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Compliant Product - Cisco Cloud Services Router 1000V (CSR1000V), Aggregation Services Router 1000 Series (ASR1K), Integrated Services Router 1100 Series (ISR1100), and Integrated Services Router 4000 Series (ISR4K) running on IOS-XE 16.9

Certificate Date:  2019.07.16

Validation Report Number:  CCEVS-VR-VID10952-2019

Product Type:    Virtual Private Network
   Network Device

Conformance Claim:  Protection Profile Compliant

PP Identifier:    collaborative Protection Profile for Network Devices Version 2.0 + Errata 20180314
  Extended Package for VPN Gateways Version 2.1

CC Testing Lab:  Acumen Security

Maintenance Release:
CC Certificate [PDF] Security Target [PDF] * Validation Report [PDF]

Assurance Activity [PDF]

Administrative Guide [PDF]

Administrative Guide [PDF]

Administrative Guide [PDF]

Administrative Guide [PDF]


* This is the Security Target (ST) associated with the latest Maintenance Release.  To view previous STs for this TOE, click here.

Product Description

The TOE consists of the Cisco IOS-XE software image Release 16.9 on any of the four platforms (CSR1000V, ASR1K, ISR1100, ISR4200) as described in the sections below and configured in accordance with the TOE guidance documentation.


Evaluated Configuration

The following figure provides a visual depiction of the TOE deployment.

 

The previous figure includes the following:

·         Example TOE

·         The following are considered to be in the IT Environment:

o   VPN Peers

o   Management Workstation

o   RADIUS AAA (Authentication) Server

o   Audit (Syslog) Server

o   Local Console

o   Certification Authority (CA)

Cisco Cloud Services Router 1000V (CSR1000V)

The CSR1000V TOE in the evaluated configuration contains the following:  

  •    TOE Hardware: Cisco UCS Server (C220 M5, C220 M4, C240 M5, C240 M4, C480 M5)
  •    TOE Software:

o   VMware ESXi 6 Hypervisor

o   A single Guest Virtual Machine supporting:

-  Single hard disk

-  8 GB virtual disk

-  2 or more virtual network interface cards

-  The following virtual CPU configurations are supported:

*     1 virtual CPU, requiring 4 GB minimum of RAM

*     2 virtual CPUs, requiring 4 GB minimum of RAM

*     4 virtual CPUs, requiring 4 GB minimum of RAM

*     8 virtual CPUs, requiring 4 GB minimum of RAM

The TOE has two or more network interfaces and is connected to at least one internal and one external network.  The Cisco IOS-XE configuration determines how packets are handled to and from the TOE’s network interfaces.  The router configuration will determine how traffic flows received on an interface will be handled. Typically, packet flows are passed through the internetworking device and forwarded to their configured destination.

Cisco Aggregation Services Router 1000 Series (ASR1K)

The ASR1K TOE consists of the ASR1002X and ASR1006 as specified in Table 5 of the ST and includes the Cisco IOS-XE software.  The TOE has two or more network interfaces and is connected to at least one internal and one external network.  The Cisco IOS-XE configuration determines how packets are handled to and from the TOE’s network interfaces.  The router configuration will determine how traffic flows received on an interface will be handled. Typically, packet flows are passed through the internetworking device and forwarded to their configured destination.

Cisco Integrated Services Router 1100 Series (ISR1100)

The ISR1100 TOE consists of one or more physical devices as specified in Table 5 of the ST and includes the Cisco IOS-XE software.  The TOE has two or more network interfaces and is connected to at least one internal and one external network.  The Cisco IOS-XE configuration determines how packets are handled to and from the TOE’s network interfaces.  The router configuration will determine how traffic flows received on an interface will be handled. Typically, packet flows are passed through the internetworking device and forwarded to their configured destination.

Cisco Integrated Services Router 4200 (ISR4K)

The ISR4K TOE consists of the ISR4221 as specified in Table 5 of the ST and includes the Cisco IOS-XE software.  The TOE has two or more network interfaces and is connected to at least one internal and one external network.  The Cisco IOS-XE configuration determines how packets are handled to and from the TOE’s network interfaces.  The router configuration will determine how traffic flows received on an interface will be handled. Typically, packet flows are passed through the internetworking device and forwarded to their configured destination.

 

 


Security Evaluation Summary

The evaluation was carried out in accordance with the Common Criteria Evaluation and Validation Scheme (CCEVS) process and scheme. The criteria against which the Cisco Aggregation Services Router 1000 Series (ASR1K), Integrated Services Router 1000 Series (ASR1K), Integrated Services Router 4200 Series (ISR4K) were evaluated 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.  The product, when delivered configured as identified in the Cisco Cloud Services Router 1000V (CSR1000V) CC Configuration Guide v1.0, Cisco Integrated Services Routers 4000 Series (ISR4K) CC Configuration Guide v1.0, Cisco Integrated Services Routers 1100 Series (ISR1100) CC Configuration Guide v1.0, Cisco Aggregation Services Router 1000 Series (ASR1K) v1.0, satisfies all of the security functional requirements stated in the Cisco Cloud Services Router 1000V (CSR1000V), Aggregation Services Router 1000 Series (ASR1K), Integrated Services Router 1100 Series (ISR1100) and Integrated Services Router 4200 Series (ISR4K) Security Target v1.0. The project underwent CCEVS Validator review.  The evaluation was completed in July 2019.  Results of the evaluation can be found in the Common Criteria Evaluation and Validation Scheme Validation Report prepared by CCEVS.


Environmental Strengths

Security Audit

The TOE provides extensive auditing capabilities. The TOE can audit events related to cryptographic functionality, identification and authentication, and administrative actions. The TOE generates an audit record for each auditable event.  Each security relevant audit event has the date, timestamp, event description, and subject identity.  The administrator configures auditable events, performs back-up operations and manages audit data storage.  The TOE provides the administrator with a circular audit trail or a configurable audit trail threshold to track the storage capacity of the audit trail.  Audit logs are backed up over an encrypted channel to an external audit server.

Cryptographic Support

The TOE provides cryptography in support of other TOE security functionality. All the algorithms claimed have CAVP certificates (Operational Environment – Intel Xeon (EC3500, 5200), Intel Xeon on ESXi 6 (Scalable, E5), ARMv8, and Intel Atom C2000 processors).  The TOE leverages the IOS Common Cryptographic Module (IC2M) Rel5 (see Table 1 for certificate references).

 


Table
1  FIPS References

Algorithm

Description

Supported Mode

Module

CAVP Cert. #

SFR

AES

Used for symmetric encryption/decryption

CBC (128, 192 and 256)
GCM (128 and 256)

IC2M

5474
5258
4583
C 462

FCS_COP.1/DataEncryption

SHS

(SHA-1,

SHA-256,

SHA-384 and

SHA-512)

Cryptographic hashing services

Byte Oriented

IC2M

4392
4231
3760
C 462

FCS_COP.1/Hash

HMAC

(HMAC-SHA-1,

HMAC-SHA-256,

HMAC-SHA-512)

Keyed hashing services and software integrity test

Byte Oriented

IC2M

3629
3480
3034
C 462

FCS_COP.1/KeyedHash

DRBG

Deterministic random bit generation services in accordance with ISO/IEC 18031:2011

CTR_DRBG (AES 256)

IC2M

2153
2011
1529
C 462

FCS_RBG_EXT.1

RSA

Signature Verification and key transport

PKCS#1 v.1.5, 3072 bit key,

FIPS 186-4 Key Gen

IC2M

2940
2811
2500
C 462

FCS_CKM.1
FCS_COP.1/SigGen

ECDSA

Cryptographic Signature services

FIPS 186-4, Digital Signature Standard (DSS)

IC2M

1465
1370
1241
C 462

 

FCS_CKM.1
FCS_COP.1/SigGen

CVL-KAS-ECC

Key Agreement

NIST Special Publication 800-56A

IC2M

1926
1729
1257
C 462

FCS_CKM.2

The TOE provides cryptography in support of VPN connections and remote administrative management via SSHv2 and IPsec to secure the transmission of audit records to the remote syslog server. In addition, IPsec is used to secure the session between the TOE and the authentication servers.

The cryptographic services provided by the TOE are described in Table 2 below.

Table 2  TOE Provided Cryptography

Cryptographic Method

Use within the TOE

Internet Key Exchange

Used to establish initial IPsec session.

Secure Shell Establishment

Used to establish initial SSH session.

RSA Signature Services

Used in IPsec session establishment.

Used in SSH session establishment.

X.509 certificate signing

SP 800-90 RBG

Used in IPsec session establishment.

Used in SSH session establishment.

SHS

Used to provide IPsec traffic integrity verification

Used to provide SSH traffic integrity verification

Used for keyed-hash message authentication

AES

Used to encrypt IPsec session traffic.

Used to encrypt SSH session traffic.

RSA

Used in IKE protocols peer authentication

Used to provide cryptographic signature services

ECDSA

Used to provide cryptographic signature services
Used in Cryptographic Key Generation

FFC DH

Used as the Key exchange method for SSH and IPsec

 

ECC DH

Used as the Key exchange method for IPsec

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 TOE supports use of IKEv1 (ISAKMP) and IKEv2 pre-shared keys for authentication of IPsec tunnels. 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 TOE’s 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. 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 the use of a RADIUS AAA server (part of the IT Environment) for authentication of administrative users attempting to connect to the TOE’s CLI.

The TOE provides an automatic lockout when a user attempts to authenticate and enters invalid information.  After a defined number of authentication attempts fail exceeding the configured allowable attempts, the user is locked out until an authorized administrator can enable the user account. 

The TOE uses X.509v3 certificates as defined by RFC 5280 to support authentication for IPsec connections. 

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 provides the ability to securely manage:

  • Administration of the TOE locally and remotely;
  • All TOE administrative users;
  • All identification and authentication;
  • All audit functionality of the TOE;
  • All TOE cryptographic functionality;
  • The timestamps maintained by the TOE;
  • Update to the TOE and verification of the updates;
  • Configuration of IPsec functionality.

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. Management of the TSF data is restricted to Security Administrators. The ability to enable, disable, determine and modify the behavior of all of the security functions of the TOE is restricted to authorized administrators.

Administrators can create configurable login banners to be displayed at time of login, and can also define an inactivity timeout for each admin interface to terminate sessions after a set period of inactivity.

Packet Filtering

The TOE provides packet filtering and secure IPsec tunneling.  The tunnels can be established between two trusted VPN peers and the TOE.  More accurately, these tunnels are sets of security associations (SAs).  The SAs define the protocols and algorithms to be applied to sensitive packets and specify the keying material to be used.  SAs are unidirectional and are established per the ESP security protocol.  An authorized administrator can define the traffic that needs to be protected via IPsec by configuring access lists (permit, deny, log) and applying these access lists to interfaces using crypto map sets.

Protection of the TSF

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-XE is not a general-purpose operating system and access to Cisco IOS-XE memory space is restricted to only Cisco IOS-XE 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.  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 unauthorized software.

Whenever a failure occurs within the TOE that results in the TOE ceasing operation, the TOE securely disables its interfaces to prevent the unintentional flow of any information to or from the TOE and reloads.

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.  Sessions can also be terminated if an Authorized Administrator enters the “exit” command. 

The TOE can also display a Security 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 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, as well as to protect communications with a CA or remote administrative console. 


Vendor Information


Cisco Systems, Inc.
Alicia Squires
919-392-4335
certteam@cisco.com

http://www.cisco.com
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