Honeywell HMIWeb Browser ActiveX Control RequestDSPLoad Remote Code Execution Vulnerability

December 21st, 2012
ZDI-12-203 ZDI-CAN-1437

CVE ID

CVE-2012-2054

CVSS Score

7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected Vendors

Honeywell

Affected Products

HMIWeb

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Honeywell HMIWeb. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the ActiveX control defined within the HSCDSPRenderDll.dll file. The RequestDSPLoad method does not properly verify the length of a supplied argument before copying it into a fixed-length heap buffer. A remote attacker can abuse this to execute arbitrary code under the context of the user running the browser.

Additional Details


http://www.us-cert.gov/control_systems/pdf/ICSA-12-150-01.pdf


Disclosure Timeline

  • 2011-11-23 - Vulnerability reported to vendor
  • 2012-12-21 - Coordinated public release of advisory

Credit

Anonymous

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