PowerTCP Service ActiveX control buffer overflow

powertcp-service-activex-bo (34494) The risk level is classified as HighHigh Risk


The PowerTCP Service ActiveX control (DartService.dll) is vulnerable to a buffer overflow. By creating a specially-crafted Web page, a remote attacker could overflow a buffer and execute arbitrary code on the system, if the attacker could persuade the victim to visit the Web page and enable the ActiveX control.


Base Score: 8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
Temporal Score: 7.2
  Exploitability: Functional
  Remediation Level: Unavailable
  Report Confidence: Uncorroborated


Gain Access


No remedy available as of September 1, 2014.


  • BugTraq Mailing List, Thu May 24 2007 - 13:55:26 CDT : Dart Communications PowerTCP Service Control (DartService.dll remote buffer overflow.
  • Dart Communications Web site: Zip Compression | Compress |  ActiveX, OCX | WinZip, PKZIP, GZip.
  • BID-24142: Dart Communications PowerTCP Service DartService.DLL ActiveX Control Buffer Overflow Vulnerabilities
  • BID-24163: Dart Zip Compression DartZip.DLL ActiveX Control Buffer Overflow Vulnerability
  • CVE-2007-2856: Buffer overflow in the Dart Communications PowerTCP ZIP Compression ActiveX control in DartZip.dll, when Internet Explorer 6 is used, allows user-assisted remote attackers to execute arbitrary code via a long first argument to the QuickZip function, a related issue to CVE-2007-2855.
  • OSVDB ID: 38110: Dart ZipLite Compression ActiveX (DartZipLite.dll) QuickZip Function Arbitrary Code Execution
  • OSVDB ID: 38111: Dart Communications PowerTCP ZIP Compression ActiveX QuickZip Function Arbitrary Code Execution

Platforms Affected:

  • Dart PowerTCP Service ActiveX control


May 24, 2007

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