CVE-2017-12064 : Exploit Details and Defense Strategies

A crafted name can be used by attackers to bypass intended access restrictions in OpenEMR versions 5.0.0 and earlier through the csv_log_html function found in library/edihistory/edih_csv_inc.php.

Understanding CVE-2017-12064

This CVE involves a vulnerability in OpenEMR that allows attackers to circumvent access restrictions using a specially crafted name.

What is CVE-2017-12064?

The csv_log_html function in OpenEMR 5.0.0 and prior versions can be exploited by attackers to bypass intended access controls by utilizing a manipulated name.

The Impact of CVE-2017-12064

This vulnerability could lead to unauthorized access to sensitive information within OpenEMR, potentially compromising patient data and system integrity.

Technical Details of CVE-2017-12064

The following technical details outline the specifics of this CVE.

Vulnerability Description

The csv_log_html function in library/edihistory/edih_csv_inc.php in OpenEMR versions 5.0.0 and earlier allows attackers to bypass access restrictions through a crafted name.

Affected Systems and Versions

Product: OpenEMR
Vendor: N/A
Versions affected: 5.0.0 and earlier

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the csv_log_html function with a specially crafted name to evade access controls.

Mitigation and Prevention

Protect your systems from CVE-2017-12064 with the following mitigation strategies.

Immediate Steps to Take

Update OpenEMR to the latest version to patch the vulnerability.
Monitor system logs for any suspicious activities that may indicate exploitation.

Long-Term Security Practices

Implement strong access controls and authentication mechanisms.
Conduct regular security assessments and audits to identify and address vulnerabilities.

Patching and Updates

Regularly apply security patches and updates provided by OpenEMR to ensure the latest security measures are in place.