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The Juniper SRX Services Gateway VPN must use anti-replay mechanisms for security associations.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-214696JUSX-VN-000031SV-214696r1015749_ruleCCI-001941medium
Description
Anti-replay is an IPsec security mechanism at a packet level which helps to avoid unwanted users from intercepting and modifying an ESP packet. The SRX adds a sequence number to the ESP encapsulation which is verified by the VPN peer so packets are received within a correct sequence. This will cause issues if packets are not received in the order in which they were sent out. By default the SRX has a replay window of 64 or 32, depending on the platform. The SRX drops packets received out of order that are not received within this window. However, this default may be overridden by setting the option no-anti-replay as follows: set security vpn name ike no-anti-replay.
STIGDate
Juniper SRX Services Gateway VPN Security Technical Implementation Guide2024-12-20

Related Frameworks

2 mappings across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-02.2Replay-Resistant Authentication
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (80) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-11Device Lock
1.00
AC-11(1)Pattern-hiding Displays
1.00
AC-17(1)Monitoring and Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00

+70 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.5.4
1.00
CCI2 mappings
CCI-001941
1.00
CCI-001942
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 4 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.AA-04
1.00

Details

Check Text (C-214696r1015749_chk)

Verify anti-replay service is enabled. [edit] show security ipsec security-associations index 16384 detail If anti-replay service is not enabled, this is a finding.

Fix Text (F-15895r297676_fix)

Remove the no-anti-replay Internet Key Exchange (IKE) option from the VPN configuration. By default the SRX has a replay window of 64 or 32, depending on the platform. Example: [edit] delete security vpn name ike no-anti-replay