CVE-2020-13170 : What You Need to Know
Learn about CVE-2020-13170 affecting HashiCorp Consul and Consul Enterprise, allowing local tokens to bypass scope enforcement. Find mitigation steps and version fixes.
HashiCorp Consul and Consul Enterprise had a vulnerability that allowed local tokens issued by a primary data center to bypass scope enforcement when replication to a secondary data center was not enabled. This issue was introduced in version 1.4.0 and was fixed in versions 1.6.6 and 1.7.4.
Understanding CVE-2020-13170
This CVE relates to a security vulnerability in HashiCorp Consul and Consul Enterprise that affected the scope enforcement of local tokens.
What is CVE-2020-13170?
CVE-2020-13170 is a vulnerability in HashiCorp Consul and Consul Enterprise that allowed local tokens issued by a primary data center to operate without proper scope enforcement when replication to a secondary data center was not activated.
The Impact of CVE-2020-13170
The vulnerability could potentially lead to unauthorized access and misuse of tokens within the affected Consul environments, compromising the security and integrity of the data.
Technical Details of CVE-2020-13170
This section provides more technical insights into the vulnerability.
Vulnerability Description
The issue in HashiCorp Consul and Consul Enterprise allowed local tokens from a primary data center to bypass scope enforcement when replication to a secondary data center was not enabled.
Affected Systems and Versions
- Product: HashiCorp Consul and Consul Enterprise
- Versions affected: 1.4.0
Exploitation Mechanism
The vulnerability could be exploited by issuing local tokens in a primary data center without the necessary scope enforcement, potentially leading to unauthorized access.
Mitigation and Prevention
To address CVE-2020-13170, follow these mitigation steps:
Immediate Steps to Take
- Upgrade affected systems to version 1.6.6 or 1.7.4, where the vulnerability has been fixed.
- Enable replication to secondary data centers to ensure proper scope enforcement.
Long-Term Security Practices
- Regularly update and patch HashiCorp Consul and Consul Enterprise to the latest versions.
- Implement a robust token management policy to prevent unauthorized access.
Patching and Updates
Ensure that all systems running HashiCorp Consul and Consul Enterprise are regularly updated with the latest security patches and fixes.