CVE-2020-27663 : Security Advisory and Response

In GLPI before 9.5.3, ajax/getDropdownValue.php has an Insecure Direct Object Reference (IDOR) vulnerability that allows an attacker to read data from any itemType (e.g., Ticket, Users, etc.).

Understanding CVE-2020-27663

This CVE involves an IDOR vulnerability in GLPI before version 9.5.3, enabling unauthorized data access.

What is CVE-2020-27663?

The vulnerability in ajax/getDropdownValue.php in GLPI before 9.5.3 permits attackers to retrieve data from various item types.

The Impact of CVE-2020-27663

The vulnerability allows malicious actors to access sensitive information from different item types within GLPI, compromising data confidentiality.

Technical Details of CVE-2020-27663

This section provides detailed technical insights into the CVE.

Vulnerability Description

The IDOR vulnerability in ajax/getDropdownValue.php in GLPI before 9.5.3 allows unauthorized data retrieval from any itemType.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers exploit the IDOR vulnerability in ajax/getDropdownValue.php to access and extract data from various item types within GLPI.

Mitigation and Prevention

Protecting systems from CVE-2020-27663 is crucial to prevent unauthorized data access.

Immediate Steps to Take

Update GLPI to version 9.5.3 or later to patch the vulnerability.
Implement access controls to restrict unauthorized data access.

Long-Term Security Practices

Regularly monitor and audit access to sensitive data within GLPI.
Train users on secure coding practices and data protection measures.

Patching and Updates

Apply security patches promptly to address known vulnerabilities and enhance system security.