Attacks on Android Clipboard

In this paper, we perform a thorough study on the risks imposed by the globally accessible Android Clipboard. Based on the risk assessment, we formulate a series of attacks and categorize them into two groups, i.e., manipulation and stealing. Clipboard data manipulation may lead to common code injection attacks, like JavaScript injection and command injection. Furthermore, it can also cause phishing attacks, including web phishing and app phishing. Data stealing happens when sensitive data copied into the clipboard is accessed by malicious applications. For each category of attack, we analyze a large number of candidate apps and show multiple case studies to demonstrate its feasibility. Also, our app analysis process is formulated to benefit future app development and vulnerability detection. After a comprehensive exposure of the risk, we briefly discuss some potential solutions.