CVE-2022-24043 : Security Advisory and Response

A vulnerability has been identified in Siemens' products including Desigo DXR2, Desigo PXC3, Desigo PXC4, and Desigo PXC5. The flaw in the login functionality could allow a remote unauthenticated attacker to exploit side-channel information.

Understanding CVE-2022-24043

This CVE highlights a security vulnerability in Siemens' products that could lead to a username enumeration attack.

What is CVE-2022-24043?

The vulnerability affects Siemens products such as Desigo DXR2, Desigo PXC3, Desigo PXC4, and Desigo PXC5. It arises from a failure to normalize response times during login attempts, enabling attackers to discern valid usernames.

The Impact of CVE-2022-24043

A remote unauthenticated attacker could exploit this flaw to perform a username enumeration attack and identify valid usernames, potentially leading to unauthorized access.

Technical Details of CVE-2022-24043

This section elucidates the specifics of the vulnerability.

Vulnerability Description

The flaw originates from the application's failure to normalize response times during login attempts.

Affected Systems and Versions

All versions of Desigo DXR2 < V01.21.142.5-22, Desigo PXC3 < V01.21.142.4-18, Desigo PXC4 < V02.20.142.10-10884, Desigo PXC5 < V02.20.142.10-10884 are impacted.

Exploitation Mechanism

Remote unauthenticated attackers exploit side-channel information to differentiate response times of incorrect and correct login attempts.

Mitigation and Prevention

To address CVE-2022-24043, follow the steps outlined below.

Immediate Steps to Take

Organizations should implement measures to prevent username enumeration attacks and limit access to sensitive information.

Long-Term Security Practices

Regular security assessments, user training on secure practices, and monitoring for unauthorized access are crucial for long-term security.

Patching and Updates

Apply security patches or updates provided by Siemens to remediate the vulnerability and enhance system security.