CVE-2022-34758 : Security Advisory and Response

A CWE-20 vulnerability in Easergy P5 devices by Schneider Electric could allow attackers with privileged user credentials to disable the device's watchdog function.

Understanding CVE-2022-34758

This CVE refers to an Improper Input Validation vulnerability that impacts Easergy P5 devices, potentially leading to a disabled watchdog function.

What is CVE-2022-34758?

The vulnerability, classified as CWE-20, exists in the affected product's firmware versions prior to V01.401.102, allowing attackers with privileged credentials to disable the device's watchdog function.

The Impact of CVE-2022-34758

With a CVSS base score of 5.1 (Medium severity), this vulnerability could result in the compromise of the integrity of the affected systems. Although the confidentiality impact is none, the attacker's ability to disable the watchdog function poses a risk to the device.

Technical Details of CVE-2022-34758

This section provides technical insights into the vulnerability, including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from improper input validation, enabling attackers to disrupt the normal watchdog function of the Easergy P5 devices.

Affected Systems and Versions

Easergy P5 devices running firmware versions prior to V01.401.102 are affected by this vulnerability.

Exploitation Mechanism

Attackers with privileged user credentials can exploit this vulnerability to disable the device's watchdog function, compromising its integrity.

Mitigation and Prevention

To address CVE-2022-34758, immediate steps should be taken and long-term security practices must be implemented.

Immediate Steps to Take

Users of Easergy P5 devices should apply security patches provided by Schneider Electric to remediate the vulnerability. Access to privileged credentials should also be strictly controlled.

Long-Term Security Practices

Implementing strong access controls, regular security updates, and continuous monitoring are essential for maintaining the security of the device and preventing future exploits.

Patching and Updates

Regularly check for firmware updates and security advisories from Schneider Electric to ensure that the device is protected against known vulnerabilities.