The default configuration of pluginlicense.ini for the SdcWebSecureBase interface in tgctlcm.dll in Consona Live Assistance, Dynamic Agent, and Subscriber Assistance, when downloaded from a server operated by Telefonica or possibly other companies, contains an incorrect DNS whitelist that includes the DNS hostnames of home computers of many persons, which allows remote attackers to bypass intended restrictions on ActiveX execution by hosting an ActiveX control on an applicable home web server.
CVSS Severity (version 2.0):
Impact Subscore: 10.0
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
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US-CERT Vulnerability Note:
20100507 [Wintercore Research] Consona Products - Multiple vulnerabilities