CVE-2021-41802 : Vulnerability Insights and Analysis
Learn about CVE-2021-41802 affecting HashiCorp Vault versions, allowing users to escalate privileges by merging identities. Mitigation steps and patching information provided.
HashiCorp Vault and Vault Enterprise through 1.7.4 and 1.8.3 allowed a user with write permission to acquire another user's policies by merging identities. Fixed in versions 1.7.5 and 1.8.4.
Understanding CVE-2021-41802
HashiCorp Vault and Vault Enterprise versions allowed privilege escalation via merging entity aliases.
What is CVE-2021-41802?
The vulnerability in HashiCorp Vault allowed a user with write permission to acquire policies of another user by merging identities.
The Impact of CVE-2021-41802
- Base Score: 2.9 (Low)
- Severity: Low
- Attack Complexity: Low
- Attack Vector: Adjacent Network
- Privileges Required: High
- User Interaction: Required
- Scope: Changed
- Confidentiality Impact: Low
- Integrity Impact: None
- Availability Impact: None
Technical Details of CVE-2021-41802
The technical details of the vulnerability in HashiCorp Vault and Vault Enterprise.
Vulnerability Description
The vulnerability allowed a user to escalate privileges by acquiring another user's policies through merging identities.
Affected Systems and Versions
- Affected Versions: 1.7.4 and 1.8.3
Exploitation Mechanism
The vulnerability required a user with write permission merging entity aliases to escalate privileges.
Mitigation and Prevention
Steps to mitigate and prevent exploitation of CVE-2021-41802.
Immediate Steps to Take
- Upgrade to Vault and Vault Enterprise versions 1.7.5 or 1.8.4
- Review and adjust access permissions
- Monitor for unauthorized policy access
Long-Term Security Practices
- Regularly review and update user permissions
- Employ the principle of least privilege
- Educate users on proper data access practices
Patching and Updates
- Apply patches from HashiCorp promptly
- Stay informed about security updates from the vendor