CVE-2019-12585 : What You Need to Know

An Arbitrary Command Execution vulnerability has been discovered in Apcupsd 0.3.91_5, affecting products like pfSense up to version 2.4.4-RELEASE-p3.

Understanding CVE-2019-12585

This CVE involves an Arbitrary Command Execution vulnerability in Apcupsd 0.3.91_5, specifically impacting the apcupsd_status.php component.

What is CVE-2019-12585?

The vulnerability allows attackers to execute arbitrary commands due to improper input validation in Apcupsd.

The Impact of CVE-2019-12585

This vulnerability could be exploited by malicious actors to execute unauthorized commands on systems running affected versions of Apcupsd, potentially leading to further compromise or system manipulation.

Technical Details of CVE-2019-12585

Apcupsd 0.3.91_5, as used in pfSense through version 2.4.4-RELEASE-p3, is susceptible to Arbitrary Command Execution in the apcupsd_status.php component.

Vulnerability Description

The vulnerability arises from inadequate input validation, enabling attackers to inject and execute arbitrary commands.

Affected Systems and Versions

Apcupsd 0.3.91_5
pfSense up to version 2.4.4-RELEASE-p3

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted input to the affected component, allowing them to execute unauthorized commands.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-12585.

Immediate Steps to Take

Update Apcupsd to a patched version that addresses the Arbitrary Command Execution vulnerability.
Monitor system logs for any suspicious activities that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Implement strict input validation mechanisms in all web-facing applications to prevent similar vulnerabilities.
Regularly update and patch software to protect against known vulnerabilities.

Patching and Updates

Apply patches provided by Apcupsd to fix the Arbitrary Command Execution issue.
Stay informed about security updates and advisories related to Apcupsd and pfSense to ensure timely protection.