Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Digium | Asterisk | >= 13.0.0, < 13.21.1 |
| Digium | Certified Asterisk | 13.18 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- http://downloads.asterisk.org/pub/security/AST-2018-008.htmlVendor Advisory
- http://www.securityfocus.com/bid/104455Third Party AdvisoryVDB Entry
- https://issues.asterisk.org/jira/browse/ASTERISK-27818PatchVendor 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 AdvisoryVDB Entry
- https://issues.asterisk.org/jira/browse/ASTERISK-27818PatchVendor Advisory
- https://security.gentoo.org/glsa/201811-11Third Party Advisory
- https://www.debian.org/security/2018/dsa-4320Third Party Advisory
FAQ
What is CVE-2018-12227?
CVE-2018-12227 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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. ...
How severe is CVE-2018-12227?
CVE-2018-12227 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-12227?
Check the references section above for vendor advisories and patch information. Affected products include: Digium Asterisk, Digium Certified Asterisk, Debian Debian Linux.