Advisory Details

December 22nd, 2011

HP Managed Printing Administration MPAUploader.dll Remote Code Execution Vulnerability

ZDI-11-353
ZDI-CAN-1065

CVE ID CVE-2011-4167
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
AFFECTED VENDORS Hewlett-Packard
AFFECTED PRODUCTS Managed Printing Administration
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11697. 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 Managed Printing Administration. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the MPAUploader.dll file. An extended length string can be passed into scripts within the management website on port 80 (the 'uploadfile' multipart form data 'filename' parameter in Default.asp) and ultimately to MPAUploader.dll. As a static stack allocation is used to store the buffer and the string length is not handled properly, a remote attacker may overwrite the stack and ultimately execute remote code.

VENDOR RESPONSE Hewlett-Packard has issued an update to correct this vulnerability. More details can be found at:
https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c03128469
DISCLOSURE TIMELINE
  • 2011-04-01 - Vulnerability reported to vendor
  • 2011-12-22 - Coordinated public release of advisory
CREDIT Andrea Micalizzi aka rgod
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