Secure Endpoint


Missing Digital Signature from Configuration Block

Published: May 11, 2018 | Last Updated: Sep 24, 2020

Absolute Computrace Agent V80.845 and V80.866 does not have a digital signature for the configuration block, which allows attackers to set up communication with a web site other than the intended site by modifying data within a disk's inter-partition space. This allows a privileged local user to execute arbitrary code even after that user loses access and all disk partitions are reformatted.

Security Updates

Product Platform Fix Versions Fix Version Release Date
Rpcnet.exe v857 and earlier Windows OS 944 Feb 1, 2011
Rpcnetp.exe v957 and earlier Windows BIOS 961 Jul 14, 2017


Agent versions referenced above have addressed the security concerns by authenticating the server as part of establishing secure communications. With the above security updates, the vulnerability is limited to an administrator on the device interrupting communications to Absolute systems.

Work Arounds


Read more about NIST CVE-2009-5150


The Absolute Computrace Agent is a piece of software that is packaged with Absolute’s Persistence technology embedded in over 1 Billion devices. The agent provides for visibility and control of the device by creating a digital tether between the device, and the Absolute Monitoring Center.

Log into the Absolute console and go to Assets > Devices. In the report, go to the settings area and edit columns in the report to show the Agent column. This column will report on the version of the agent that is deployed to devices under Absolute management.

Absolute manages the agent upgrade process as part of our service. If your device is regularly calling into the Absolute Monitoring Center then the upgrade to our latest agent will happen automatically. If you are still seeing an outdate agent on a device under management, contact the Absolute support team for assistance.

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