CVE-2019-1937 : Vulnerability Insights and Analysis

Cisco Integrated Management Controller Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data Authentication Bypass Vulnerability

Understanding CVE-2019-1937

A weakness has been identified in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data. This vulnerability allows a remote attacker to bypass authentication and gain administrator privileges.

What is CVE-2019-1937?

The vulnerability in Cisco IMC Supervisor, UCS Director, and UCS Director Express for Big Data enables an attacker to obtain a valid session token with administrator privileges without authentication. This occurs due to inadequate validation of request headers during the authentication process.

The Impact of CVE-2019-1937

Exploiting this vulnerability allows an attacker to acquire a session token, granting unrestricted administrator access to the affected device.

Technical Details of CVE-2019-1937

Vulnerability Description

The vulnerability in Cisco IMC Supervisor, UCS Director, and UCS Director Express for Big Data allows unauthorized users to obtain administrator privileges by bypassing authentication.

Affected Systems and Versions

Vendor: Cisco
Product: Cisco Unified Computing System Director
Versions Affected: Unspecified, less than 6.7.3.0

Exploitation Mechanism

To exploit this vulnerability, an attacker needs to send a sequence of malicious requests to the impacted device, enabling them to gain unrestricted administrator access.

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security patches provided by Cisco to address this vulnerability.
Monitor network traffic for any suspicious activity that could indicate exploitation attempts.

Long-Term Security Practices

Regularly update and patch all software and firmware to prevent security vulnerabilities.
Implement strong network segmentation and access controls to limit unauthorized access.

Patching and Updates

Cisco has released patches to address this vulnerability. Ensure that all affected systems are updated with the latest security fixes.