JUSX-VN-000025 - The Juniper SRX Services Gateway VPN must configure Internet Key Exchange (IKE) with SHA1 or greater to protect the authenticity of communications sessions.

Information

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 protection for the application session rather than for the network packet and establishes grounds for confidence at both ends of communications sessions in ongoing identities of other parties and in the validity of information transmitted. Depending on the required degree of confidentiality and integrity, web services/SOA will require the use of mutual authentication (two-way/bidirectional).

An IPsec Security Associations (SA) is established using either IKE or manual configuration.

Solution

Include the SHA1 or higher authentication algorithm in the IKE proposal. The following is an example command.

[edit]
set security ike proposal <P1-PROPOSAL-NAME> authentication-algorithm sha-256

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Juniper_SRX_SG_Y24M07_STIG.zip

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-23, CAT|I, CCI|CCI-001184, Rule-ID|SV-214692r383107_rule, STIG-ID|JUSX-VN-000025, STIG-Legacy|SV-81131, STIG-Legacy|V-66641, Vuln-ID|V-214692

Plugin: Juniper

Control ID: 94b9c04c9a0570ddc4d79a6e9330aeb036efa5e918e91724ff2db6d3ad0ab2f3