An issue was discovered in Asterisk Open Source 13.x before 13.21.1, 14.x before 14.7.7…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* | 13.0.0 to before 13.21.1; after 14.0.0, before 14.7.7; 15.0.0 to before 15.4.1 | Vulnerable | Digium |
| cpe:2.3:a:digium:certified_asterisk:13.18:cert1:*:*:*:*:*:* | 13.18 cert1 | Vulnerable | Digium |
| cpe:2.3:a:digium:certified_asterisk:13.18:cert2:*:*:*:*:*:* | 13.18 cert2 | Vulnerable | Digium |
| cpe:2.3:a:digium:certified_asterisk:13.18:cert3:*:*:*:*:*:* | 13.18 cert3 | Vulnerable | Digium |
| cpe:2.3:a:digium:certified_asterisk:13.21:cert1:*:*:*:*:*:* | 13.21 cert1 | Vulnerable | Digium |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
- cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* Versions 13.0.0 to before 13.21.1; after 14.0.0, before 14.7.7; 15.0.0 to before 15.4.1 Vulnerable ·Digium
- cpe:2.3:a:digium:certified_asterisk:13.18:cert1:*:*:*:*:*:* Versions 13.18 cert1 Vulnerable ·Digium
- cpe:2.3:a:digium:certified_asterisk:13.18:cert2:*:*:*:*:*:* Versions 13.18 cert2 Vulnerable ·Digium
- cpe:2.3:a:digium:certified_asterisk:13.18:cert3:*:*:*:*:*:* Versions 13.18 cert3 Vulnerable ·Digium
- cpe:2.3:a:digium:certified_asterisk:13.21:cert1:*:*:*:*:*:* Versions 13.21 cert1 Vulnerable ·Digium
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2018-12227
- 2026-10-03 Alias added: GHSA-cvxq-f65j-c34v
References
Sources
- CVE-2018-12227 · CVE Program
- CVE-2018-12227 · NVD
- FIRST EPSS
- GHSA-cvxq-f65j-c34v · GitHub Advisory Database · CC BY 4.0
- CVE-2018-12227 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences