CVE-2019-3940 : What You Need to Know

Advantech WebAccess 8.3.4 is vulnerable to unauthenticated file upload attacks through an RPC call, allowing remote attackers to execute arbitrary code.

Understanding CVE-2019-3940

This CVE involves a vulnerability in Advantech WebAccess 8.3.4 that enables unauthenticated file upload attacks.

What is CVE-2019-3940?

The CVE-2019-3940 vulnerability in Advantech WebAccess 8.3.4 allows unauthenticated remote attackers to execute arbitrary code by exploiting an RPC call.

The Impact of CVE-2019-3940

The vulnerability permits attackers to upload files without authentication, potentially leading to the execution of malicious code on the target system.

Technical Details of CVE-2019-3940

Advantech WebAccess 8.3.4 vulnerability technical specifics.

Vulnerability Description

The flaw in Advantech WebAccess 8.3.4 enables unauthenticated file uploads through an RPC call, facilitating remote code execution.

Affected Systems and Versions

Product: WebAccess
Vendor: Advantech
Version: 8.3.4

Exploitation Mechanism

Attackers exploit an RPC call in Advantech WebAccess 8.3.4 to upload files without authentication, allowing them to execute arbitrary code remotely.

Mitigation and Prevention

Protective measures to address CVE-2019-3940.

Immediate Steps to Take

Apply vendor-supplied patches promptly to mitigate the vulnerability.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.
Educate users and administrators about secure practices to prevent unauthorized access.

Patching and Updates

Ensure timely installation of security patches and updates provided by Advantech to address the CVE-2019-3940 vulnerability.