TippingPoint Zero Day Initiative
 

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

ZDI-11-165: May 10th, 2011

CVE ID

CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10906. For further product information on the TippingPoint IPS:

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:

Disclosure Timeline

    2010-12-01 - Vulnerability reported to vendor
    2011-05-10 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Luigi Auriemma