Main Vulnerability Database Vulnerabilities #VU24940

Improper Certificate Validation in Nomad Enterprise and Nomad - CVE-2020-7956

Published: February 5, 2020

Vulnerability identifier: #VU24940

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-7956

CWE-ID: CWE-295

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a man-in-the-middle (MiTM) attack.

The vulnerability exists due to the affected software incorrectly validate role/region associated with TLS certificates used for mTLS RPC. A remote attacker can supply a specially crafted TLS certificate, perform a man-in-the-middle attack and escalate privileges on the target system.

Affected software

Nomad Enterprise
Nomad

How to mitigate CVE-2020-7956

Install updates from vendor's website.

Nomad Enterprise - update to 0.10.3
Nomad - update to 0.10.3

External References

Related Security Bulletins