CVE-2020-13526 Explained : Impact and Mitigation

A SQL injection vulnerability in ProcessMaker 3.4.11 allows attackers to execute malicious SQL queries through specially crafted HTTP requests.

Understanding CVE-2020-13526

This CVE involves a security flaw in ProcessMaker 3.4.11 that enables SQL injection attacks.

What is CVE-2020-13526?

The vulnerability arises from improper handling of sort parameters in ProcessMaker 3.4.11.
Attackers can exploit this issue by sending crafted HTTP requests to trigger SQL injection.
Specifically, the reportTables_Ajax and clientSetupAjax pages are susceptible to SQL injection via the sort parameter.
An attacker can exploit this vulnerability with an authenticated HTTP request.

The Impact of CVE-2020-13526

CVSS Score: 6.4 (Medium Severity)
Attack Vector: Network
Attack Complexity: Low
Confidentiality and Integrity Impact: Low
Privileges Required: Low
Scope: Changed
User Interaction: None
Availability Impact: None

Technical Details of CVE-2020-13526

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability allows for SQL injection attacks through the sort parameter in ProcessMaker 3.4.11.

Affected Systems and Versions

Product: ProcessMaker
Version: 3.4.11

Exploitation Mechanism

Attackers can exploit the vulnerability by sending specially crafted HTTP requests to the reportTables_Ajax and clientSetupAjax pages.

Mitigation and Prevention

Protecting systems from CVE-2020-13526 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update ProcessMaker to a patched version that addresses the SQL injection vulnerability.
Monitor and filter input to prevent malicious SQL queries.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and remediate vulnerabilities.
Educate users on secure coding practices to prevent SQL injection attacks.

Patching and Updates

Apply security patches provided by ProcessMaker to fix the SQL injection vulnerability.