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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-242642r714236_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 2021-09-27


Check Text ( C-45917r714234_chk )
Navigate to Administration >> System >> Settings >> FIPS Mode.

Verify FIPS Mode is enabled.

If the Cisco ISE does not generate unique session identifiers using a FIPS 140-2 approved RNG, this is a finding.
Fix Text (F-45874r714235_fix)
Enable FIPS Mode in Cisco ISE to ensure DRBG is used for all RNG 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.