CVE-2023-37857 : Vulnerability Insights and Analysis

This article provides details about CVE-2023-37857, a vulnerability affecting PHOENIX CONTACT's WP 6xxx series web panels prior to version 4.0.10.

Understanding CVE-2023-37857

This section explores the nature and impact of the vulnerability.

What is CVE-2023-37857?

CVE-2023-37857 involves the use of hardcoded cryptographic keys in PHOENIX CONTACT's WP 6xxx series web panels, allowing an authenticated remote attacker with admin privileges to create valid session cookies.

The Impact of CVE-2023-37857

The vulnerability enables attackers to create session cookies, although these cookies do not grant access to valid sessions on the affected device.

Technical Details of CVE-2023-37857

This section delves into the specifics of the CVE.

Vulnerability Description

In versions prior to 4.0.10, an attacker with admin privileges can read hardcoded cryptographic keys, leading to the ability to generate valid session cookies.

Affected Systems and Versions

PHOENIX CONTACT's WP 6xxx series web panels with versions less than 4.0.10 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability remotely, post authentication, to manipulate session cookies without gaining valid access to the device.

Mitigation and Prevention

Learn how to mitigate and prevent the exploitation of CVE-2023-37857.

Immediate Steps to Take

Immediately update affected systems to version 4.0.10 or newer to address the hardcoded cryptographic keys issue.

Long-Term Security Practices

Enforce the principle of least privilege, regularly monitor for unauthorized access, and ensure timely security patches and updates.

Patching and Updates

Stay informed about security updates from PHOENIX CONTACT and promptly apply patches to protect against known vulnerabilities.