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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-ubuntu1204-v110-6-7 |
| description | Ensure NFS and RPC are not enabled |
| category | cis-os-hardening |
| version | 1.1.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu",12.04,"linux","nfs","rpc","network-filesystem","attack-surface"] |
| cis_id | 6.7 |
| cis_benchmark | CIS Ubuntu 12.04 LTS Server Benchmark v1.1.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
The Network File System (NFS) is one of the first and most widely distributed file systems in the UNIX environment. It provides the ability for systems to mount file systems of other servers through the network.
If the server does not export NFS shares or act as an NFS client, it is recommended that these services be disabled to reduce remote attack surface.
Ensure no start conditions listed for rpcbind-boot:
initctl show-config rpcbind-boot rpcbind-boot
Run the following to ensure no start links for nfs-kernel-server exist in /etc/rc*.d:
ls /etc/rc*.d/S*nfs-kernel-server
No start conditions should be listed for rpcbind-boot and no results should be returned for nfs-kernel-server start links.
Remove or comment out start lines in /etc/init/rpcbind-boot.conf:
sed -i 's/^start/#start/' /etc/init/rpcbind-boot.conf
Remove any start links for nfs-kernel-server from /etc/rc*.d:
rm /etc/rc*.d/S*nfs-kernel-server
rpcbind is enabled by default on Ubuntu 12.04 LTS Server. nfs-kernel-server is not installed by default.
Level 1 - Not Scored