Advisory Details

November 16th, 2011

InduSoft WebStudio CEServer Operation 0x15 Remote Code Execution Vulnerability

ZDI-11-329
ZDI-CAN-1183

CVE ID CVE-2011-4052
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
AFFECTED VENDORS Indusoft
AFFECTED PRODUCTS WebStudio
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11473. 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 Indusoft WebStudio. Authentication is not required to exploit this vulnerability.

The flaw exists within the CEServer component which is used as a runtime dependency for applications deployed using Indusoft WebStudio. When handling the Remove File operation (0x15) the process blindly copies user supplied data to a fixed-length buffer on the stack. A remote attacker can exploit this vulnerability to execute
arbitrary code under the context of the browser.

ADDITIONAL DETAILS Indusoft has issued an update to correct this vulnerability. More details can be found at:
http://www.indusoft.com/hotfixes/hotfixes.php
DISCLOSURE TIMELINE
  • 2011-04-27 - Vulnerability reported to vendor
  • 2011-11-16 - Coordinated public release of advisory
CREDIT Luigi Auriemma
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