Advisory Details

May 10th, 2011

HP 3COM/H3C Intelligent Management Center tftpserver mode Remote Code Execution Vulnerability

ZDI-11-163
ZDI-CAN-1013

CVE ID CVE-2011-1851
CVSS SCORE 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Hewlett-Packard
AFFECTED PRODUCTS H3C Intelligent Management Center
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10904. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of HP 3com/H3C Intelligent Management Center. Authentication is not required to exploit this vulnerability.

The flaw exists within the tftpserver.exe component which listens by default on UDP port 69. When handling the transfer mode field this value is passed through toupper before being stored in a local buffer for string comparison. The process does not properly verify the destination buffer on the stack is sufficient size to handle the newly created string. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the SYSTEM user.

ADDITIONAL DETAILS Hewlett-Packard has issued an update to correct this vulnerability. More details can be found at:
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02822750
DISCLOSURE TIMELINE
  • 2010-12-01 - Vulnerability reported to vendor
  • 2011-05-10 - Coordinated public release of advisory
CREDIT Luigi Auriemma
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