JUEX-NM-000260 - The Juniper EX switch must be configured to implement replay-resistant authentication mechanisms for network access to privileged accounts.

Information

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.

Solution

Configure the network device to implement replay-resistant authentication mechanisms for network access to privileged accounts.

set system services ssh protocol-version v2

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Juniper_EX_Switches_Y24M07_STIG.zip

Item Details

Category: IDENTIFICATION AND AUTHENTICATION

References: 800-53|IA-2(8), CAT|II, CCI|CCI-001941, Rule-ID|SV-253903r960993_rule, STIG-ID|JUEX-NM-000260, Vuln-ID|V-253903

Plugin: Juniper

Control ID: afcc70b3f4b1cb6ece5a96df2b206078520aae26d55921f71358c120f0b06e45