CVE-2021-3024 : Exploit Details and Defense Strategies

HashiCorp Vault and Vault Enterprise disclosed the internal IP address of the Vault node when responding to some invalid, unauthenticated HTTP requests. This CVE has been fixed in versions 1.6.2 and 1.5.7.

Understanding CVE-2021-3024

This CVE involves the exposure of internal IP addresses in some circumstances when handling unauthenticated HTTP requests.

What is CVE-2021-3024?

CVE-2021-3024 is a vulnerability in HashiCorp Vault and Vault Enterprise that leaks the internal IP address of the Vault node during responses to certain types of invalid, unauthenticated HTTP requests.

The Impact of CVE-2021-3024

The exposure of internal IP addresses can potentially aid attackers in further exploiting the system by revealing sensitive network information.

Technical Details of CVE-2021-3024

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in HashiCorp Vault and Vault Enterprise allows the disclosure of internal IP addresses when dealing with specific types of unauthenticated HTTP requests.

Affected Systems and Versions

All versions up to 1.6.1 of HashiCorp Vault are affected. The vulnerability has been addressed in versions 1.6.2 and 1.5.7.

Exploitation Mechanism

Attackers can leverage the exposed internal IP addresses to gather intelligence for potential targeted attacks on the system.

Mitigation and Prevention

It is crucial to take immediate steps to secure systems against this vulnerability.

Immediate Steps to Take

Update HashiCorp Vault to version 1.6.2 or 1.5.7 to mitigate the risk of exposing internal IP addresses.

Long-Term Security Practices

Implement strict network access controls and regularly monitor and audit traffic to detect any abnormal or malicious activities.

Patching and Updates

Regularly apply security patches and updates provided by HashiCorp to ensure that your systems are protected against known vulnerabilities.