The Juniper SRX Services Gateway VPN must terminate all network connections associated with a communications session at the end of the session.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-214689 | JUSX-VN-000022 | SV-214689r1056184_rule | Medium |
| Description |
| 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 encrypted IKE Phase 1 notification payloads to peers. Note: For dynamic (remote access) VPN, the TCP keep-alive for remote access is implemented in the Juniper SRX Firewall STIG. |
| STIG | Date |
| Juniper SRX Services Gateway VPN Security Technical Implementation Guide | 2024-12-20 |
Details
| Check Text (C-15890r1056089_chk) |
| Navigate to the IKE configuration. [edit] show security ike gateway <ike-peer-name> If the DPD options are not configured, this is a finding. |
| Fix Text (F-15888r1056090_fix) |
| For site-to-site VPN, configure an Internet Key Exchange (IKE) gateway that includes DPD parameters such as in the following example. set security ike gateway IKE-PEER ike-policy IKE-POLICY set security ike gateway IKE-PEER address <Peer IP Address> set security ike gateway IKE-PEER dead-peer-detection always-send set security ike gateway IKE-PEER dead-peer-detection interval 10 set security ike gateway IKE-PEER dead-peer-detection threshold 2 set security ike gateway IKE-PEER local-identity inet <IPv4 Address in Certificate> set security ike gateway IKE-PEER remote-identity inet <IPv4 Address in Remote Certificate> set security ike gateway IKE-PEER external-interface <interface name> set security ike gateway IKE-PEER version v2-only |