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.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history
Third Party Advisory x_refsource_misc
https://github.com/envoyproxy/envoy/security/advisories/GHSA-c4g8-7grc-5wvx
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0734
Scores
CVSS v3
5.3
EPSS
0.0061
EPSS Percentile
44.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Details
CWE
CWE-345
Status
published
Products (1)
envoyproxy/envoy
< 1.12.3
Published
Mar 04, 2020
Tracked Since
Feb 18, 2026