medium
6
CWE
264
Advisory Published
Updated

CVE-2012-4737

First published: Fri Aug 31 2012(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Asterisk=1.8.0
Asterisk=1.8.0-beta1
Asterisk=1.8.0-beta2
Asterisk=1.8.0-beta3
Asterisk=1.8.0-beta4
Asterisk=1.8.0-beta5
Asterisk=1.8.0-rc2
Asterisk=1.8.0-rc3
Asterisk=1.8.0-rc4
Asterisk=1.8.0-rc5
Asterisk=1.8.1
Asterisk=1.8.1-rc1
Asterisk=1.8.1.1
Asterisk=1.8.1.2
Asterisk=1.8.2
Asterisk=1.8.2.1
Asterisk=1.8.2.2
Asterisk=1.8.2.3
Asterisk=1.8.2.4
Asterisk=1.8.3
Asterisk=1.8.3-rc1
Asterisk=1.8.3-rc2
Asterisk=1.8.3-rc3
Asterisk=1.8.3.1
Asterisk=1.8.3.2
Asterisk=1.8.3.3
Asterisk=1.8.4
Asterisk=1.8.4-rc1
Asterisk=1.8.4-rc2
Asterisk=1.8.4-rc3
Asterisk=1.8.4.1
Asterisk=1.8.4.2
Asterisk=1.8.4.3
Asterisk=1.8.4.4
Asterisk=1.8.5
Asterisk=1.8.5-rc1
Asterisk=1.8.5.0
Asterisk=1.8.6.0
Asterisk=1.8.6.0-rc1
Asterisk=1.8.6.0-rc2
Asterisk=1.8.6.0-rc3
Asterisk=1.8.7.0
Asterisk=1.8.7.0-rc1
Asterisk=1.8.7.0-rc2
Asterisk=1.8.7.1
Asterisk=1.8.8.0
Asterisk=1.8.8.0-rc1
Asterisk=1.8.8.0-rc2
Asterisk=1.8.8.0-rc3
Asterisk=1.8.8.0-rc4
Asterisk=1.8.8.0-rc5
Asterisk=1.8.8.1
Asterisk=1.8.8.2
Asterisk=1.8.9.0
Asterisk=1.8.9.0-rc1
Asterisk=1.8.9.0-rc2
Asterisk=1.8.9.0-rc3
Asterisk=1.8.9.1
Asterisk=1.8.9.2
Asterisk=1.8.9.3
Asterisk=1.8.10.0
Asterisk=1.8.10.0-rc1
Asterisk=1.8.10.0-rc2
Asterisk=1.8.10.0-rc3
Asterisk=1.8.10.0-rc4
Asterisk=1.8.10.1
Asterisk=1.8.11.0
Asterisk=1.8.11.0-rc2
Asterisk=1.8.11.0-rc3
Asterisk=1.8.11.1
Asterisk=1.8.12
Asterisk=1.8.12.0
Asterisk=1.8.12.0-rc1
Asterisk=1.8.12.0-rc2
Asterisk=1.8.12.0-rc3
Asterisk=1.8.13.0
Asterisk=1.8.13.0-rc1
Asterisk=1.8.13.0-rc2
Asterisk=1.8.13.1
Asterisk=1.8.14.0-rc1
Asterisk=1.8.14.0-rc2
Asterisk=1.8.14.1
Asterisk=1.8.15.0
Asterisk=1.8.15.0-rc1
Asterisk=10.0.0
Asterisk=10.0.0-beta1
Asterisk=10.0.0-beta2
Asterisk=10.0.0-rc1
Asterisk=10.0.0-rc2
Asterisk=10.0.0-rc3
Asterisk=10.0.1
Asterisk=10.1.0
Asterisk=10.1.0-rc1
Asterisk=10.1.0-rc2
Asterisk=10.1.1
Asterisk=10.1.2
Asterisk=10.1.3
Asterisk=10.2.0
Asterisk=10.2.0-rc1
Asterisk=10.2.0-rc2
Asterisk=10.2.0-rc3
Asterisk=10.2.0-rc4
Asterisk=10.2.1
Asterisk=10.3.0
Asterisk=10.3.0-rc2
Asterisk=10.3.0-rc3
Asterisk=10.3.1
Asterisk=10.4.0
Asterisk=10.4.0-rc1
Asterisk=10.4.0-rc2
Asterisk=10.4.0-rc3
Asterisk=10.4.1
Asterisk=10.4.2
Asterisk=10.5.0
Asterisk=10.5.0-rc1
Asterisk=10.5.0-rc2
Asterisk=10.5.1
Asterisk=10.6.0
Asterisk=10.6.0-rc1
Asterisk=10.6.0-rc2
Asterisk=10.6.1
Asterisk=10.7.0
Asterisk=10.7.0-rc1
Digium Asterisk Appliance Developer Kit=1.8.11-cert
Digium Asterisk Appliance Developer Kit=1.8.11-cert1
Digium Asterisk Appliance Developer Kit=1.8.11-cert2
Digium Asterisk Appliance Developer Kit=1.8.11-cert3
Digium Asterisk Appliance Developer Kit=1.8.11-cert4
Digium Asterisk Appliance Developer Kit=1.8.11-cert5
Digium Asterisk Appliance Developer Kit=1.8.11-cert6
Asterisk=10.5.2
Asterisk=10.6.0
Asterisk=10.6.1
Asterisk=10.7.0
Asterisk=c.3.0
Asterisk=c.3.1.0
Asterisk=c.3.1.1
Asterisk=c.3.2.2
Asterisk=c.3.2.3
Asterisk=c.3.3.2
Asterisk=c.3.6.2
Asterisk=c.3.6.3
Asterisk=c.3.6.4
Asterisk=c.3.7.5

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-4737?

    CVE-2012-4737 is classified as a high severity vulnerability that allows unauthorized access due to weak ACL enforcement in Asterisk.

  • How do I fix CVE-2012-4737?

    To fix CVE-2012-4737, upgrade Asterisk to version 1.8.15.1 or later, or 10.7.1 or later, as these versions contain the necessary security patches.

  • What versions of Asterisk are affected by CVE-2012-4737?

    CVE-2012-4737 affects Asterisk versions 1.8.x before 1.8.15.1, 10.x before 10.7.1, and several Certified Asterisk versions prior to the patched releases.

  • What type of vulnerability is CVE-2012-4737?

    CVE-2012-4737 is an access control vulnerability that fails to properly enforce ACL rules, potentially allowing unauthorized users to access sensitive resources.

  • Who is impacted by CVE-2012-4737?

    Organizations using affected versions of Asterisk are at risk from CVE-2012-4737, particularly those with misconfigured ACL settings.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203