Vulnerability Description
Traefik is an HTTP reverse proxy and load balancer. Prior to version 2.6.1, Traefik skips the router transport layer security (TLS) configuration when the host header is a fully qualified domain name (FQDN). For a request, the TLS configuration choice can be different than the router choice, which implies the use of a wrong TLS configuration. When sending a request using FQDN handled by a router configured with a dedicated TLS configuration, the TLS configuration falls back to the default configuration that might not correspond to the configured one. If the CNAME flattening is enabled, the selected TLS configuration is the SNI one and the routing uses the CNAME value, so this can skip the expected TLS configuration. Version 2.6.1 contains a patch for this issue. As a workaround, one may add the FDQN to the host rule. However, there is no workaround if the CNAME flattening is enabled.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Traefik | Traefik | < 2.6.1 |
| Oracle | Communications Unified Inventory Management | 7.5.0 |
Related Weaknesses (CWE)
References
- https://github.com/traefik/traefik/pull/8764Issue TrackingPatchThird Party Advisory
- https://github.com/traefik/traefik/releases/tag/v2.6.1Release NotesThird Party Advisory
- https://github.com/traefik/traefik/security/advisories/GHSA-hrhx-6h34-j5hcPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlThird Party Advisory
- https://github.com/traefik/traefik/pull/8764Issue TrackingPatchThird Party Advisory
- https://github.com/traefik/traefik/releases/tag/v2.6.1Release NotesThird Party Advisory
- https://github.com/traefik/traefik/security/advisories/GHSA-hrhx-6h34-j5hcPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlThird Party Advisory
FAQ
What is CVE-2022-23632?
CVE-2022-23632 is a vulnerability with a CVSS score of 7.4 (HIGH). Traefik is an HTTP reverse proxy and load balancer. Prior to version 2.6.1, Traefik skips the router transport layer security (TLS) configuration when the host header is a fully qualified domain name ...
How severe is CVE-2022-23632?
CVE-2022-23632 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-23632?
Check the references section above for vendor advisories and patch information. Affected products include: Traefik Traefik, Oracle Communications Unified Inventory Management.