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macOS post-exploitation for credential harvesting, DTrace monitoring, TCC bypass, and stealth operations via native tools
Windows userland post-exploitation for credential harvesting, monitoring, AMSI/ETW bypass, and stealth operations
Kubernetes post-exploitation for container escape, secret extraction, RBAC abuse, and cluster persistence
Based on SOC occupation classification
| name | cis-ubuntu1204-v110-8-2-6 |
| description | Accept Remote rsyslog Messages Only on Designated Log Hosts |
| category | cis-os-hardening |
| version | 1.1.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu",12.04,"linux","logging","rsyslog","remote-logging","log-host","tcp"] |
| cis_id | 8.2.6 |
| cis_benchmark | CIS Ubuntu 12.04 LTS Server Benchmark v1.1.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
By default, rsyslog does not listen for log messages coming in from remote systems. The ModLoad tells rsyslog to load the imtcp.so module so it can listen over a network via TCP. The InputTCPServerRun option instructs rsyslogd to listen on the specified TCP port.
The guidance in the section ensures that remote log hosts are configured to only accept rsyslog data from hosts within the specified domain and that those systems that are not designed to be log hosts do not accept any remote rsyslog messages. This provides protection from spoofed log data and ensures that system administrators are reviewing reasonably complete syslog data in a central location.
grep '$ModLoad imtcp.so' /etc/rsyslog.conf
grep '$InputTCPServerRun' /etc/rsyslog.conf
$ModLoad imtcp.so
$InputTCPServerRun 514
For hosts that are designated as log hosts, edit the /etc/rsyslog.conf file and uncomment the following lines:
$ModLoad imtcp.so
$InputTCPServerRun 514
Execute the following command to restart rsyslogd:
pkill -HUP rsyslogd
By default, rsyslog does not accept remote messages.
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