hadolint/hadolint

Check if an SSH server has been installed or specified as the containers entry point

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#451 opened on Jul 22, 2020

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enhancementhelp wanted

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Description

  • This is a bug report
  • This is a feature request
  • I searched existing issues before opening this one

Expected behavior

Running SSH in a container is a security risk and having hadolint catch occurrences of this in dockerfiles would be a beneficial feature. This could be done by either checking for mentions of ssh or openssh being added as a package or mentions of ssh or openssh being used as container entry points.

Contributor guide

Research direction
Investigate how hadolint currently detects package installations (e.g., apt get, apk) and entry points. Look at existing rules like DL3008 for inspiration. Determine how to check for SSH related packages and if the entry point includes an SSH server.
Tech stack
haskelldocker
Domain
devopssecurity
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
HaskellDockerfile
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50