DataPatrol Watermark Bypass Vulnerability in Screenshot and Print Job Handling

A vulnerability in DataPatrol Screenshot Watermark, Printing Watermark Agent version 3.5.2.0, allows a physically proximate attacker to bypass watermark protections. This issue arises from the watermarking mechanism, which is intended to be applied through the operating system's printing process, making it invisible during print previews. The vulnerability can be exploited using standard browser developer tools to capture screenshots or print documents without the DataPatrol watermark, thereby undermining the application's data protection measures.

Impact

Exploitation of this vulnerability allows for the unauthorized distribution of sensitive information without the accompanying watermark, which could lead to data leaks and violations of compliance standards that require watermarking as a control measure.

Reproduction

The vulnerability can be reproduced by opening a modern web browser and navigating to the content that requires watermark protection. Once there, access the browser's Developer Tools and open the Command Menu. For the screenshot bypass, select the screenshot option, which will download the image without the watermark. To bypass the print job watermark, run the command to initiate printing through the Developer Tools console, resulting in a printout that excludes the watermark.

Remediation

It is recommended to implement watermarking at the content rendering level rather than just the user interface. Additionally, detect and restrict the use of Developer Tools during protected sessions, disable browser printing or screenshot capabilities in sensitive views, and consider using secure viewers that prevent access to the document object model.