Vulnerability · Published Sep 7, 2021 · Assigned by mitre
CVE-2021-37219
High 8.8
In plain English
A high-severity security flaw in the github.com/hashicorp/consul package (Go). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.1%top 33.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
HashiCorp Consul and Consul Enterprise 1.10.1 Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.8.15, 1.9.9 and 1.10.2.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/hashicorp/consul | 1.10.2 | GHSA-ccw8-7688-vqx4 |
| Go | github.com/hashicorp/consul | 1.9.9 | GHSA-ccw8-7688-vqx4 |
| Go | github.com/hashicorp/consul | 1.8.15 | GHSA-ccw8-7688-vqx4 |
| Go | github.com/hashicorp/consul | 1.10.2, 1.8.15, 1.9.9 | GO-2022-0593 |
| Ubuntu:22.04:LTS | consul | no fix listed | UBUNTU-CVE-2021-37219 |
Affected products (as reported)
References
- https://www.hashicorp.com/blog/category/consul x_refsource_MISC
- https://discuss.hashicorp.com/t/hcsec-2021-22-consul-raft-rpc-privilege-escalation/29024 x_refsource_MISC
- GLSA-202207-01 vendor-advisory, x_refsource_GENTOO