Episode 444 - Open Source And End Of Life Open Source Security podcast

36:48

I'm joined by Philippe Ombredanne, creator of the Package URL (PURL), to discuss the surprisingly complex and messy problem of simply identifying open source software packages. We dive into how PURLs provide a universal, common-sense standard that is becoming essential for the future of SBOMs and securing the software supply chain. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-06-purl-philippe-ombredanne/…

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Hobbyist Maintainers with Thomas DePierre 49:03

22 days ago49:03

49:03

Thomas DePierre joins Open Source Security to discuss the central idea from his blog post, "You are all on the hobbyist maintainers turf now," exploring the massive disconnect between the corporate world that consumes open source and the hobbyist community that actually produces it. The conversation reveals this isn't a new problem, but a long-standing reality whose consequences for security, stability, and the future of software we are only now beginning to truly confront. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-06-hobbyist-thomas-depierre/…

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STIG automation with Aaron Lippold 33:28

29 days ago33:28

33:28

I chat with Aaron Lippold, creator of MITRE's Security Automation Framework (SAF), to discuss how to escape the pain of manual STIG compliance. We explore the technical details of open-source tools like InSpec, Heimdall, and Vulcan that automate validation, normalize diverse security data, and streamline the entire security authoring process. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-06-stig-automation-aaron-lippold/…

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Ecosyste.ms with Andrew Nesbitt 35:38

5 weeks ago35:38

35:38

I recently chatted with Andrew Nesbitt about his project, Ecosyste.ms. Ecosyste.ms catalogs open source projects by tracking packages, dependencies, repositories, and more. With this dataset Andrew is able to incredible insights into the world of open source. We chat all about how Ecosyste.ms works and how he manages to wrangle all this data. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-06-ecosystems_andrew_nesbitt/…

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Curl vs AI with Daniel Stenberg 34:23

6 weeks ago34:23

34:23

Daniel Stenberg, the maintainer of Curl, discusses the increase in AI security reports that are wasting the time of maintainers. We discuss Curl's new policy of banning the bad actors while establishing some pretty sane AI usage guidelines. We chat about how this low-effort, high-impact abuse pattern is a denial-of-service attack on the curl project (and other open source projects too). The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-05-curl_vs_ai_with_daniel_stenberg/…

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Repository signing with Kairo De Araujo 33:29

7 weeks ago33:29

33:29

I recently had a chat with Kairo about a project he maintains called Repository Service for TUF (RSTUF). We explain why TUF is tough (har har har), what RSTUF can do, and some of the challenges around securing repositories. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-05-rstuf-with-kairo-de-araujo/…

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Securing GitHub Actions with William Woodruff 31:50

8 weeks ago31:50

31:50

William Woodruff discussed his project, Zizmor, a security linter designed to help developers identify and fix vulnerabilities within their GitHub Actions workflows. This tool addresses inherent security risks in GitHub Actions, such as injection vulnerabilities, permission issues, and mutable tags, by providing static analysis and remediation guidance. Fresh off the heels of the tj-actions/changed-files backdoor, this is a great topic with some things everyone can do right away. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-05-securing-github-actions-william-woodruff/…

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Embedded Security with Paul Asadoorian 34:24

9 weeks ago34:24

34:24

Recently, I had the pleasure of chatting with Paul Asadoorian, Principal Security Researcher at Eclypsium and the host of the legendary Paul's Security Weekly podcast. Our conversation dove into the often-murky waters of embedded systems and the Internet of Things (IoT), sparked by a specific vulnerability discussion on Paul's show concerning reference code for the popular ESP32 microcontroller. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-05-embedded-security-with-paul-asadoorian/…

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tj-actions with Endor Lab's Dimitri Stiliadis 32:39

10 weeks ago32:39

32:39

Dimitri Stiliadis, CTO from Endor Labs, discusses the recent tj-actions/changed-files supply chain attack, where a compromised GitHub Action exposed CI/CD secrets. We explore the impressive multi-stage attack vector and the broader often-overlooked vulnerabilities in our CI/CD pipelines, emphasizing the need to treat these build systems with production-level security rigor instead of ignoring them. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-04-tjactions_with_dimitri_stiliadis/…

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Syft, Grype, and Grant with Alan Pope 31:04

11 weeks ago31:04

31:04

I chat with Alan Pope about the open source security tools Syft, Grype, and Grant. These tools help create Software Bills of Materials (SBOMs) and scan for vulnerabilities. Learn why generating and storing SBOMs is crucial for understanding your software supply chain and quickly responding to new threats like Log4Shell. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-04-syft-grype-grant-alan-pope/…

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CVE for EOL with Aaron Frost 30:00

12 weeks ago30:00

30:00

Aaron Frost explores the overly complex world of vulnerability identifiers for end of life software. We discuss how incomplete CVE reporting creates blind spots for users while arming attackers with knowledge. The conversation uncovers the ethical tensions between resource constraints and security transparency, highlighting why the "vulnerable until proven otherwise" approach is the best path forward for end of life software. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-04-cve_eol_aaron_frost/…

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cargo-semver-checks with Predrag Gruevski 33:35

13 weeks ago33:35

33:35

Cargo Semver Checks is a Rust tool by Predrag Gruevski that is tackling the problem of broken dependencies that cost developers time when trying to upgrade dependencies. Predrag's work shows how automated checks can catch breaking changes before they're released, potentially saving projects from unexpected failures and making dependency updates less painful across the entire Rust ecosystem. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-04-cargo-semver-checks-predrag-gruevski/…

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Distributed CI and Git with Lars Wirzenius 27:27

14 weeks ago27:27

27:27

Lars Wirzenius discusses his innovative CI/CD system Ambient, which uses isolated virtual machines without network access to enhance security, and his work on Radicle, a peer-to-peer Git collaboration platform. Together, these projects offer a glimpse into a more distributed future for software development, addressing key challenges in current CI/CD systems like long wait times, security vulnerabilities, and centralized infrastructure limitations. The blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-03-ambient-radicle-lars-wirzenius/…

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FIDO authentication with William Brown 29:26

15 weeks ago29:26

29:26

William Brown tells us all about how confusing and complicated the FIDO authentication universe is. He talks about WebAuthn implementation challenges to flaws in the FIDO metadata service that affect how hardware tokens are authenticated against. The conversation covers the spectrum of hardware security key quality, attestation mechanisms, and the barriers preventing open source developers from improving industry standards despite their expertise. The blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-03-fido_auth_william_brown/…

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CRA with Luis Villa 25:46

16 weeks ago25:46