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 accepting 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

# svcprop system-log | grep log_from_remote If the config/log_from_remote value is not false, this is a finding.

Fix Text

# svccfg -s system-log setprop config/log_from_remote=false # svcadm refresh system-log

Additional Identifiers

Rule ID: SV-220107r603266_rule

Vulnerability ID: V-220107

Group Title: SRG-OS-000480

Expert Comments

CCIs tied to check.

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