1. Symantec-Broadcom-Horizontal/
  2. Security Response/
  3. Attack Signatures/
  4. HTTP Sky MegaPack ShComboBox ActiveX BO

HTTP Sky MegaPack ShComboBox ActiveX BO

Severity: High

This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.


This signature detects attempts to exploit a buffer overflow vulnerability in Shell MegaPack ActiveX control.

Additional Information

Shell MegaPack ActiveX is a suite of GUI components that mimic the functionality of Windows Explorer.

The 'ShComboBox' (shcmb80.ocx) ActiveX control supplied with the application is prone to a buffer-overflow vulnerability because it fails to bounds-check user-supplied data before copying it into an insufficiently sized buffer.

This issue occurs when an excessive amount of data is passed to the 'SetPath()' method.

Successfully exploiting this issue allows remote attackers to execute arbitrary code in the context of the application using the ActiveX control (typically Internet Explorer). Failed exploit attempts likely result in denial-of-service conditions.


  • Sky Software Shell MegaPack ActiveX 8.0
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