CVE-2018-5761 Explained : Impact and Mitigation

Rubrik CDM versions 3.x and 4.x prior to 4.0.4-p2 have a vulnerability in vCenter access that could be exploited through a man-in-the-middle attack, potentially exposing user credentials.

Understanding CVE-2018-5761

This CVE involves a security flaw in Rubrik CDM versions 3.x and 4.x that allows attackers to potentially obtain user credentials due to improper TLS certificate verification.

What is CVE-2018-5761?

The vulnerability in Rubrik CDM versions 3.x and 4.x before 4.0.4-p2 enables attackers to exploit vCenter access through a man-in-the-middle attack, compromising user credentials.

The Impact of CVE-2018-5761

This vulnerability could lead to unauthorized access to Rubrik user credentials configured for vCenter access, posing a risk of data breaches and unauthorized system control.

Technical Details of CVE-2018-5761

Rubrik CDM versions 3.x and 4.x prior to 4.0.4-p2 are affected by this vulnerability.

Vulnerability Description

The flaw allows attackers to intercept vCenter access, potentially obtaining Rubrik user credentials as the clusters do not properly verify TLS certificates presented by vCenter.

Affected Systems and Versions

Product: Rubrik CDM
Versions: 3.x and 4.x before 4.0.4-p2

Exploitation Mechanism

Attackers can exploit this vulnerability through man-in-the-middle attacks on vCenter access, bypassing TLS certificate verification.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Upgrade Rubrik CDM to version 4.0.4-p2 or later to mitigate the vulnerability.
Implement network security measures to detect and prevent man-in-the-middle attacks.

Long-Term Security Practices

Regularly update and patch Rubrik CDM to ensure the latest security fixes are in place.
Train users on recognizing and avoiding potential man-in-the-middle attack vectors.

Patching and Updates

Apply security patches and updates provided by Rubrik promptly to address known vulnerabilities and enhance system security.