Showing posts with label docker. Show all posts
Showing posts with label docker. Show all posts

Sunday, May 31, 2020

Docker / Containers- Security Analysis and Vulnerability Assessment Tools

DockerScan: 

            A Docker analysis tools to detect vulnerabilities in Docker images and Docker registries.


Very quick install

> python3.5 -m pip install -U pip
> python3.5 -m pip install dockerscan

Show options:

> dockerscan -h

Docker Demo

Available actions

Currently Docker Scan support these actions:

  • Scan: Scan a network trying to locate Docker Registries.

  • Registry
    • Delete: Delete remote image / tag
    • Info: Show info from remote registry
    • Push: Push an image (like Docker client)
    • Upload: Upload a random file

  • Image
    • Analyze: Looking for sensitive information in a Docker image.
      • Looking for passwords in environment vars.
      • Try to find any URL / IP in the environment vars.
      • Try to deduce the user used internally to run the software. This is not trivial. If the entry point is a .sh file. Read the file and try to find call to sudo-like: “sudo”, “gosu”, “sh -u”… And report the user found.

      • Extract: extract a docker image

      • Info: Get a image meta information

    • Modify:
      • entrypoint: change the entrypoint in a docker
      • trojanize: inject a reverser shell into a docker image
      • user: change running user in a docker image



Monday, February 11, 2019

Gorsair - Docker API Penetration Testing Tool

Gorsair

                is a penetration testing tool for discovering and remotely accessing Docker APIs from vulnerable Docker containers. Once it has access to the docker daemon, you can use Gorsair to directly execute commands on remote containers.

Gorsair hacks its way into remote docker containers that expose their APIs.




Exposing the docker API on the internet is a tremendous risk, as it can let malicious agents get information on all of the other containers, images and system, as well as potentially getting privileged access to the whole system if the image uses the root user.


Install

From a release

Set the:
  • GORSAIR_VERSION to whatever release you are interested in
  • OS to your operating system (linux, windows or darwin)
  • ARCH to your architecture (amd64, arm, or ppc64le)
And then run the following command to install gorsair.
curl https://github.com/Ullaakut/Gorsair/releases/download/$GORSAIR_VERSION/gorsair_$OS_$ARCH --output /usr/local/bin/gorsair

From the sources

  • Make sure that you have a go version that supports modules (versions 1.11 and above)
  • Make sure that your environment contains the GO111MODULE variable set to on
  • Run go build -o /usr/local/bin/gorsair cmd/*.go from the root of this repository

Command line options

  • -t, --targets: Set targets according to the nmap target format. Required. Example: --targets="192.168.1.72,192.168.1.74"
  • -p, --ports: (Default: 2375,2376) Set custom ports.
  • -s, --speed: (Default: 4) Set custom nmap discovery presets to improve speed or accuracy. It's recommended to lower it if you are attempting to scan an unstable and slow network, or to increase it if on a very performant and reliable network. You might also want to keep it low to keep your discovery stealthy. See this for more info on the nmap timing templates.
  • -v, --verbose: Enable more verbose logs.
  • -D, --decoys: List of decoy IP addresses to use (see the decoy section of the nmap documentation)
  • -e, --interface: Network interface to use
  • --proxies: List of HTTP/SOCKS4 proxies to use to deplay connections with (see documentation)
  • -S, --spoof-ip: IP address to use for IP spoofing
  • --spoof-mac: MAC address to use for MAC spoofing
  • -v, --verbose: Enable verbose logging
  • -h, --help: Display the usage information

How can I protect my containers from this attack

  • Avoid putting containers that have access to the docker socket on the internet
  • Avoid using the root account in docker containers
Ref Link: https://github.com/Ullaakut/Gorsair