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For accounts using password authentication, the Cisco ISE must implement replay-resistant authentication mechanisms for network access to privileged accounts.


Finding ID Version Rule ID IA Controls Severity
V-242642 CSCO-NM-000370 SV-242642r864203_rule Medium
A replay attack may enable an unauthorized user to gain access to the application. Authentication sessions between the authenticator and the application validating the user credentials must not be vulnerable to a replay attack. An authentication process resists replay attacks if it is impractical to achieve a successful authentication by recording and replaying a previous authentication message. Techniques used to address this include protocols using nonces (e.g., numbers generated for a specific one-time use) or challenges (e.g., TLS, WS_Security). Additional techniques include time-synchronous or challenge-response one-time authenticators.
Cisco ISE NDM Security Technical Implementation Guide 2022-09-20


Check Text ( C-45917r864201_chk )
Navigate to Administration >> System >> Settings >> FIPS Mode.

Verify FIPS Mode is enabled.

If FIPS Mode is enabled, this is not a finding.

If FIPS mode is not configured, but password authentication is configured to use FIPS 140-2/3 validated replay-resistant authentication mechanism for network access to privileged accounts , this can be lowered to a CAT 3 finding.
Fix Text (F-45874r864202_fix)
Enable FIPS Mode in Cisco ISE to ensure FIPS 140-2/3 algorithms are used in all security functions requiring cryptographic functions.

1. Choose Administration >> System >> Settings >> FIPS Mode.
2. Choose the "Enabled" option from the FIPS Mode drop-down list.
3. Click "Save" and restart the node.

NOTE: Configuring FIPS mode is the required DoD configuration. However, this requirement can be lowered to a CAT 3 if the alternative manual configuration is used to configure individual protocols.