CVE-2020-7956 Explained : Impact and Mitigation
Learn about CVE-2020-7956 affecting HashiCorp Nomad and Nomad Enterprise up to 0.10.2, leading to privilege escalation. Find mitigation steps and update recommendations here.
HashiCorp Nomad and Nomad Enterprise up to 0.10.2 incorrectly validated role/region associated with TLS certificates used for mTLS RPC, leading to privilege escalation. Fixed in 0.10.3.
Understanding CVE-2020-7956
This CVE involves HashiCorp Nomad and Nomad Enterprise versions up to 0.10.2 that had a vulnerability related to TLS certificate validation, potentially allowing privilege escalation.
What is CVE-2020-7956?
CVE-2020-7956 is a security vulnerability in HashiCorp Nomad and Nomad Enterprise versions up to 0.10.2 that could be exploited for privilege escalation due to incorrect validation of role/region associated with TLS certificates used for mTLS RPC.
The Impact of CVE-2020-7956
The vulnerability could allow malicious actors to escalate their privileges within affected systems, potentially leading to unauthorized access and control.
Technical Details of CVE-2020-7956
This section provides more technical insights into the vulnerability.
Vulnerability Description
HashiCorp Nomad and Nomad Enterprise up to version 0.10.2 incorrectly validated role/region associated with TLS certificates used for mTLS RPC, enabling privilege escalation.
Affected Systems and Versions
- HashiCorp Nomad and Nomad Enterprise versions up to 0.10.2
Exploitation Mechanism
The vulnerability could be exploited by manipulating the role/region associated with TLS certificates used for mTLS RPC, allowing attackers to escalate privileges.
Mitigation and Prevention
Protect your systems from CVE-2020-7956 with the following steps:
Immediate Steps to Take
- Upgrade to version 0.10.3 of HashiCorp Nomad or Nomad Enterprise to apply the necessary security fixes.
- Monitor for any unauthorized access or unusual activities on your systems.
Long-Term Security Practices
- Regularly update and patch your software to prevent known vulnerabilities.
- Implement strong access controls and least privilege principles to limit the impact of potential security breaches.
Patching and Updates
Ensure timely installation of security patches and updates to keep your systems secure and protected.