Security Target, Version 3.9 | March 18, 2008 |
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3 TOE Security Environment
This section describes the security aspects of the environment in which the TOE will be used and the manner in which the TOE is expected to be employed. Section 3.1 provides assumptions about the secure usage of the TOE, including physical, personnel, and connectivity aspects. Section 3.2 lists the known and presumed threats countered by either the TOE or by the security environment.
3.1 Assumptions
This section contains assumptions regarding the security environment and the intended usage of the TOE. The following specific conditions are required to ensure the security of the TOE and are assumed to exist in an environment where this TOE is employed.
| It is assumed that administrators will be trained in the secure use of the TOE and will |
| follow the policies and procedures defined in the TOE documentation for secure |
| administration of the TOE. Administrators are assumed to be |
A.TIMESTAMPS | It is assumed that the TOE relies on the operating environment of TOE to provide |
| accurate clock time in order to create an accurate time stamp for audit events. |
| Administrators are responsible for the maintenance of a reliable time source for use with |
| audit operations. |
A.PHYSICAL | It is assumed that the TOE may be susceptible to physical attacks by an attacker. It is |
| assumed that the TOE will be housed within a physically secure environment in order to |
| mitigate this risk. |
A.CERTIFICATE | It is assumed that the environment will provide the necessary infrastructure to ensure that |
| certificates can be validated when digital certificates are used for authentication. This |
| may mean the environment provides a connection to a trusted Certificate Authority, or |
| that the required certificates are otherwise available to the TOE. It is assumed that the |
| appropriate infrastructure is properly maintained in order to ensure the accuracy and |
| security of the certificates (e.g., certificates are revoked in a timely manner). |
A.INSTALL | It is assumed that the TOE is delivered, installed, and setup in accordance with |
| documented delivery and installation/setup procedures. |
A.ACCESS | It is assumed that the TOE has access to all of the Information Technology (IT) System |
| data it needs to perform its functions. |
A.DOMSEP | It is assumed that the IT environment will maintain a security domain for the Nortel VPN |
| software that protects it from interference and tampering by untrusted subjects. |
3.2 Threats to Security
This section identifies the threats to the IT assets (private networks) against which protection is required by the TOE or by the security environment. The threat agents are divided into two categories:
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