Covert Storage Channel

This vulnerability exploits the normal reuse of system memory or resources to create a hidden communication path. Instead of using a dedicated data channel, an attacker manipulates observable system properties—such as file names, registry values, or even the presence of temporary files—to store and transmit encoded messages. This turns everyday operations into a secret data pipeline that bypasses standard security controls. In practice, covert storage channels are a form of information leakage often linked to steganography or side-channel attacks. For example, a process with high privileges might write a user's password into a log file field meant only for timestamps, and a less-privileged process could then read that file. Developers must be aware that any system state readable by multiple actors can be misused in this way, requiring careful design to isolate sensitive data and audit all shared resource interactions.