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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
Showing SKILL.md
| name | cis-ubuntu2004-v300-2-1-15 |
| description | Ensure snmp services are not in use |
| category | cis-networking |
| version | 3.0.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu","linux","ubuntu-20.04","services"] |
| cis_id | 2.1.15 |
| cis_benchmark | CIS Ubuntu Linux 20.04 LTS Benchmark v3.0.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
Simple Network Management Protocol (SNMP) is a widely used protocol for monitoring the health and welfare of network equipment, computer equipment and devices like UPSs. Net-SNMP is a suite of applications used to implement SNMPv1 (RFC 1157), SNMPv2 (RFCs 1901-1908), and SNMPv3 (RFCs 3411-3418) using both IPv4 and IPv6.
The SNMP server can communicate using SNMPv1, which transmits data in the clear and does not require authentication to execute commands. Unless absolutely necessary, it is recommended that the SNMP service not be used. If SNMP is required, the server should be configured to disallow SNMPv1.
Run the following command to verify snmpd is not installed:
# dpkg-query -W -f='${binary:Package}\t${Status}\t${db:Status-Status}\n' snmpd
If installed, run:
# systemctl is-enabled snmpd.service
# systemctl is-active snmpd.service
Verify the service is not enabled and not active.
snmpd should not be installed, or if installed, the service should be stopped and masked.
Run the following commands to stop, mask, and purge snmpd:
# systemctl stop snmpd.service
# systemctl mask snmpd.service
# apt purge snmpd
snmpd is not installed by default.
| Controls Version | Control | IG 1 | IG 2 | IG 3 |
|---|---|---|---|---|
| v8 | 4.8 Uninstall or Disable Unnecessary Services on Enterprise Assets and Software | x | x | |
| v7 | 9.2 Ensure Only Approved Ports, Protocols and Services Are Running | x | x |
MITRE ATT&CK Mappings: T1203, T1210, T1543, T1543.002 | TA0008 | M1042