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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
Basado en la clasificación ocupacional SOC
Mostrando SKILL.md
| name | cis-ubuntu1804-v220-3-2-3 |
| description | Ensure rds kernel module is not available |
| category | cis-networking |
| version | 2.2.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu","linux","ubuntu-18.04","networking","kernel-module"] |
| cis_id | 3.2.3 |
| cis_benchmark | CIS Ubuntu Linux 18.04 LTS Benchmark v2.2.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
The Reliable Datagram Sockets (RDS) protocol is a transport layer protocol designed to provide low-latency, high-bandwidth communications between cluster nodes. It was developed by the Oracle Corporation.
If the protocol is not being used, it is recommended that the kernel module drivers not be installed to reduce the potential attack surface.
None.
Run the following script to verify the rds module is not available:
#!/usr/bin/bash
{
l_mname="rds"
l_mtype="net"
l_output="" l_output2=""
l_loadable="$(modprobe -n -v "$l_mname")"
[ "$(wc -l <<< "$l_loadable")" -gt "1" ] && l_loadable="$(grep -P -- "(^\h*install|\b$l_mname)\b" <<< "$l_loadable")"
if grep -Pq -- '^\h*install \/bin\/(true|false)' <<< "$l_loadable"; then
l_output="$l_output\n - module: \"$l_mname\" is not loadable: \"$l_loadable\""
else
l_output2="$l_output2\n - module: \"$l_mname\" is loadable: \"$l_loadable\""
fi
if ! lsmod | grep "$l_mname" > /dev/null 2>&1; then
l_output=
l_output2=
modprobe --showconfig | grep -Pq -- ;
l_output=
l_output2=
[ -z ];
-e
-e
[ -n ] && -e
}
- Audit Result:
** PASS **
- module: "rds" is not loadable: "install /bin/true"
- module: "rds" is not loaded
- module: "rds" is deny listed in: "/etc/modprobe.d/<filename>.conf"
Run the following script to disable the rds module:
#!/usr/bin/bash
{
l_mname="rds"
if ! modprobe -n -v "$l_mname" | grep -P -- '^\h*install \/bin\/(true|false)'; then
echo -e " - setting module: \"$l_mname\" to be not loadable"
echo -e "install $l_mname /bin/false" >> /etc/modprobe.d/"$l_mname".conf
fi
if lsmod | grep "$l_mname" > /dev/null 2>&1; then
echo -e " - unloading module \"$l_mname\""
modprobe -r "$l_mname"
fi
if ! modprobe --showconfig | grep -Pq -- "^\h*blacklist\h+$l_mname\b"; then
echo -e " - deny listing \"$l_mname\""
echo -e "blacklist $l_mname" >> /etc/modprobe.d/"$l_mname".conf
fi
}
rds module is available by default.
Version 8
4.8 Uninstall or Disable Unnecessary Services on Enterprise Assets and Software - Uninstall or disable unnecessary services on enterprise assets and software.
Version 7
9.2 Ensure Only Approved Ports, Protocols and Services Are Running - Ensure that only network ports, protocols, and services listening on a system with validated business needs, are running on each system.
Automated