Check out the new USENIX Web site.

USENIX Home . About USENIX . Events . membership . Publications . Students
14th USENIX Security Symposium — Abstract

Pp. 177–192 of the Proceedings

Non-Control-Data Attacks Are Realistic Threats

Shuo Chen, Center for Reliable and High Performance Computing, Coordinated Science Laboratory, University of Illinois at Urbana-Champaign; Jun Xu, Emre C. Sezer, Department of Computer Science North Carolina State University; Prachi Gauriar, Ravishankar K. Iyer, Center for Reliable and High Performance Computing, Coordinated Science Laboratory, University of Illinois at Urbana-Champaign


Most memory corruption attacks and Internet worms follow a familiar pattern known as the control-data attack. Hence, many defensive techniques are designed to protect program control flow integrity. Although earlier work did suggest the existence of attacks that do not alter control flow, such attacks are generally believed to be rare against real-world software. The key contribution of this paper is to show that non-control-data attacks are realistic. We demonstrate that many real-world applications, including FTP, SSH, Telnet, and HTTP servers, are vulnerable to such attacks. In each case, the generated attack results in a security compromise equivalent to that due to the control-data attack exploiting the same security bug. Non-control-data attacks corrupt a variety of application data including user identity data, configuration data, user input data, and decision-making data. The success of these attacks and the variety of applications and target data suggest that potential attack patterns are diverse. Attackers are currently focused on control-data attacks, but it is clear that when control flow protection techniques shut them down, they have incentives to study and employ non-control-data attacks. This paper emphasizes the importance of future research efforts to address this realistic threat.
  • View the full text of this paper in HTML and PDF.
    Click here if you have forgotten your password Until August 2006, you will need your USENIX membership identification in order to access the full papers. The Proceedings are published as a collective work, © 2005 by the USENIX Association. All Rights Reserved. Rights to individual papers remain with the author or the author's employer. Permission is granted for the noncommercial reproduction of the complete work for educational or research purposes. USENIX acknowledges all trademarks within this paper.

  • If you need the latest Adobe Acrobat Reader, you can download it from Adobe's site.
To become a USENIX Member, please see our Membership Information.

?Need help? Use our Contacts page.

Last changed: 3 Aug. 2005 ch
Technical Program
Security '05 Home