The Target of Evaluation (TOE) is the Cisco Catalyst 6K Series Switches. The TOE is comprised of both software and hardware. The hardware is comprised of the following: 6503-E, 6504-E, 6506-E, 6509-E, 6509-V-E and 6513-E with Supervisor Engine 2T (Excluding Sup720), C6880, 6807-X in stand-alone and Cisco Catalyst Instant Access modes. The software is comprised of the Universal Cisco Internet Operating System (IOS) software image Release 15.2(1)SY1a.
\r\nThe Cisco Catalyst 6K Series Switches that comprise the TOE are a switching and routing platform used to construct IP networks by interconnecting multiple smaller networks or network segments. As a Layer2 switch, it performs analysis of incoming frames, makes forwarding decisions based on information contained in the frames, and forwards the frames toward the destination. As a Layer3 switch/router, it supports routing of traffic based on tables identifying available routes, conditions, distance, and costs to determine the best route for a given packet. Routing protocols used by the TOE include BGPv4, EIGRP, EIGRPv6 for IPv6, RIPv2, and OSPFv2. BGPv4, EIGRP, and EIGRPv6 supports routing updates with IPv6 or IPv4, while RIPv2 and OSPFv2 routing protocol support routing updates for IPv4 only.
\r\nThe Cisco Catalyst 6K Series Switches that comprise the TOE have common hardware characteristics. These characteristics affect only non-TSF relevant functions of the switches (such as throughput and amount of storage) and therefore support security equivalency of the switches in terms of hardware.
","evaluation_configuration":"\r\n\r\nThe evaluated configuration consists of the Catalyst 2960CX and 3560CX Series Compact Switches, including the following models: 6503-E, 6504-E, 6506-E, 6509-E, 6509-V-E and 6513-E with Supervisor Engine 2T (Excluding Sup720), C6880, 6807-X in stand-alone and Cisco Catalyst Instant Access modes. The models are running the IOS software Release IOS 15.2(1)SY1a.
","security_evaluation_summary":"\r\n\r\nThe evaluation was carried out in accordance with the Common Criteria Evaluation and Validation Scheme (CCEVS) process and scheme. The criteria against which the Cisco Catalyst 6K Series Switches TOE was judged are described in the Common Criteria for Information Technology Security Evaluation, Version 3.1 rev 4. The evaluation methodology used by the evaluation team to conduct the evaluation is the Common Methodology for Information Technology Security Evaluation, Version 3.1 rev 4. Gossamer Security Solutions determined that the evaluation assurance level (EAL) for the product is EAL 1. The product, when delivered and configured as identified in the Cisco Catalyst 6K Series Switches Common Criteria Operational User Guidance and Preparative Procedures, Version 0.3, December 18, 2015 document, satisfies all of the security functional requirements stated in the Cisco Catalyst 6K Series Switches Security Target, Version 1.0, December 18, 2015. The project underwent CCEVS Validator review. The evaluation was completed in December 2015. Results of the evaluation can be found in the Common Criteria Evaluation and Validation Scheme Validation Report (report number CCEVS-VR-VID10668-2015) prepared by CCEVS.
","environmental_strengths":"The logical boundaries of the Cisco Catalyst 6K Series Switches TOE are realized in the security functions that it implements. Each of these security functions is summarized below.
Security Audit - The Cisco Catalyst 6K provides extensive auditing capabilities. The TOE generates a comprehensive set of audit logs that identify specific TOE operations. For each event, the TOE records the date and time of each event, the type of event, the subject identity, and the outcome of the event. The TOE can be configured to transmit its audit messages to an external syslog server. Communication with the syslog server is protected using IPsec and the TOE can determine when communication with the syslog server fails. If that should occur, the TOE can be configured to block new permit actions. The logs can be viewed on the TOE using the appropriate IOS commands. The records include the date/time the event occurred, the event/type of event, the user associated with the event, and additional information of the event and its success and/or failure. The TOE does not have an interface to modify audit records, though there is an interface available for the authorized administrator to clear audit data stored locally on the TOE.
Cryptographic Support - The TOE provides cryptography in support of other Cisco Cat 6K security functionality. This cryptography has been validated for conformance to the requirements of CAVP algorithm testing as required.
User Data Protection - The TOE ensures that all information flows from the TOE do not contain residual information from previous traffic. New packets that do not contain sufficient information to fill the minimum size of the data portion of the packet use zeroes for padding the remainder of the packet so that residual data from previous traffic is never transmitted from the TOE.
Identification and Authentication - The TOE performs two types of authentication: device-level authentication of the remote device (VPN peers) and user authentication for the Authorized Administrator of the TOE. Device-level authentication allows the TOE to establish a secure channel with a trusted peer. The secure channel is established only after each device authenticates the other. Device-level authentication is performed via IKE/IPsec mutual authentication. The IKE phase authentication for the IPsec communication channel between the TOE and authentication server and between the TOE and syslog server is considered part of the Identification and Authentication security functionality of the TOE.
The TOE provides authentication services for administrative users to connect to the TOEs secure CLI administrator interface. The TOE requires Authorized Administrators to authenticate prior to being granted access to any of the management functionality. The TOE can be configured to require a minimum password length of 15 characters as well as mandatory password complexity rules. The TOE provides administrator authentication against a local user database. Password-based authentication can be performed on the serial console or SSH interfaces. The SSHv2 interface also supports authentication using SSH keys. The TOE supports use of a RADIUS AAA server (part of the IT Environment) for authentication of administrative users attempting to connect to the TOE’s CLI.
Security Management - The TOE provides secure administrative services for management of general TOE configuration and the security functionality provided by the TOE. All TOE administration occurs either through a secure SSHv2 session or via a local console connection. The TOE supports two separate administrator roles: non-privileged administrator and privileged administrator. Only the privileged administrator can perform the above security relevant management functions.
TSF Protection - The TOE protects against interference and tampering by untrusted subjects by implementing identification, authentication, and access controls to limit configuration to Authorized Administrators. The TOE prevents reading of cryptographic keys and passwords. Additionally Cisco IOS is not a general-purpose operating system and access to Cisco IOS memory space is restricted to only Cisco IOS functions.
The TOE internally maintains the date and time. This date and time is used as the timestamp that is applied to audit records generated by the TOE. Administrators can update the TOE’s clock manually, or can configure the TOE to use NTP to synchronize the TOE’s clock with an external time source. Finally, the TOE performs testing to verify correct operation of the router itself and that of the cryptographic module.
The TOE is able to verify any software updates prior to the software updates being installed on the TOE to avoid the installation of malicious software.
TOE Access - The TOE can terminate inactive sessions after an Authorized Administrator configurable time-period. Once a session has been terminated the TOE requires the user to re-authenticate to establish a new session. The TOE can also display an Authorized Administrator specified banner on the CLI management interface prior to allowing any administrative access to the TOE.
Trusted Path/Channels - The TOE allows trusted paths to be established to itself from remote administrators over SSHv2, and initiates outbound IPsec tunnels to transmit audit messages to remote syslog servers. In addition, IPsec is used to secure the session between the TOE and the remote authentication servers. The TOE can also establish trusted paths of peer-to-peer IPsec sessions. The peer-to-peer IPsec sessions can be used for securing the communications between the TOE and authentication server/syslog server.