From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu Sep 18 2008 - 18:40:05 CDT

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TITLE:
FlexNET Connect Insecure Script Execution Vulnerability

SECUNIA ADVISORY ID:
SA31896

VERIFY ADVISORY:
http://secunia.com/advisories/31896/

CRITICAL:
Less critical

IMPACT:
System access

WHERE:
From remote

SOFTWARE:
Macrovision InstallShield
http://secunia.com/advisories/product/16401/
Acresso FLEXnet Connect
http://secunia.com/advisories/product/19863/
Macrovision FLEXnet Connect 6.x
http://secunia.com/advisories/product/13552/

DESCRIPTION:
Brian Dowling has reported a vulnerability in FlexNET Connect, which
can be exploited by malicious people to compromise a vulnerable
system.

The vulnerability is caused due to the client retrieving and
executing script code ("rules") from update servers in an insecure
manner, which can be exploited to execute arbitrary code when a
client checks for updates. This check can e.g. be triggered via the
FLEXnet Connect ActiveX control when a user visits a specially
crafted web page.

Successful exploitation requires e.g. a MitM (Man-in-the-Middle) or
DNS spoofing attack.

This vulnerability is reported in Acresso FlexNET Connect,
Macrovision FlexNET Connect, and InstallShield Update Service.

SOLUTION:
Disable the update service to prevent receiving update rules.

PROVIDED AND/OR DISCOVERED BY:
Brian Dowling, Simplicity Communications

ORIGINAL ADVISORY:
Simplicity Communications:
http://www.simplicity.net/vuln/CVE-2008-1093.txt

OTHER REFERENCES:
US-CERT VU#837092:
http://www.kb.cert.org/vuls/id/837092

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