Auth bypass in Hashicorp Consul
CVE-2021-41803
HashiCorp Consul 1.8.1 up to 1.11.8, 1.12.4, and 1.13.1 do not properly validate the node or segment names prior to interpolation and usage in JWT claim assertions with the auto config RPC. Fixed in 1.11.9, 1.12.5, and 1.13.2."
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H.
EPSS exploit prediction
EPSS: 0.011 (63.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.011 · change: +0.002
Affected products
- Hashicorp Consul — versions 1.12.4, 1.13.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.hashicorp.com/blog/category/consul (Vendor Advisory)
- discuss.hashicorp.com/t/hcsec-2022-19-consul-auto-config-jwt-authorization-miss… (Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-41803?
- CVE-2021-41803 is a high-severity vulnerability in Hashicorp Consul, classified under Missing Authorization. CVSS score: 7.1/10. Published 2022-09-23.
- How severe is CVE-2021-41803?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2021-41803 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.