TELUS Security Labs VR - Novell ZENworks Handheld Management ZfHIPCND.exe Buffer Overflow

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Novell ZENworks Handheld Management ZfHIPCND.exe Buffer Overflow

TSL ID: FSC20110125-06

1. Affected Software

    Novell ZENworks Handheld Management 7.0

Reference: http://www.novell.com/products/zenworks/handhelds

2. Vulnerability Summary

A buffer overflow vulnerability exists in Novell ZENworks Handheld Management 
that could be exploited by remote unauthenticated attackers to execute 
arbitrary code with SYSTEM privileges on a vulnerable server.

3. Vulnerability Analysis

The vulnerability is due to a boundary error in the IP Conduit Service, 
ZfHIPCND.exe. If a crafted packet is sent to the service on port 2400/TCP, it 
allocates a fixed size heap buffer and copies the client device information 
into it without validating the string size. This could be exploited by 
attackers to overflow the buffer and possibly execute arbitrary code with the 
privileges of the ZfHIPCND.exe service, by default SYSTEM.

4. Vulnerability Detection

TELUS Security Labs has confirmed the vulnerability in:

    ZENworks Handheld Management 7.0 (ZfHIPCND.exe version 7.0.2.1029 Build 
10/29/10)

5. Workaround

Do not allow untrusted hosts to access the vulnerable service.

6. Vendor Response

Patches have been made available by the vendor to eliminate this vulnerability:

http://www.novell.com/support/viewContent.do?externalId=7007663
http://download.novell.com/Download?buildid=x_x4cdA5yT8~

7. Disclosure Timeline

  2010-12-21 Reported to the vendor
  2010-12-21 Vendor response
  2011-01-25 Vendor released patches and advisory
  2011-01-26 Published TSL advisory

8. Credits

Junaid Bohio of Vulnerability Research Team, TELUS Security Labs

9. References

  CVE: Not available 

  Vendor: http://www.novell.com/support/viewContent.do?externalId=7007663

  http://telussecuritylabs.com/threats/show/FSC20110125-06

10. About TELUS Security Labs

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