GO-2020-0043

    Dashboard / Vulnerabilities / GO-2020-0043

    GO-2020-0043

    Published: 14 Apr 2021Last Modified: 20 May 2024

    Summary: Authentication bypass in github.com/mholt/caddy

    Details: Due to improper TLS verification when serving traffic for multiple SNIs, an attacker may bypass TLS client authentication by indicating an SNI during the TLS handshake that is different from the name in the HTTP Host header.

    References: https://github.com/caddyserver/caddy/pull/2099, https://github.com/caddyserver/caddy/commit/4d9ee000c8d2cbcdd8284007c1e0f2da7bc3c7c3, https://bugs.gentoo.org/715214

    Affected packages

    Package

    Name: github.com/mholt/caddy

    Purl: pkg:golang/github.com/mholt/caddy

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.10.13

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GO-2020-0043 | CVE-DB