CVE-2018-1000649 : Exploit Details and Defense Strategies

LibreHealthIO's lh-ehr software version REL-2.0.0 has a vulnerability in the letter.php file, allowing authenticated users to write files with malicious content, potentially leading to remote code execution.

Understanding CVE-2018-1000649

This CVE involves an Authenticated Unrestricted File Write vulnerability in the Patient file letter functions of LibreHealthIO's lh-ehr software.

What is CVE-2018-1000649?

The vulnerability in version REL-2.0.0 of LibreHealthIO's lh-ehr software allows authenticated users to write files with malicious content, potentially enabling remote code execution through user-controlled input.

The Impact of CVE-2018-1000649

The vulnerability could be exploited by authenticated users to write files with malicious content, posing a risk of remote code execution.

Technical Details of CVE-2018-1000649

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability exists in the letter.php file of LibreHealthIO's lh-ehr software, specifically in the Patient file letter functions, enabling authenticated users to write files with malicious content.

Affected Systems and Versions

Affected Version: REL-2.0.0
Product: LibreHealthIO's lh-ehr software

Exploitation Mechanism

The vulnerability can be exploited by authenticated users through user-controlled input, allowing them to write files with malicious content.

Mitigation and Prevention

Protect your systems from CVE-2018-1000649 with these mitigation strategies.

Immediate Steps to Take

Update to a patched version of LibreHealthIO's lh-ehr software.
Monitor user input and restrict file writing permissions.

Long-Term Security Practices

Regularly audit and review file writing permissions.
Educate users on secure coding practices and the risks of file writing vulnerabilities.

Patching and Updates

Apply security patches provided by LibreHealthIO promptly.