Secunia Research: InduSoft ISSymbol ActiveX Control Buffer Overflow Vulnerabilities

====================================================================== 

                     Secunia Research 01/09/2011

         - InduSoft ISSymbol ActiveX Control Buffer Overflows -

====================================================================== 
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

====================================================================== 
1) Affected Software 

* InduSoft ISSymbol ActiveX Control build 301.1104.601.0
* InduSoft Web Studio version 7.0B2 hotfix 7.0.01.04

NOTE: Other versions may also be affected.

====================================================================== 
2) Severity 

Rating: Highly critical
Impact: System access
Where:  Remote

====================================================================== 
3) Vendor's Description of Software 

"InduSoft Web Studio is a powerful collection of automation tools that
provide all the automation building blocks to develop HMIs, SCADA 
systems and embedded instrumentation solutions. Utilize InduSoft 
integrated Web technologies to take advantage of Internet/intranet 
connectivity."

Link:
http://www.indusoft.com/indusoftart.php?catid=1&name=IWS/webstudio

====================================================================== 
4) Description of Vulnerability

Secunia Research has discovered multiple vulnerabilities in InduSoft
ISSymbol ActiveX control, which can be exploited by malicious people 
to compromise a user's system.

1) A boundary error when processing the "Open()" method can be 
exploited to cause a heap-based buffer overflow via an overly long
string passed as a parameter.

2) A boundary error when processing the "Close()" method can be
exploited to cause a heap-based buffer overflow via an overly long
string passed as a parameter.

3) A boundary error when processing the "SetCurrentLanguage()" method
can be exploited to cause a stack-based buffer overflow via an overly
long string passed as a parameter.

Successful exploitation of the vulnerabilities allows execution of
arbitrary code.

====================================================================== 
5) Solution 

Install Service Pack 1.

====================================================================== 
6) Time Table 

09/06/2011 - Vendor notified
15/06/2011 - Vendor response.
30/08/2011 - Vendor releases a hotfix.
01/09/2011 - Public disclosure.

====================================================================== 
7) Credits 

Discovered by Dmitriy Pletnev, Secunia Research.

====================================================================== 
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2011-0342 for the vulnerabilities.

====================================================================== 
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

====================================================================== 
10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2011-61/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================