Vulnerability Description
Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Caddyserver | Caddy | < 0.10.3 |
Related Weaknesses (CWE)
References
- https://bugs.gentoo.org/715214Third Party Advisory
- https://github.com/caddyserver/caddy/releases/tag/v0.10.13Release NotesThird Party Advisory
- https://bugs.gentoo.org/715214Third Party Advisory
- https://github.com/caddyserver/caddy/releases/tag/v0.10.13Release NotesThird Party Advisory
FAQ
What is CVE-2018-21246?
CVE-2018-21246 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode.
How severe is CVE-2018-21246?
CVE-2018-21246 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2018-21246?
Check the references section above for vendor advisories and patch information. Affected products include: Caddyserver Caddy.