I - Mission Critical Classified
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000053
Group -
The Juniper SRX Services Gateway VPN must limit the number of concurrent sessions for user accounts to one (1) and administrative accounts to three (3), or set to an organization-defined number.
Network element management includes the ability to control the number of users and user sessions that utilize a network element. Limiting the number of allowed users and sessions per user is helpfu...Rule Medium Severity -
SRG-NET-000517
Group -
The Juniper SRX Services Gateway VPN must renegotiate the IPsec security association after 8 hours or less.
The IPsec SA and its corresponding key will expire either after the number of seconds or amount of traffic volume has exceeded the configured limit. A new SA is negotiated before the lifetime thres...Rule Medium Severity -
SRG-NET-000517
Group -
The Juniper SRX Services Gateway VPN must renegotiate the IKE security association after 24 hours or less.
When a VPN gateway creates an IPsec Security Association (SA), resources must be allocated to maintain the SA. These resources are wasted during periods of IPsec endpoint inactivity, which could re...Rule Medium Severity -
SRG-NET-000061
Group -
The Juniper SRX Services Gateway VPN device also fulfills the role of IDPS in the architecture, the device must inspect the VPN traffic in compliance with DoD IDPS requirements.
Remote access devices, such as those providing remote access to network devices and information systems, which lack automated, capabilities increase risk and makes remote user access management dif...Rule Medium Severity -
SRG-NET-000062
Group -
The Juniper SRX Services Gateway VPN must use AES256 for the IPsec proposal to protect the confidentiality of remote access sessions.
Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. The Advance Encryption Standard (AES) encryption is cri...Rule High Severity -
SRG-NET-000062
Group -
The Juniper SRX Services Gateway VPN must use AES256 encryption for the Internet Key Exchange (IKE) proposal to protect the confidentiality of remote access sessions.
Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. The Advance Encryption Standard (AES) algorithm is crit...Rule High Severity -
SRG-NET-000062
Group -
The Juniper SRX Services Gateway VPN must be configured to use Diffie-Hellman (DH) group 15 or higher.
Use of an approved DH algorithm ensures the Internet Key Exchange (IKE) (phase 1) proposal uses FIPS-validated key management techniques and processes in the production, storage, and control of pri...Rule High Severity -
SRG-NET-000063
Group -
The Juniper SRX Services Gateway VPN must be configured to use IPsec with SHA256 or greater to negotiate hashing to protect the integrity of remote access sessions.
Without strong cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access VPN provides access to DOD nonpublic information systems by a...Rule Medium Severity -
SRG-NET-000019
Group -
The Juniper SRX Services Gateway VPN must ensure inbound and outbound traffic is configured with a security policy in compliance with information flow control policies.
Remote access devices, such as those providing remote access to network devices and information systems, which lack automated, capabilities increase risk and makes remote user access management dif...Rule Medium Severity -
SRG-NET-000512
Group -
The Juniper SRX Services Gateway VPN must use Internet Key Exchange (IKE) for IPsec VPN Security Associations (SAs).
Without IKE, the SPI is manually specified for each security association. IKE peers will negotiate the encryption algorithm and authentication or hashing methods as well as generate the encryption ...Rule High Severity -
SRG-NET-000512
Group -
If IDPS inspection is performed separately from the Juniper SRX Services Gateway VPN device, the VPN must route sessions to an IDPS for inspection.
Remote access devices, such as those providing remote access to network devices and information systems, which lack automated, capabilities increase risk and makes remote user access management dif...Rule Medium Severity -
SRG-NET-000512
Group -
The Juniper SRX Services Gateway VPN must not accept certificates that have been revoked when using PKI for authentication.
Situations may arise in which the certificate issued by a Certificate Authority (CA) may need to be revoked before the lifetime of the certificate expires. For example, the certificate is known to ...Rule High Severity -
SRG-NET-000512
Group -
The Juniper SRX Services Gateway VPN must specify Perfect Forward Secrecy (PFS).
PFS generates each new encryption key independently from the previous key. Without PFS, compromise of one key will compromise all communications. The phase 2 (Quick Mode) Security Association (SA...Rule Medium Severity -
SRG-NET-000512
Group -
The Juniper SRX Services Gateway VPN must use Encapsulating Security Payload (ESP) in tunnel mode.
ESP provides confidentiality, data origin authentication, integrity, and anti-replay services within the IPsec suite of protocols. ESP in tunnel mode ensures a secure path for communications for si...Rule Medium Severity -
SRG-NET-000131
Group -
The Juniper SRX Services Gateway must disable or remove unnecessary network services and functions that are not used as part of its role in the architecture.
Network devices are capable of providing a wide variety of functions (capabilities or processes) and services. Some of these functions and services are installed and enabled by default. The organiz...Rule Medium Severity -
SRG-NET-000132
Group -
The Juniper SRX Services Gateway VPN must use IKEv2 for IPsec VPN security associations.
Use of IKEv2 leverages DoS protections because of improved bandwidth management and leverages more secure encryption algorithms.Rule Medium Severity -
SRG-NET-000132
Group -
The Juniper SRX Services Gateway VPN must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.
In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types); organizations must disable...Rule Medium Severity -
SRG-NET-000138
Group -
The Juniper SRX Services Gateway VPN must uniquely identify and authenticate organizational users (or processes acting on behalf of organizational users).
To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to prevent potential misuse and compromise of the system. Organizational use...Rule Medium Severity -
SRG-NET-000140
Group -
The Juniper SRX Services Gateway VPN must use multifactor authentication (e.g., DoD PKI) for network access to non-privileged accounts.
To assure accountability and prevent unauthenticated access, non-privileged users must utilize multifactor authentication to prevent potential misuse and compromise of the system. Multifactor aut...Rule High Severity -
SRG-NET-000169
Group -
The Juniper SRX Services Gateway VPN must uniquely identify and authenticate non-organizational users (or processes acting on behalf of non-organizational users).
Lack of authentication and identification enables non-organizational users to gain access to the network or possibly a network element that provides opportunity for intruders to compromise resource...Rule Medium Severity -
SRG-NET-000213
Group -
The Juniper SRX Services Gateway VPN must terminate all network connections associated with a communications session at the end of the session.
Idle TCP sessions can be susceptible to unauthorized access and hijacking attacks. IKE Dead Peer Detection (DPD) is a protocol that verifies the availability of IPsec peer devices by sending encryp...Rule Medium Severity -
SRG-NET-000352
Group -
The Juniper SRX Services Gateway VPN Internet Key Exchange (IKE) must be configured to use an approved Commercial Solution for Classified (CSfC) when transporting classified traffic across an unclassified network.
Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. The National Security Agency/Central Security Service's (NSA/CSS) CSfC Program enables co...Rule High Severity -
SRG-NET-000510
Group -
The Juniper SRX Services Gateway VPN IKE must use NIST FIPS-validated cryptography to implement encryption services for unclassified VPN traffic.
Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. The network element must implement cryptographic modules adhering to the higher standards ...Rule Medium Severity -
SRG-NET-000230
Group -
The Juniper SRX Services Gateway VPN must configure Internet Key Exchange (IKE) with SHA1 or greater to protect the authenticity of communications sessions.
Authenticity protection provides protection against man-in-the-middle attacks/session hijacking and the insertion of false information into sessions. This requirement focuses on communications pro...Rule High Severity -
SRG-NET-000355
Group -
The Juniper SRX Services Gateway VPN must only allow the use of DoD PKI established certificate authorities for verification of the establishment of protected sessions.
Untrusted certificate authorities (CA) can issue certificates, but they may be issued by organizations or individuals that seek to compromise DoD systems or by organizations with insufficient secur...Rule Medium Severity
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