CVE-2019-18629 : Exploit Details and Defense Strategies

Xerox AltaLink B8045/B8055/B8065/B8075/B8090 and C8030/C8035/C8045/C8055/C8070 multifunction printers are affected by a vulnerability that allows an attacker to execute unauthorized binary files during a manipulated clone installation process.

Understanding CVE-2019-18629

This CVE entry describes a security vulnerability in Xerox AltaLink multifunction printers that could be exploited by attackers to run unauthorized binary files.

What is CVE-2019-18629?

The vulnerability in Xerox AltaLink printers enables attackers to execute unauthorized binary files by manipulating the clone installation process. This requires the attacker to create a clone file and sign it using a compromised private key.

The Impact of CVE-2019-18629

The exploitation of this vulnerability could lead to unauthorized execution of malicious code on the affected printers, potentially compromising the confidentiality, integrity, and availability of the devices and the data they process.

Technical Details of CVE-2019-18629

Xerox AltaLink B8045/B8055/B8065/B8075/B8090 and C8030/C8035/C8045/C8055/C8070 multifunction printers are susceptible to the following:

Vulnerability Description

Prior to software release 101.00x.099.28200, attackers can exploit the vulnerability to run unauthorized binary files during a manipulated clone installation process.

Affected Systems and Versions

Affected Systems: Xerox AltaLink B8045/B8055/B8065/B8075/B8090 and C8030/C8035/C8045/C8055/C8070 multifunction printers
Vulnerable Versions: Software releases before 101.00x.099.28200

Exploitation Mechanism

To exploit this vulnerability, attackers need to:

Generate a clone file
Sign the clone file using a compromised private key

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2019-18629:

Immediate Steps to Take

Update the Xerox AltaLink printer software to version 101.00x.099.28200 or later
Monitor for any unauthorized activities on the printers

Long-Term Security Practices

Regularly update printer firmware and software to patch known vulnerabilities
Implement network segmentation to isolate printers from critical systems

Patching and Updates

Apply security patches and updates provided by Xerox to mitigate the vulnerability and enhance the security of the printers