CVE-2022-26839 : Exploit Details and Defense Strategies

Delta Electronics DIAEnergie (All versions prior to 1.8.02.004) is vulnerable to an incorrect default permission in the DIAEnergie application, which may allow an attacker to plant new files (such as DLLs) or replace existing executable files.

Understanding CVE-2022-26839

This CVE details a vulnerability in Delta Electronics DIAEnergie that exposes systems to unauthorized file access due to incorrect default permissions.

What is CVE-2022-26839?

The vulnerability in Delta Electronics DIAEnergie allows attackers to manipulate files by planting malicious additions or replacing legitimate executables.

The Impact of CVE-2022-26839

With a CVSS base score of 7.8, this high-severity vulnerability can lead to a compromise of system integrity, confidentiality, and availability. Attackers with low privileges can exploit this issue locally.

Technical Details of CVE-2022-26839

The vulnerability arises due to incorrect default permissions in the DIAEnergie application. Here are further technical insights:

Vulnerability Description

The vulnerability allows attackers to implant or replace files in Delta Electronics DIAEnergie, compromising its security.

Affected Systems and Versions

Delta Electronics DIAEnergie versions prior to 1.8.02.004 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability locally as it involves incorrect default permissions within the DIAEnergie application.

Mitigation and Prevention

To address CVE-2022-26839, immediate steps and long-term security practices are crucial.

Immediate Steps to Take

Users should contact Delta customer service or representative for the fixed version 1.8.02.004.
Minimize network exposure and isolate control system networks behind firewalls.
Use application firewalls to detect Path Traversal and SQL Injection attacks.

Long-Term Security Practices

Avoid connecting programming software to unauthorized networks.
Implement secure remote access methods like virtual private networks (VPNs).

Patching and Updates

Delta Electronics plans a public release with fixes and additional features on June 30, 2022.