Advisory Details

August 29th, 2012

InduSoft Thin Client ISSymbol InternationalSeparator Remote Code Execution Vulnerability

ZDI-12-168
ZDI-CAN-1342

CVE ID CVE-2011-0340
CVSS SCORE 7.5, (AV:N/AC:L/Au:N/C:P/I:P/A:P)
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 12446. 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 Thin Client. 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 ISSymbol.ocx ActiveX component. The process performs insufficient bounds checking on user-supplied data passed in as the 'InternationalSeparator' parameter which results in a heap overflow. This vulnerability can be leveraged to execute code under the context of the user running 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
  • 2011-12-19 - Vulnerability reported to vendor
  • 2012-08-29 - Coordinated public release of advisory
CREDIT Alexander Gavrun
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