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

May 10th, 2011
ZDI-11-164 ZDI-CAN-1014

CVE ID

CVE-2011-1852

CVSS Score

10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected Vendors

Hewlett-Packard

Affected Products

H3C Intelligent Management Center

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 a TFTP packet type 0x03 or 0x05 (DATA or ERROR) the process blindly copies user supplied data into a fixed-length buffer on the stack. 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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