CVE-2017-18376 Explained : Impact and Mitigation

The User API in TheHive versions prior to 2.13.4 and 3.x before 3.3.1 contains a flaw in the authorization check mechanism, allowing users to elevate their privileges to match those of the administrator.

Understanding CVE-2017-18376

This CVE identifies an improper authorization check in TheHive's User API, enabling unauthorized privilege escalation.

What is CVE-2017-18376?

An authorization vulnerability in TheHive's User API permits users with limited access to escalate their privileges to those of an administrator.

The Impact of CVE-2017-18376

The vulnerability allows unauthorized users to gain elevated privileges within TheHive, potentially compromising sensitive data and system integrity.

Technical Details of CVE-2017-18376

The technical aspects of the CVE provide insight into the vulnerability's specifics.

Vulnerability Description

The flaw in the User API of TheHive versions before 2.13.4 and 3.x before 3.3.1 enables users with restricted access to escalate their privileges to match those of the administrator.

Affected Systems and Versions

TheHive versions prior to 2.13.4
TheHive 3.x versions before 3.3.1

Exploitation Mechanism

The vulnerability lies in the authorization check mechanism of the User API, allowing users to manipulate their access rights and gain unauthorized privileges.

Mitigation and Prevention

Protecting systems from CVE-2017-18376 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update TheHive to version 2.13.4 or 3.3.1 to mitigate the vulnerability.
Monitor user privileges and access levels to detect unauthorized escalations.

Long-Term Security Practices

Regularly review and update access control policies within TheHive.
Conduct security audits to identify and address authorization vulnerabilities.

Patching and Updates

Apply patches and updates provided by TheHive to address the authorization flaw and enhance system security.