SB2020061530 - Improper Authentication in Caddy Caddy
Published: June 15, 2020 Updated: July 17, 2020
Security Bulletin ID
SB2020061530
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authentication (CVE-ID: CVE-2018-21246)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode.
Remediation
Install update from vendor's website.