A vulnerability in the RMI interface of Cisco Secure ACS could allow an authenticated, remote attacker to perform actions as superadmin.
The vulnerability is due to insufficient authorization enforcement. An attacker could exploit this vulnerability by accessing the ACS via the RMI interface using an authenticated user account. An exploit could allow the attacker to perform superadmin functions via RMI.
Cisco has confirmed the vulnerability in a security advisory and released software updates.
Indicators of Compromise
Cisco Secure Access Control System software versions prior to 5.5 are affected.
The vulnerability is due to improper authentication checks on the remote management interface.
An authenticated, remote attacker could exploit this vulnerability by connecting to the management interface. The attacker could perform certain actions without proper authorization in an elevated security context. The attacker could use that access to completely compromise the device.
To exploit the vulnerability, an attacker must provide valid authentication credentials. The access requirement limits the source of attacks to current users, reducing the potential for exploitation.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to access affected 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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Cisco Multivendor Vulnerability Alerts respond to vulnerabilities identified in third-party vendors' products. These alerts contain information compiled from diverse sources and provide comprehensive technical descriptions, objective analytical assessments, workarounds and practical safeguards, and links to vendor advisories and patches.