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107 lines
3.6 KiB
Markdown
107 lines
3.6 KiB
Markdown
# CIS Debian 7 Hardening
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Modular Debian 7 security hardening scripts based on [cisecurity.org](cisecurity.org)
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recommendations. We use it at [OVH](https://ovh.com) to harden our PCI-DSS infrastructure.
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```console
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$ bin/hardening.sh --audit
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TODO: some eye catchy output
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```
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## Quickstart
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```console
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$ git clone https://github.com/ovh/debian-cis.git && debian-cis
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$ some-example-command
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```
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## Usage
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### Configuration
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Hardening scripts are in ``bin/hardening``. Each script has a corresponding
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configuration file in ``etc/conf.d/[script_name].cfg``.
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Each hardening script can be individually enabled from its configuration file.
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For example, this is the default configuration file for ``disable_system_accounts``:
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```
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# Configuration for script of same name
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status=disabled
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# Put here your exceptions concerning admin accounts shells separated by spaces
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EXCEPTIONS=""
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```
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``status`` parameter may take 3 values:
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- ``disabled`` (do nothing): The script will not run.
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- ``audit`` (RO): The script will check if any change *should* be applied.
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- ``enabled`` (RW): The script will check if any change should be done and automatically apply what it can.
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Global configuration is in ``etc/hardening.cfg``. This file controls the log level
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as well as the backup directory. Whenever a script is instructed to edit a file, it
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will create a timestamped backup in this directory.
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### Run aka "Harden your distro"
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To run the checks and apply the fixes, run ``bin/hardening.sh``.
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This command has 2 main operation modes:
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- ``--audit``: Audit your system with all enabled and audit mode scripts
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- ``--apply``: Audit your system with all enabled and audit mode scripts and apply changes for enabled scripts
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Additionally, ``--audit-all`` can be used to force running all auditing scripts,
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including disabled ones. this will *not* change the system.
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``--audit-all-enable-passed`` can be used as a quick way to kickstart your
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configuration. It will run all scripts in audit mode. If a script passes,
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it will automatically be enabled for future runs. Do NOT use this option
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if you have already started to customize your configuration.
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## Hacking
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**Getting the source**
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```console
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git clone https://github.com/ovh/debian-cis.git
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```
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**Building a debian Package** (the hacky way)
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```console
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debuild -us -uc
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```
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**Adding a custom hardening script**
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TODO
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## Disclaimer
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This project is a set of tools. They are meant to help the system administrator
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built a secure environment. While we use it at OVH to harden our PCI-DSS compliant
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infrastructure, we can not guarantee that it will work for you. It will not
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magically secure any random host.
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Additionally, quoting the License:
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> THIS SOFTWARE IS PROVIDED BY OVH SAS AND CONTRIBUTORS ``AS IS'' AND ANY
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> EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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> WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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> DISCLAIMED. IN NO EVENT SHALL OVH SAS AND CONTRIBUTORS BE LIABLE FOR ANY
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> DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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> (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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> LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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> ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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> (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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> SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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## Reference
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- **Center for Internet Securiy**: https://www.cisecurity.org/
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- **CIS recommendations**: https://benchmarks.cisecurity.org/downloads/show-single/index.cfm?file=debian7.100
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## License
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3-Clause BSD
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