CVE-2021-23281 Explained : Impact and Mitigation

A critical vulnerability, CVE-2021-23281, affects Eaton Intelligent Power Manager (IPM) software prior to version 1.69, allowing unauthenticated remote code execution. Attackers can exploit this flaw to execute malicious code by tricking the software into connecting to a rogue SNMP server.

Understanding CVE-2021-23281

This section provides detailed insights into the impact, technical details, and mitigation strategies related to the CVE-2021-23281 vulnerability.

What is CVE-2021-23281?

CVE-2021-23281 is a critical vulnerability in Eaton Intelligent Power Manager (IPM) software that enables unauthenticated remote code execution by sending specially crafted packets to manipulate the software into executing attacker-controlled code.

The Impact of CVE-2021-23281

With a CVSS base score of 10, this vulnerability poses a critical risk to affected systems. The attack vector is through the network, requiring no user interaction. It can lead to high impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2021-23281

Let's delve deeper into the technical aspects of the CVE-2021-23281 vulnerability.

Vulnerability Description

The vulnerability lies in the IPM software's failure to sanitize data provided via the coverterCheckList action in the meta_driver_srv.js class, enabling attackers to execute arbitrary code.

Affected Systems and Versions

Eaton Intelligent Power Manager (IPM) versions prior to 1.69 are vulnerable to this exploit.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted packets to coerce the IPM software into connecting to a rogue SNMP server and executing malicious code.

Mitigation and Prevention

Protecting systems against CVE-2021-23281 requires immediate action and long-term security practices.

Immediate Steps to Take

To mitigate the risk, Eaton recommends upgrading the software to the latest version, 1.69. Additionally, blocking ports 4679 & 4680 on the network where IPM is installed can prevent exploitation.

Long-Term Security Practices

Ensuring timely software updates, restricting network access, and implementing security best practices can enhance overall system security.

Patching and Updates

Regularly apply security patches, stay informed about software vulnerabilities, and follow vendor recommendations to safeguard against potential threats.