Auth bypass in Hashicorp Consul

CVE-2020-28053

HashiCorp Consul and Consul Enterprise 1.2.0 up to 1.8.5 allowed operators with operator:read ACL permissions to read the Connect CA private key configuration. Fixed in 1.6.10, 1.7.10, and 1.8.6.

Vulnerability class: Broken Access Control

EPSS: 0.014 (69.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Product, x_refsource_MISC, Vendor Advisory)
  • cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
  • cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2020-28053?
CVE-2020-28053 is a medium-severity vulnerability in Hashicorp Consul, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2020-11-23.
How severe is CVE-2020-28053?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-28053 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.