HP Easy Printer Care XMLSimpleAccessor Class ActiveX Control Remote Code Execution Vulnerability

January 12th, 2012
ZDI-12-014 ZDI-CAN-1117

CVE ID

CVE-2011-4787

CVSS Score

9.0 AV:N/AC:L/Au:N/C:P/I:P/A:C

Affected Vendors

Hewlett-Packard

Affected Products

Easy Printer Care

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of HP Easy Printer Care. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the XMLSimpleAccessor ActiveX control (CLSID: {466576F3-19B6-4FF1-BD48-3E0E1BFB96E9}). By passing an overlong string to the LoadXML() method it is possible to trigger a heap corruption vulnerability. A remote attacker could exploit this vulnerability to execute arbitrary code on the affected machine under the context of the user running the Internet Explorer process.

Additional Details

Hewlett-Packard has issued an update to correct this vulnerability. More details can be found at:
http://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c02949847

Disclosure Timeline

  • 2011-04-04 - Vulnerability reported to vendor
  • 2012-01-12 - Coordinated public release of advisory

Credit

Andrea Micalizzi aka rgod

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