CVE-2021-40851 Explained : Impact and Mitigation

This CVE-2021-40851 article provides details about the TCMAN GIM SQL injection vulnerability.

Understanding CVE-2021-40851

CVE-2021-40851 is a vulnerability found in TCMAN GIM, potentially allowing a remote attacker to obtain sensitive information.

What is CVE-2021-40851?

TCMAN GIM is exposed to a lack of authorization across all webservice methods in /PC/WebService.asmx, creating a risk of information disclosure.

The Impact of CVE-2021-40851

The vulnerability has a CVSS base score of 7.5 (High severity) with a confidentiality impact of High but no availability impact.

Technical Details of CVE-2021-40851

This section delves into the specific technical aspects of the vulnerability.

Vulnerability Description

The issue arises from improper authentication in TCMAN GIM, leaving it susceptible to SQL injection attacks through webservice methods.

Affected Systems and Versions

Product: GIM
Vendor: TCMAN
Vulnerable Versions: 8.0, 11.0

Exploitation Mechanism

The lack of proper authorization in webservice methods enables a remote attacker to exploit the vulnerability to retrieve sensitive data.

Mitigation and Prevention

Strategies to address and prevent the CVE-2021-40851 vulnerability.

Immediate Steps to Take

Update TCMAN GIM to the patched version 8.0.1 Release 31734
Review and restrict access to webservice methods

Long-Term Security Practices

Regularly monitor and audit access controls
Implement secure coding practices to prevent injection attacks

Patching and Updates

Apply vendor-provided patches and updates promptly to ensure the security of the system.