Advisory Details

May 10th, 2011

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

ZDI-11-165
ZDI-CAN-1015

CVE ID CVE-2011-1853
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 10906. 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 opcode word of a packet the process uses this value as a lookup into a function pointer table. The process then calls into the calculated address. By supplying a large or invalid value a remote attacker can exploit this vulnerability to execute arbitrary code under the context of the SYSTEM user.

VENDOR RESPONSE 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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