Vulnerability in Envoyproxy Envoy
CVE-2022-21654
Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when some cert validation settings have changed from their default configuration. The only workaround for this issue is to ensure that default tls settings are used. Users are advised to upgrade.
Vulnerability class: Improper Certificate Validation
EPSS: 0.011 (61.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Envoyproxy Envoy — versions >= 1.7.0, < 1.18.6, >= 1.19.0, < 1.19.3, >= 1.20.0, < 1.20.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-21654?
- CVE-2022-21654 is a high-severity vulnerability in Envoyproxy Envoy, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2022-02-22.
- How severe is CVE-2022-21654?
- High severity. CVSS v3 base score is 7.4 out of 10.
- Is CVE-2022-21654 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.