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Assessment Title
Rule Text
The Juniper SRX Services Gateway must authenticate NTP servers before establishing a network connection using bidirectional authentication that is cryptographically based.
Description
Discussion Text
Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Bidirectional authentication provides stronger safeguards to validate the identity of other devices for connections that are of greater risk, such as remote connections.
The Juniper SRX can only be configured to use MD5 authentication keys. This algorithm is not FIPS 140-2 validated; thus, a CAT 1 finding is allocated in CCI-000803. However, MD5 is preferred to no authentication at all.
The trusted-key statement permits authenticating NTP servers. The Juniper SRX supports multiple keys, multiple NTP servers, and different keys for each server; add the "key <key number>" parameter to the server statement to associate a key with a specific server.
The Juniper SRX can only be configured to use MD5 authentication keys. This algorithm is not FIPS 140-2 validated; thus, a CAT 1 finding is allocated in CCI-000803. However, MD5 is preferred to no authentication at all.
The trusted-key statement permits authenticating NTP servers. The Juniper SRX supports multiple keys, multiple NTP servers, and different keys for each server; add the "key <key number>" parameter to the server statement to associate a key with a specific server.
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