CVE-2019-18626 Explained : Impact and Mitigation

Harris Ormed Self Service before version 2019.1.4 had a vulnerability that allowed authenticated users to access W-2 forms of other users, potentially exposing sensitive information.

Understanding CVE-2019-18626

What is CVE-2019-18626?

Prior to version 2019.1.4, Harris Ormed Self Service had a vulnerability that allowed a user with authentication to access W-2 forms of other users by using any empNo value with a specific URI.

The Impact of CVE-2019-18626

This vulnerability exposed confidential data such as employee tax information, social security numbers, home addresses, and other sensitive details.

Technical Details of CVE-2019-18626

Vulnerability Description

Harris Ormed Self Service before 2019.1.4 allows an authenticated user to view W-2 forms belonging to other users via an arbitrary empNo value to a specific URI, thus exposing sensitive information.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers could exploit this vulnerability by using any empNo value with the URI to access W-2 forms of other users.

Mitigation and Prevention

Immediate Steps to Take

Upgrade to version 2019.1.4 or newer to mitigate this vulnerability.
Monitor user access and restrict permissions to sensitive data.

Long-Term Security Practices

Regularly review and update access controls to prevent unauthorized access.
Conduct security training for users to raise awareness of data protection.

Patching and Updates

Stay informed about security updates and apply patches promptly to address known vulnerabilities.