Vulnerability in Envoyproxy Envoy
CVE-2020-8660
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.
EPSS: 0.006 (45.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Envoyproxy Envoy
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8660?
- CVE-2020-8660 is a medium-severity vulnerability in Envoyproxy Envoy, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2020-03-04.
- How severe is CVE-2020-8660?
- Medium severity. CVSS v3 base score is 5.3 out of 10.