# Cis Ubuntu1204 V110 7 5 2

> Disable SCTP

- Skill: `cyberstrikeus/cis-ubuntu1204-v110-7-5-2` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-ubuntu1204-v110-7-5-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-ubuntu1204-v110-7-5-2/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/cis-ubuntu1204-v110-7-5-2

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# 7.5.2 Disable SCTP (Not Scored)

## Profile Applicability

- Level 1

## Description

The Stream Control Transmission Protocol (SCTP) is a transport layer protocol used to support message oriented communication, with several streams of messages in one connection. It serves a similar function as TCP and UDP, incorporating features of both. It is message-oriented like UDP, and ensures reliable in-sequence transport of messages with congestion control like TCP.

## Rationale

If the protocol is not being used, it is recommended that kernel module not be loaded, disabling the service to reduce the potential attack surface.

## Audit Procedure

### Using Command Line

Perform the following to determine if SCTP is disabled.

```bash
grep "install sctp /bin/true" /etc/modprobe.d/CIS.conf
```

## Expected Result

```
install sctp /bin/true
```

## Remediation

### Using Command Line

```bash
echo "install sctp /bin/true" >> /etc/modprobe.d/CIS.conf
```

## Default Value

SCTP kernel module is available by default.

## References

- CIS Ubuntu 12.04 LTS Server Benchmark v1.1.0

## Profile

Level 1 - Not Scored