Auth bypass in Hashicorp Consul
CVE-2021-41805
HashiCorp Consul Enterprise before 1.8.17, 1.9.x before 1.9.11, and 1.10.x before 1.10.4 has Incorrect Access Control. An ACL token (with the default operator:write permissions) in one namespace can be used for unintended privilege escalation in a different namespace.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.348 (98.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.348 · newest: 0.348 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.hashicorp.com/blog/category/consul (Product, Vendor Advisory)
- discuss.hashicorp.com/t/hcsec-2021-29-consul-enterprise-namespace-default-acls-… (Vendor Advisory)
- security.netapp.com/advisory/ntap-20211229-0007/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-41805?
- CVE-2021-41805 is a high-severity vulnerability in Hashicorp Consul, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2021-12-12.
- How severe is CVE-2021-41805?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-41805 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.