Cisco Firewall Services Module contains a vulnerability that could allow an attacker to take complete control of a device. Updates are available.
A vulnerability in the authorization code of the Cisco Firewall Services Module (FWSM) could allow an authenticated but unprivileged, local attacker to delete, modify, or view the configuration of any other context of the affected system.
The vulnerability is due to insufficient authorization safeguards of certain administrative commands in a user context when the affected system is configured for multiple context mode. An attacker could exploit this vulnerability by executing certain commands in any of the user contexts of the affected system.
Cisco has confirmed the vulnerability in a security advisory and released software updates.
Cisco Firewall Services Module Software versions prior to 3.2(27) and 4.1(14) are affected.
Only an attacker who could log in locally to the affected device could exploit the vulnerability, decreasing the potential source of attacks.
A local user could exploit this vulnerability to gain complete control of a targeted device.
The vulnerability is due to improper authorization requirements on administrative commands.
A local attacker could exploit this vulnerability by running the affected administrative commands. Due to improper authorization checks, the attacker could execute the commands without having the proper privileges and affect the device configuration.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to access local systems.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
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 email at email@example.com.
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