Input validation error in Consul and Consul Enterprise - CVE-2021-36213
Published: July 19, 2021
Vulnerability identifier: #VU54947
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-36213
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: HashiCorp
Affected software:
Consul
Consul Enterprise
Consul
Consul Enterprise
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the xds can generate a situation where a single L7 deny intention (with a default deny policy) results in an allow action.
How to mitigate CVE-2021-36213
Install updates from vendor's website.