveraging the availability of these credentials.

Affected products

• Digium Asterisk: 1.8.0, 1.8.0-beta1, 1.8.0-beta2, 1.8.0-beta3, 1.8.0-beta4, 1.8.0-beta5 (+128)
• Digium Certified Asterisk: 1.8.11-cert, 1.8.11-cert1, 1.8.11-cert2, 1.8.11-cert3, 1.8.11-cert4, 1.8.11-cert5 (+1)

References

• http://downloads.asterisk.org/pub/security/AST-2012-013.html
• http://secunia.com/advisories/50687
• http://secunia.com/advisories/50756
• http://www.debian.org/security/2012/dsa-2550
• http://www.securityfocus.com/bid/55335
• http://www.securitytracker.com/id?1027461
• http://downloads.asterisk.org/pub/security/AST-2012-013.html
• http://secunia.com/advisories/50687
• http://secunia.com/advisories/50756
• http://www.debian.org/security/2012/dsa-2550
• http://www.securityfocus.com/bid/55335
• http://www.securitytracker.com/id?1027461

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