CVE-2018-7495 : What You Need to Know

A vulnerability has been discovered in various versions of Advantech WebAccess, WebAccess Dashboard, WebAccess Scada Node, and WebAccess/NMS that could potentially allow an attacker to delete files.

Understanding CVE-2018-7495

This CVE involves an external control of file name or path vulnerability in multiple Advantech products.

What is CVE-2018-7495?

The vulnerability found in Advantech WebAccess versions V8.2_20170817 and earlier, WebAccess versions V8.3.0 and earlier, WebAccess Dashboard versions V.2.0.15 and earlier, WebAccess Scada Node versions prior to 8.3.1, and WebAccess/NMS versions 2.0.3 and earlier could be exploited by attackers to delete files due to the external control of file name or path vulnerability.

The Impact of CVE-2018-7495

This vulnerability could lead to unauthorized deletion of files by malicious actors, potentially causing data loss, system instability, and disruption of operations.

Technical Details of CVE-2018-7495

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability allows attackers to delete files due to an external control of file name or path issue.

Affected Systems and Versions

Advantech WebAccess versions V8.2_20170817 and prior
WebAccess versions V8.3.0 and prior
WebAccess Dashboard versions V.2.0.15 and prior
WebAccess Scada Node versions prior to 8.3.1
WebAccess/NMS versions 2.0.3 and prior

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating file names or paths to delete files on affected systems.

Mitigation and Prevention

Protecting systems from CVE-2018-7495 is crucial to maintaining security.

Immediate Steps to Take

Apply security patches provided by Advantech promptly.
Monitor file deletion activities for any suspicious behavior.
Implement access controls to restrict unauthorized file deletions.

Long-Term Security Practices

Regularly update and patch all software and systems to prevent vulnerabilities.
Conduct security audits and assessments to identify and address potential weaknesses.

Patching and Updates

Advantech may release patches to address the vulnerability; ensure timely installation to mitigate the risk of file deletion.