firecracker-microvm/firecracker

Investigate running the jailer with reduced set of capabilities

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#1,190 opened on Jul 22, 2019

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 (6 comments) (0 reactions) (1 assignee)Rust (2,393 forks)batch import
Good first issuePriority: LowStatus: ParkedType: Enhancement

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Description

We currently start the jailer as the superuser (i.e. using sudo), and rely on the fact the process will deprivilege itself before exec-ing into Firecracker. It would be interesting to know if we can run the jailer using a more restricted set of capabilities instead of full superuser mode.

Contributor guide

Research direction
Experiment with removing capabilities from the jailer process and determine the minimum set required for execution.
Tech stack
rust
Domain
backendsecurity
Issue type
Research
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.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
RustLinux capabilities
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70