Cisco Secure Desktop contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system. Updates are available.
Cisco Secure Desktop contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system.
The vulnerability is due to insufficient input validation of the ActiveX control and Java components that perform the WebLaunch functionality of the affected software. An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to visit a malicious web page. If successful, the attacker could execute arbitrary code on the system with the privileges of the user.
Cisco has confirmed this vulnerability and released software updates.
Cisco Secure Desktop versions prior to 3.6.6020 are vulnerable on Microsoft Windows, Linux, and Apple Mac OS X platforms.
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.
The attack vector for exploitation is through HTTP and HTTPS IP version 4 and IP version 6 packets using TCP ports 80 and 443.
Customers who do not have the affected software on their networks can trigger this vulnerability using ActiveX controls or Java applets that have been signed by Cisco.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
An unauthenticated, remote attacker could exploit this vulnerability to execute arbitrary code on a targeted system with the privileges of the user. If the user holds elevated privileges, the attacker could completely compromise the system.
The vulnerability is due to insufficient input validation of the ActiveX control and Java components that perform the WebLaunch functionality of the affected software.
An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to visit a malicious web page. If successful, the attacker could execute malicious code in the vulnerable ActiveX control or Java applet with the privileges of the user's web browser session.
Administrators are advised to apply the appropriate updates.
Users are advised not to open e-mail messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.
Administrators are advised to monitor affected systems.
Administrators running the affected software on Microsoft Windows platforms may consider blacklisting the vulnerable ActiveX control class identifiers (CLSIDs) by setting a kill bit. Microsoft has released a security advisory for additional details on performing this action at the following link: ActiveX Kill Bits 2736233
The Cisco Applied Intelligence team has created the following companion document to guide administrators in identifying and mitigating attempts to exploit this vulnerability prior to applying updated software: cisco-amb-20120620-ac
Cisco customers with active contracts can obtain updates through the Software Center at the following link: Cisco. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via e-mail at firstname.lastname@example.org.
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