Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Envoyproxy | Envoy | < 1.12.3 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2020:0734Third Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-c4g8-7grc-5wvxThird Party Advisory
- https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_historyVendor Advisory
- https://access.redhat.com/errata/RHSA-2020:0734Third Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-c4g8-7grc-5wvxThird Party Advisory
- https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_historyVendor Advisory
FAQ
What is CVE-2020-8660?
CVE-2020-8660 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 insp...
How severe is CVE-2020-8660?
CVE-2020-8660 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-8660?
Check the references section above for vendor advisories and patch information. Affected products include: Envoyproxy Envoy.