LunaSec - Open Source Security Software built by Security Engineers. Scan your dependencies for Log4Shell, or add Data Tokenization to prevent data leaks. Try our live Tokenizer demo: https://app.lunasec.dev

Overview

Our Software

We're a team of Security Engineers on a mission to make awesome Open Source Application Security tooling. It all lives in this repo. Here's a breakdown of everything we've built.

  • Log4Shell CLI: A small command line utility to scan for Log4Shell. Also supports patching JAR files against Log4Shell, scanning running processes on your system, and more. Follow our Mitigation Guide for more context.
    • Status: Production ready.
  • LunaTrace: A vulnerability scanner and web dashboard that helps track vulnerabilities in real-time. Combines static analysis, dynamic analysis, and live-patching into an enterpise-grade vulnerability solution.
    • Status: Under active development.
  • LunaDefend: An end-to-end suite of security software built around Tokenization designed to proactively protect your sensitive data from being hacked, as well as providing an easier path towards compliance (SOC2, GDPR, PCI-DSS, etc).
    • Status: Production ready.
  • Our Security Blog: Our ramblings to the internet. This is where we broke the news about the log4j vulnerability and gave it the name Log4Shell. The blog lives in this repo under /docs/blog if you feel like contributing!

LunaDefend

LunaDefend is a suite of security tools designed to protect sensitive data in web applications by adding just a few lines of code.

This section on LunaDefend is moving into its own folder, as soon as we finish reorganizing everything into folders.

What is LunaDefend?

LunaDefend is an end-to-end security system designed to protect your application by transparently encrypting sensitive data, from browser to database. It works seamlessly by storing your sensitive data and then giving you back a Token (a UUID) to retrieve data with later. LunaDefend builds on that concept to offer many security and compliance features.

Features

  • Secure By Default: Prevents data leaks by making your software resistant to many security issues like SQL Injection, XSS, and even RCE.
  • Best-In-Class Compliance Software: Decrease your compliance overhead by 90%+ with centralized access control logic, audit logs, and automatic compliance validation.
  • Simple Onboarding: Get started in minutes by adding * only a few lines of code* anywhere that sensitive data enters or exits your system.
  • Built By Security Experts: Designed to bring leading security practices to your applications without requiring advanced security knowledge.
  • Self-Hosted And Open: You retain control over your data by hosting LunaSec yourself. It's open source software licensed under a permissive Apache2.0 license.
  • Zero Trust Architecture: All records are encrypted with a unique key that even LunaSec can't access. Decryption only happens when you need it to.
  • Scales Automatically: Supports even the largest loads by leveraging cloud-scale database services like AWS S3 and DynamoDB.
  • Enterprise Grade: We offer warranties, managed deployments, and custom support via our Premium Support packages.

You can read more here about what features LunaSec provides.

Live Demo

Try the live demo. It's a simple web app that you can play with in your browser. Sign up for a new account and then submit some fake data in the secure inputs. Right-click and inspect secure elements on the page and watch network traffic to see LunaDefend working behind-the-scenes to protect private data.

Alternatively, you may also launch it locally with one command if you have Node and Docker installed:

npx @lunasec/cli start --env demo

That will pull all the Docker containers and start the LunaDefend demo app on your computer. There are a lot of containers to run, so it may take a few minutes to finish starting up.

For a deeper dive into the Demo App, please see this page for a walkthrough of everything. All the source code is available here for you to view.

If you run into any issues, please open up a GitHub issue or chat with us on our GitHub Discussions page.

Documentation

For more information about LunaSec including tutorials, examples, and technical information, please review our documentation. For technical questions or help, please reach out via our GitHub Discussions board or open a new GitHub issue if you have a bug or feature to request.

Please visit our website for marketing or sales information, or to get in contact.

System Architecture

LunaSec works across the components of your web stack to provide end-to-end data security. We've documented the components of the stack here and in the diagram below.

LunaSec Architecture Diagram

Who is LunaDefend for?

LunaDefend is designed to be used by anyone that needs to collect and store sensitive text or files in a production web application. Despite being built by Security Engineers, LunaDefend does not require security expertise to get started. It's designed to be used by ordinary Software Engineers and Developers.

Reasons to use LunaSec:

  • Security & Data Privacy Compliance: GDPR defines sensitive data include Name, Email, Phone Number, IP Address, Credit Cards, and more. If you are subject to data privacy regulations and store any of that data, then LunaDefend will help you achieve compliance more easily.
  • Data Leak Protection: If you store data that needs to remain securely stored and private, then LunaSec will greatly increase your defenses against unauthorized data leaks.
  • Data Inventory: The centralized nature of LunaDefend makes it easy to track and monitor what data you're storing, who and when it's used, and help you enforce access controls around that data.

The LunaSec stack spans from the front-end to the back-end of your application and works alongside your existing code to keep your data encrypted and secure. To get started, please check out the steps below ("Trying LunaDefend in 1 minute").

How does LunaDefend work?

LunaDefend is similar to a safety deposit box that holds your sensitive data. Each piece of data gets a unique box, a unique key to unlock it, and a unique number to identify each box by. These boxes are then securely stored inside a bank vault that only a banker with special permissions has access to. Accessing the box requires proof of ownership and the key to unlock the box.

The boxes that the data is stored in are unable to be opened without the key. That means that even if the bank is evil, they can't open the box. Even if the box is stolen by a thief, the thief can't open the box without the keys. Only you are able to open the box.

Even if a thief steals the keys, they still have to get access the box either through the banker or by breaking into the bank. One is useless without the other.

That's the core value that LunaSec provides for you. LunaSec runs the bank, hires the bankers, and keeps your boxes secure. You just have to provide the data and keep track of the keys to access it.

We've designed LunaDefend to mitigate many common security vulnerabilities that developers face. Each component of the LunaDefend stack is designed to provide protection against specific attack scenarios. Please read more about the security of LunaDefend here.

Custom Support from the LunaSec Team

We offer paid support, onboarding, and additional enterprise features for LunaSec to help you reach your security or compliance milestones faster. Our team of security engineers is very flexible and happy to work with you.

If you're interested, please send us a message.

LunaSec Premium Support Link

Deploying LunaSec

LunaDefend is self hosted. In order to use LunaDefend in your production environment, you will need to host a copy yourself. We built a deployment CLI tool to make this easy. Currently, LunaSec only deploys to AWS. LunaSec will work with an app that is hosted on other platforms, you just need to have an AWS account for LunaSec to deploy to.

To get started deploying LunaDefend, please see our docs here.

Need Help?

If you find yourself stuck, you're missing a feature, or you just want to clear up some confusion, then please head over to our GitHub Discussions board to talk with our team.

We're a small team and our resources are limited for how much assistance we've able to provide. If your needs are urgent, or you would like us to review your code/implementation, then please consider inquiring about our custom support packages.

Contributing

We welcome community contributions, and we've documented the requirements for contributions here.

See Also

For more information about LunaSec including tutorials, examples, and technical information, please visit our documentation. For marketing information, sales, or to get in touch, visit our website: https://www.lunasec.io/.

The rest of this ReadMe explains how to work on LunaSec itself. If you simply want to use LunaSec, please see the documentation.

What's in this Repo?

This repo contains all public LunaSec code: the LunaSec SDKs, backend services, demo applications, documentation, and supporting scripts.

MonoRepo Folder Structure

We have split code first by language, and then by purpose.

Our backend services and CLI tools are all written in Golang and live in /go.

Our web components and NPM modules are all written in TypeScript and live in /js/sdks/packages.

Our Demo Apps are also written in typescript and live in /js/demo-apps/packages.

Docs live in docs, and the OpenAPI Spec for our internal REST API lives in api-spec.

Demo Apps

Path: /js/demo-apps/packages

Demo apps that use our toolkit for testing and demonstration. The react-app and node-app are the one's currently being developed. These are our only SDK supported frameworks currently.

TypeScript/JavaScript SDKs

Path: /js/sdks/packages

Contains front and backend SDKs.

They're all written in Typescript and outputs to a few different formats:

  • ES5 build (polyfills ES2016 modules)
  • ESNext build (uses ES2016 modules)
  • Browser build (concatenated into one file that's loaded into browser global namespace)

Secure Frame Front-End

Path: /js/sdks/packages/secure-frame-iframe

This holds the SDK frontend components which load into the iframe. The React SDK uses this to isolate sensitive data from front-end apps by using the iframe as an isolated "sandbox". We've hardened this iFrame by adding a very strict Content Security Policy (CSP) that limits the impact of any security issues by heavily restricting network access.

Tokenizer, Secure Frame Back-End, and CLI

Path: /go

These are the back-end components of the LunaSec stack. They share a common codebase and are built into separate binaries by the entrypoints defined in the /go/cmd folder, the most important being the tokenizerbackend.

You can build each entrypoint by using the Makefile like: make tokenizerbackend and then invoking the generated binary inside of the build folder like: ./build/tokenizerbackend_dev.

Contributing

Please read our contributor instructions before forking and submitting a pull request. It's short and it's very helpful if you're going to be working on LunaSec.

How to launch LunaSec for development

To launch and use LunaSec to help you develop your application, see the documentation. To work on LunaSec itself, follow these steps:

Install all dependencies by running lerna bootstrap and be patient.

Configure the LunaSec CLI tool to be used locally by running yarn run lunasec:setup. The lunasec command will not be accessible on your path.

Then, install tmuxp and run tmuxp load ./start-with-tmuxp.yaml in the root directory. You can inspect that file to see what commands are all being run if you'd like to start the cluster without tmuxp.

Note: You'll have to provide your password for the ./go/scripts/start-tokenizerbackend-dependencies.sh command to start.

Open your browser and navigate to http://localhost:3000 to see the demo application.

When you want to shut down the cluster, hit ctrl+b and type :kill-session. (It's just tmux)

Using the CLI to generate test data

A CLI has been written in go to enable the creation of test data. Build the cli via:

cd go
make tokenizer tag=cli

and use it by running

./build/tokenizer_cli COMMAND

How to manage and install packages

We use Lerna to manage the monorepo, and we use yarn as the package manager. Because yarn doesn't know about local packages like Lerna, we can't use yarn add to install dependencies. To add a dependency to a package, either edit it manually into the package.json and run lerna bootstrap, or use lerna add <dependencyname> <path/to/package/youre/working/on>.

Our API spec and OpenAPI

Our Tokenizer API is defined by the OpenAPI standard (previously named Swagger) and can be found in the folder /api-spec in the project root. If the spec changes, the generated code that relies on the spec will need to be regenerated. For example, in the tokenizer-sdk package, run yarn openapi:generate to regenerate the API client. A similar pattern can be used (check the package.json) to generate an api client in any language you wish, by simply specifying the OpenAPI generator name when calling the openapi-generator NPM package .

Feedback

Our goal is to create a sustainable business to support LunaSec, while also building an Open Source community. If you have thoughts on how we can improve our approach, we would love to hear from you.

Please send us an email at developer-feedback at lunasec dot io or file an issue on this repository.

Release Process

The release process will be handled automatically by our CI/CD system.

Under the hood, the release process is split up into four parts:

  1. Version bump
  2. Compile artifacts
  3. Publish artifacts
  4. Push version tag to repository

Breaking this process up ensures that every part completes without error before moving onto the next step. This greatly reduces the event that some artifacts get published and others do not, leading to a headache of a time debugging a release.

Deployment of the releases is done by GitHub Actions.

Version

Versioning for releases is done by lerna.

Compile

Since the monorepo has both go and node code, compilation happens in multiple places. For the node sdks, every package has their own compilation package.json script which gets run. The entrypoint which calls into each package’s script is here. For the go code, all compilation code exists within the Makefile under the release target.

Publish

For node artifacts, everything is handled by lerna. For go, publishing is handled by the publish target of the Makefile. Artifacts end up in NPM, DockerHub, and Github.

Push

The version tag that gets pushed contains the version changes for the bumped monorepo version. Here is an example commit.

Comments
  • WRN unable to open archive

    WRN unable to open archive

    Many jar make this error WRN unable to open archive error="zip: not a valid zip file" It's possible to know why ? Manual unzip it and launch the tool on unzipped dir can be a workaround ?

    opened by RinaldoC 15
  • --json option doesn't do anything

    --json option doesn't do anything

    As of version 1.3.0 on Linux (log4shell_1.3.0-log4shell_Linux_x86_64), the --json option doesn't change anything in the output. It's not displayed as json at all.

    Example:

    [root@7810801a658a tmp]# ./log4shell --json scan /usr/share/elasticsearch/lib 1:45PM ??? Identified vulnerable path cve: CVE-2021-44228 fileName: org/apache/logging/log4j/core/lookup/JndiLookup.class hash: 0f038a1e0aa0aff76d66d1440c88a2b35a3d023ad8b2e3bac8e25a3208499f7e path: /usr/share/elasticsearch/lib/log4j-core-2.9.1.jar severity: 10.0 versionInfo: "2.10.0, 2.11.0, 2.11.1, 2.11.2, 2.9.0, 2.9.1"

    opened by yanickgirouard 14
  • filtering comment findings now, still not editing existing comment

    filtering comment findings now, still not editing existing comment

    We are now using Reviews in "comment" mode instead of straight comments. They are updated instead of duplicated.

    shot_031

    @freeqaz I rolled back most of the changes you made when you copy pasted the code, and then for the backend used hasura's return data from the InsertScan mutation instead of the input data because the shape was much more similar to what the frontend was seeing, and we could re quest IgnoredVulnerabilities simultaneously which we needed.

    opened by factoidforrest 12
  • Windows version of tool is outputing to sterr and not possible to change

    Windows version of tool is outputing to sterr and not possible to change

    I'm trying to pack this tool together with a PowerShell script to run on multiple computers. However the output is sent to the sterr output stream and so i cannot capture it properly.

    Right now i have to redirect the error stream to the success stream (using 2>&1) to handle it. But this really should be unnecessary.

    The --json flag does not seem to change anything (or the instruction for use is unclear). Both of these will just output the "pretty print" (which is a pain to parse...) .\log4shell_1.1.2-log4shell_Windows_x86_64.exe --json scan "C:\" .\log4shell_1.1.2-log4shell_Windows_x86_64.exe scan "C:\" --json

    opened by JMyklebust 12
  • Adds information about Thread Context Map Property Substitutions that might still be vulnerable even with formatMsgNoLookups=true

    Adds information about Thread Context Map Property Substitutions that might still be vulnerable even with formatMsgNoLookups=true

    Adds information about Thread Context Map Property Substitutions that might still be vulnerable even with formatMsgNoLookups=true

    Please verify before just merging I could just create a minimal example and minimal checks if 2.14.1 is really still vulnerable when using ctx. Great to hear if someone could confirm this.

    I'm not sure about the other property substitutions and in general how popular these are, at elast for some commercial products ctx seems to be used.

    opened by kmindi 11
  • Ignoring files with error

    Ignoring files with error "not a valid zip file"

    Is it possible to suppress all loglines with loglevel "WRN" and the logmessage "WRN unable to open archive error="zip: not a valid zip file" ?

    opened by TheKrizz 10
  • how to uncompress the file

    how to uncompress the file

    Good day, once I download the file log4shell_1.4.1-log4shell_Linux_x86_64 for linux, how do I uncompress it? it comes with no extension, thank you very much

    opened by javismiles 9
  • Log4Shell scanner memory utilization

    Log4Shell scanner memory utilization

    Log4Shell scanner consumes a lot of memory. I saw it as high as 18Gb of resident use. It appears to depend on a number of .jar's it processes. Does it not release memory after each archive?

    Measured by /usr/bin/time -v ./log4shell s / Maximum resident set size (kbytes): 17572356

    Some systems just don't have that much memory available which leads to OOM.

    linux, v1.4.1-log4shell

    opened by hrez 9
  • Json output on windows - path issues

    Json output on windows - path issues

    On Windows the path contains double \ instead of a single one. c:\folder\lib instead or c:\folder\lib.

     {
                            "path": "c:\\Users\\oli\\Downloads\\test.war::WEB-INF/lib/log4j-core-2.13.3.jar",
                            "file_name": "org/apache/logging/log4j/core/net/JndiManager.class",
                            "hash": "c3e95da6542945c1a096b308bf65bbd7fcb96e3d201e5a2257d85d4dedc6a078",
                            "version": "2.13.0, 2.13.1, 2.13.2, 2.13.3",
                            "cve": "CVE-2021-44228",
                            "severity": "10.0"
    },
    
    
    good first issue 
    opened by OlivierMasit 8
  • surface code locations in the frontend

    surface code locations in the frontend

    screenshot-localhost_4455-2022 12 15-21_41_01

    Code locations are returned to the frontend and displayed in the package card. Code locations are grouped together based off of finding the closest parent directory with a manifest.

    opened by breadchris 6
  • CLI Refactor

    CLI Refactor

    CLI is refactored to have the following commands exposed:

    lunatrace snapshot container yourrepo/yourimage:tag          explicitly use the Docker daemon
    lunatrace snapshot container --archive path/to/yourimage.tar   use a tarball from disk for archives created from "docker save"
    Skopeo or otherwise)
    lunatrace snapshot directory path/to/yourproject                read directly from a path on disk (any directory)
    lunatrace snapshot file path/to/yourproject/file          read directly from a path on disk (any single file)
    lunatrace snapshot repository github.com/repo/asdf.git          use a remote repository has a source
    
    lunatrace scan sbom.json  scan an sbom for vulnerabilities
    
    opened by breadchris 6
  • Add CISA Known Vulnerabilities Ingester

    Add CISA Known Vulnerabilities Ingester

    This adds the ingester that downloads the latest CSV of the CISA Known Vulnerabilities, aka CVEs which are known to be exploited in the wild by attackers.

    Tested this locally and there are only 10 vulnerabilities in our DB which we're missing in our DB, and they all seem to affect iOS devices only :)

    You can test for all vulns not in the DB with this query:

    -- Find all the CVEs that are not in the CISA list.
    SELECT * FROM vulnerability.cisa_known_exploited_vulnerabilities cve
        WHERE NOT EXISTS (SELECT 1 FROM vulnerability.vulnerability v WHERE v.cisa_known_exploited_cve = cve.cve);
    

    Screenshot from my IDE: Screenshot_2023-01-03_17-44-18

    opened by freeqaz 0
  • Instance trace poc

    Instance trace poc

    Instances of a built application can be traced by using the java agent. The POC of this feature will aim to capture malicious input sent to traced calls in the damn vulnerable java app.

    screencast-localhost_4455-2023.01.02-21_59_23.webm

    • [ ] java agent pulls function hooking config from graphql
    • [ ] java agent inserts logs for called function into graphql
    • [ ] tracing UI formats log messages and identifies potentially malicious behavior
    • [ ] dvja is able to be inventoried, function hooks generated, and logs are viewable in UI
    • [ ] java vulnerabilities are selected to showcase feature
    opened by breadchris 2
  • Add EPSS Ingestor command to ingest-worker

    Add EPSS Ingestor command to ingest-worker

    Detailed Summary:

    • This commit adds a new epss command to the ingest-worker.
    • The epss command includes an "ingest" subcommand which allows the user to update EPSS scores.
    • The epss command is implemented using the clifx library and includes a NewCommand function to create the cli.Command struct.
    • The epss command has a dependency on an EPSSIngester interface which is provided through the fx dependency injection library.
    • The epss command logs informative messages when starting and completing the ingestion process.

    (Thank ChatGPT for the git commit message lol)

    The SQL I wrote is the fastest that I could figure out. The first implementation took >10 minutes and this one takes about 30 seconds now.

    It turns out that query for the IDs ahead of time and then running an "UPDATE" for that is the fastest way. (worth noting)

    opened by freeqaz 0
  • Fix java scanning

    Fix java scanning

    Java scanning was broken because of the semver matching not working for java versions. This was switched to fuzzy and grype/syft are updated to not use our fork, but anchore's latest.

    opened by breadchris 1
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