CVE-2020-8660

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory redhat.com Vendor Advisory envoyproxy.io
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2020-8660?
CVE-2020-8660 has been scored as a medium severity vulnerability.
How to fix CVE-2020-8660?
To fix CVE-2020-8660, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-8660 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-8660 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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