CVE-2020-8660 Information

Description

CNCF Envoy through 1.13.0 TLS inspector bypass. TLS inspector could have been bypassed (not recognized as a TLS client) by a client using only TLS 1.3. Because TLS extensions (SNI ALPN) were not inspected those connections might have been matched to a wrong filter chain possibly bypassing some security restrictions in the process.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Reference

https://access.redhat.com/errata/RHSA-2020:0734 https://github.com/envoyproxy/envoy/security/advisories/GHSA-c4g8-7grc-5wvx https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3