Trend Micro ServerProtect SPNTSVC.EXE Multiple Stack Buffer Overflow Vulnerabilities



Date Discovered

February 20, 2007


Trend Micro ServerProtect is prone to multiple remote stack-based buffer-overflow vulnerabilities because the application fails to properly bounds-check user-supplied input before copying it to an insufficiently sized memory buffer. Exploiting these issues allows attackers to execute arbitrary machine code with SYSTEM-level privileges.

Technologies Affected

  • Trend Micro ServerProtect for EMC 5.58
  • Trend Micro ServerProtect for Network Appliance Filer 5.61
  • Trend Micro ServerProtect for Network Appliance Filer 5.62
  • Trend Micro ServerProtect for Windows 5.58


Block external access at the network boundary, unless external parties require service.
If global access isn't needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of successful exploits.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Implement multiple redundant layers of security.
Various memory-protection schemes (such as non-executable and randomly mapped memory segments) may hinder an attacker's ability to exploit this vulnerability to execute arbitrary code.

Run all software as a nonprivileged user with minimal access rights.
Running software as a user with least privileges possible may help mitigate the impact of a successful exploit attempt.

The vendor has released fixes to address these issues. Please see the references for more information.



Pedram Amini of the TippingPoint Security Research Team is credited with the discovery of these vulnerabilities.

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