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V-3070

The network element must log all attempts to establish a management connection for administrative access.

Finding ID
NET1640
Rule ID
SV-15456r2_rule
Severity
Cat III
CCE
(None)
Group Title
Management connections must be logged.
CCI
(None)
Target Key
(None)
Documentable
No
Discussion

Audit logs are necessary to provide a trail of evidence in case the network is compromised. Without an audit trail that provides a when, where, who and how set of information, repeat offenders could continue attacks against the network indefinitely. With this information, the network administrator can devise ways to block the attack and possibly identify and prosecute the attacker.

Fix Text

Configure the device to log all access attempts to the device to establish a management connection for administrative access.

Check Content

Review the router configurations and verify that all ssh connection attempts are logged. The configuration should look similar to the following: [edit interfaces] lo0 { unit 0 { family inet { filter { input protect-routing-engine; } address 192.168.1.2/32; } } } [edit firewall] family inet { filter protect-routing-engine { term terminal-access { from { source-address { 192.168.1.10; 192.168.1.11; } protocol tcp; port [ssh]; } then { syslog; accept; } } term default-action { then { syslog; discard; } } } }

Responsibility

Information Assurance Officer