Title

The syslog daemon must not accept remote messages unless it is a syslog server documented using site-defined procedures. (Cat II impact)

Discussion

Unintentionally running a syslog server that accepts remote messages puts the system at increased risk. Malicious syslog messages sent to the server could exploit vulnerabilities in the server software itself, could introduce misleading information in to the system's logs, or could fill the system's storage leading to a Denial-of-Service.

Check Content

Determine if the syslog daemon accepts remote messages. If it does, this is a finding.

Fix Text

Configure the system syslog daemon to not accept messages from remote hosts.

Additional Identifiers

Rule ID: SV-12522r2_rule

Vulnerability ID: V-12021

Group Title: GEN005480

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.