The Juniper SRX Services Gateway VPN must terminate all network connections associated with a communications session at the end of the session.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-214689 | SRG-NET-000213 | JUSX-VN-000022 | SV-214689r1056184_rule | 2024-12-20 | 3 |
| 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. |
| ℹ️ Check |
|---|
| 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 |
|---|
| 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 |