Project Description
Dawnscanner was a ruby code security static analyzer I created in 2013 and led until a couple of years ago. Unfortunately in my last two jobs, my focus was less on ruby code, so the project lost some traction.
Now it's time to revive the project, add some security checks and create an RPM package so it can be easily installed by our users.
Goal for this Hackweek
- Solve issue 246: DONE
- Solve issue 245: DONE
- Solve issue 244: DONE
- Marge branch kbrevampin_yaml in main and release version 2.0.0 with new KB 50% DONE: I decided not to release version 2.0.0 due some basic KB updating features
- Move the KB in a separated repository: DONE
- Working on a python script to parse NVD CVE information for ruby and rubygems to populate KB: DONE: 375 security checks added so far
Resources
Dawnscanner source code on GitHub Dawnscanner knowledge base repository is on GitHub
Looking for hackers with the skills:
This project is part of:
Hack Week 20
Activity
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RMT.rs: High-Performance Registration Path for RMT using Rust by gbasso
Description
The SUSE Repository Mirroring Tool (RMT) is a critical component for managing software updates and subscriptions, especially for our Public Cloud Team (PCT). In a cloud environment, hundreds or even thousands of new SUSE instances (VPS/EC2) can be provisioned simultaneously. Each new instance attempts to register against an RMT server, creating a "thundering herd" scenario.
We have observed that the current RMT server, written in Ruby, faces performance issues under this high-concurrency registration load. This can lead to request overhead, slow registration times, and outright registration failures, delaying the readiness of new cloud instances.
This Hackweek project aims to explore a solution by re-implementing the performance-critical registration path in Rust. The goal is to leverage Rust's high performance, memory safety, and first-class concurrency handling to create an alternative registration endpoint that is fast, reliable, and can gracefully manage massive, simultaneous request spikes.
The new Rust module will be integrated into the existing RMT Ruby application, allowing us to directly compare the performance of both implementations.
Goals
The primary objective is to build and benchmark a high-performance Rust-based alternative for the RMT server registration endpoint.
Key goals for the week:
- Analyze & Identify: Dive into the
SUSE/rmtRuby codebase to identify and map out the exact critical path for server registration (e.g., controllers, services, database interactions). - Develop in Rust: Implement a functionally equivalent version of this registration logic in Rust.
- Integrate: Explore and implement a method for Ruby/Rust integration to "hot-wire" the new Rust module into the RMT application. This may involve using FFI, or libraries like
rb-sysormagnus. - Benchmark: Create a benchmarking script (e.g., using
k6,ab, or a custom tool) that simulates the high-concurrency registration load from thousands of clients. - Compare & Present: Conduct a comparative performance analysis (requests per second, latency, success/error rates, CPU/memory usage) between the original Ruby path and the new Rust path. The deliverable will be this data and a summary of the findings.
Resources
- RMT Source Code (Ruby):
https://github.com/SUSE/rmt
- RMT Documentation:
https://documentation.suse.com/sles/15-SP7/html/SLES-all/book-rmt.html
- Tooling & Stacks:
- RMT/Ruby development environment (for running the base RMT)
- Rust development environment (
rustup,cargo)
- Potential Integration Libraries:
- rb-sys:
https://github.com/oxidize-rb/rb-sys - Magnus:
https://github.com/matsadler/magnus
- rb-sys:
- Benchmarking Tools:
k6(https://k6.io/)ab(ApacheBench)
Recipes catalog and calculator in Rails 8 by gfilippetti
My wife needs a website to catalog and sell the products of her upcoming bakery, and I need to learn and practice modern Rails. So I'm using this Hack Week to build a modern store using the latest Ruby on Rails best practices, ideally up to the deployment.
TO DO
- Index page
- Product page
- Admin area -- Supplies calculator based on orders -- Orders notification
- Authentication
- Payment
- Deployment
Day 1
As my Rails knowledge was pretty outdated and I had 0 experience with Turbo (wich I want to use in the app), I started following a turbo-rails course. I completed 5 of 11 chapters.
Day 2
Continued the course until chapter 8 and added live updates & an empty state to the app. I should finish the course on day 3 and start my own project with the knowledge from it.
Hackweek 25
For this Hackweek I'll continue this project, focusing on a Catalog/Calculator for my wife's recipes so she can use for her Café.
Day 1
Help Create A Chat Control Resistant Turnkey Chatmail/Deltachat Relay Stack - Rootless Podman Compose, OpenSUSE BCI, Hardened, & SELinux by 3nd5h1771fy
Description
The Mission: Decentralized & Sovereign Messaging
FYI: If you have never heard of "Chatmail", you can visit their site here, but simply put it can be thought of as the underlying protocol/platform decentralized messengers like DeltaChat use for their communications. Do not confuse it with the honeypot looking non-opensource paid for prodect with better seo that directs you to chatmailsecure(dot)com
In an era of increasing centralized surveillance by unaccountable bad actors (aka BigTech), "Chat Control," and the erosion of digital privacy, the need for sovereign communication infrastructure is critical. Chatmail is a pioneering initiative that bridges the gap between classic email and modern instant messaging, offering metadata-minimized, end-to-end encrypted (E2EE) communication that is interoperable and open.
However, unless you are a seasoned sysadmin, the current recommended deployment method of a Chatmail relay is rigid, fragile, difficult to properly secure, and effectively takes over the entire host the "relay" is deployed on.
Why This Matters
A simple, host agnostic, reproducible deployment lowers the entry cost for anyone wanting to run a privacy‑preserving, decentralized messaging relay. In an era of perpetually resurrected chat‑control legislation threats, EU digital‑sovereignty drives, and many dangers of using big‑tech messaging platforms (Apple iMessage, WhatsApp, FB Messenger, Instagram, SMS, Google Messages, etc...) for any type of communication, providing an easy‑to‑use alternative empowers:
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- Surveillance mitigation - End‑to‑end OpenPGP encryption ensures relay operators never see plaintext.
- Digital sovereignty - Communities can host their own infrastructure under local jurisdiction, aligning with national data‑policy goals.
By turning the Chatmail relay into a plug‑and‑play container stack, we enable broader adoption, foster a resilient messaging fabric, and give developers, activists, and hobbyists a concrete tool to defend privacy online.
Goals
As I indicated earlier, this project aims to drastically simplify the deployment of Chatmail relay. By converting this architecture into a portable, containerized stack using Podman and OpenSUSE base container images, we can allow anyone to deploy their own censorship-resistant, privacy-preserving communications node in minutes.
Our goal for Hack Week: package every component into containers built on openSUSE/MicroOS base images, initially orchestrated with a single container-compose.yml (podman-compose compatible). The stack will:
- Run on any host that supports Podman (including optimizations and enhancements for SELinux‑enabled systems).
- Allow network decoupling by refactoring configurations to move from file-system constrained Unix sockets to internal TCP networking, allowing containers achieve stricter isolation.
- Utilize Enhanced Security with SELinux by using purpose built utilities such as udica we can quickly generate custom SELinux policies for the container stack, ensuring strict confinement superior to standard/typical Docker deployments.
- Allow the use of bind or remote mounted volumes for shared data (
/var/vmail, DKIM keys, TLS certs, etc.). - Replace the local DNS server requirement with a remote DNS‑provider API for DKIM/TXT record publishing.
By delivering a turnkey, host agnostic, reproducible deployment, we lower the barrier for individuals and small communities to launch their own chatmail relays, fostering a decentralized, censorship‑resistant messaging ecosystem that can serve DeltaChat users and/or future services adopting this protocol
Resources
- The links included above
- https://chatmail.at/doc/relay/
- https://delta.chat/en/help
- Project repo -> https://codeberg.org/EndShittification/containerized-chatmail-relay
Looking at Rust if it could be an interesting programming language by jsmeix
Get some basic understanding of Rust security related features from a general point of view.
This Hack Week project is not to learn Rust to become a Rust programmer. This might happen later but it is not the goal of this Hack Week project.
The goal of this Hack Week project is to evaluate if Rust could be an interesting programming language.
An interesting programming language must make it easier to write code that is correct and stays correct when over time others maintain and enhance it than the opposite.
vex8s-controller: a kubernetes controller to automatically generate VEX documents of your running workloads by agreggi

Description
vex8s-controller is an add-on for SBOMscanner project.
Its purpose is to automatically generate VEX documents based on the workloads running in a kubernetes cluster. It integrates directly with SBOMscanner by monitoring VulnerabilityReports created for container images and producing corresponding VEX documents that reflect each workload’s SecurityContext.

Here's the workflow explained:
- sbomscanner scans for images in registry
- generates a
VulnerabilityReportwith the image CVEs - vex8s-controller triggers when a workload is scheduled on the cluster and generates a VEX document based on the workload
SecurityContextconfiguration - the VEX document is provided by vex8s-controller using a VEX Hub repository
- sbomscanner configure the VEXHub CRD to point to the internal vex8s-controller VEX Hub repository
Goals
The objective is to build a kubernetes controller that uses the vex8s mitigation rules engine to generate VEX documents and serve them through an internal VEX Hub repository within the cluster.
SBOMscanner can then be configured to consume VEX data directly from this in-cluster repository managed by vex8s-controller.
Resources
OSHW USB token for Passkeys (FIDO2, U2F, WebAuthn) and PGP by duwe
Description
The idea to carry your precious key material along in a specially secured hardware item is almost as old as public keys themselves, starting with the OpenPGP card. Nowadays, an USB plug or NFC are the hardware interfaces of choice, and password-less log-ins are fortunately becoming more popular and standardised.
Meanwhile there are a few products available in that field, for example
yubikey - the "market leader", who continues to sell off buggy, allegedly unfixable firmware ROMs from old stock. Needless to say, it's all but open source, so assume backdoors.
nitrokey - the "start" variant is open source, but the hardware was found to leak its flash ROM content via the SWD debugging interface (even when the flash is read protected !) Compute power is barely enough for Curve25519, Flash memory leaves room for only 3 keys.
solokey(2) - quite neat hardware, with a secure enclave called "TrustZone-M". Unfortunately, the OSS firmware development is stuck in a rusty dead end and cannot use it. Besides, NXP's support for open source toolchains for its devboards is extremely limited.
I plan to base this project on the not-so-tiny USB stack, which is extremely easy to retarget, and to rewrite / refactor the crypto protocols to use the keys only via handles, so the actual key material can be stored securely. Best OSS support seems to be for STM32-based products.
Goals
Create a proof-of-concept item that can provide a second factor for logins and/or decrypt a PGP mail with your private key without disclosing the key itself. Implement or at least show a migration path to store the private key in a location with elevated hardware security.
Resources
STM32 Nucleo, blackmagic probe, tropicsquare tropic01, arm-none cross toolchain
Exploring Rust's potential: from basics to security by sferracci
Description
This project aims to conduct a focused investigation and practical application of the Rust programming language, with a specific emphasis on its security model. A key component will be identifying and understanding the most common vulnerabilities that can be found in Rust code.
Goals
Achieve a beginner/intermediate level of proficiency in writing Rust code. This will be measured by trying to solve LeetCode problems focusing on common data structures and algorithms. Study Rust vulnerabilities and learning best practices to avoid them.
Resources
Rust book: https://doc.rust-lang.org/book/