CVE-2020-10660 : What You Need to Know

HashiCorp Vault and Vault Enterprise versions 0.9.0 through 1.3.3 may inadvertently include Groups in an Entity's Group membership that the Entity no longer has permissions for. This issue has been fixed in version 1.3.4.

Understanding CVE-2020-10660

This CVE involves a vulnerability in HashiCorp Vault and Vault Enterprise versions 0.9.0 through 1.3.3 that could lead to incorrect Group memberships for Entities.

What is CVE-2020-10660?

HashiCorp Vault and Vault Enterprise versions 0.9.0 through 1.3.3 may have an Entity's Group membership include Groups the Entity no longer has permissions to, potentially leading to unauthorized access.

The Impact of CVE-2020-10660

The vulnerability could result in Entities having access to Groups they should not have permissions for, compromising the security and integrity of the system.

Technical Details of CVE-2020-10660

This section provides more in-depth technical information about the CVE.

Vulnerability Description

Under certain circumstances, HashiCorp Vault and Vault Enterprise versions 0.9.0 through 1.3.3 may incorrectly include Groups in an Entity's Group membership.

Affected Systems and Versions

HashiCorp Vault versions 0.9.0 through 1.3.3
HashiCorp Vault Enterprise versions 0.9.0 through 1.3.3

Exploitation Mechanism

The vulnerability occurs due to a flaw in the permission management system, allowing Entities to retain access to Groups they should no longer be part of.

Mitigation and Prevention

To address CVE-2020-10660, follow these mitigation steps:

Immediate Steps to Take

Upgrade to HashiCorp Vault version 1.3.4 or newer.
Review and adjust Group memberships to ensure proper permissions.

Long-Term Security Practices

Regularly review and update access control policies.
Conduct periodic audits of Group memberships and permissions.

Patching and Updates

Apply patches and updates provided by HashiCorp to fix the vulnerability and enhance system security.