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Metadata, Open Source Supply Chains, and EU’s Cyber Resilience Act
NUUG 2024-11-12
Salve J. Nilsen
🐘 Mastodon — @sjn\@chaos.social
Note:
New laws, new obligations
- Cyber Resilience Act is arriving in the next weeks
- 1st law to affect Open Source projects substantially
Note:
- This talk is more about the future of open source communities, than the present
(I am not a lawyer)
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(I am not a lawyer)
- (Also, I am not an “authority”)
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(I am not a lawyer)
- (Also, I am not an ~”authority”~)
- I’m a volunteer
EU Cyber Resilience Act
- Approved by the EU Parliament Mar 12th 2024
- Adopted by the EU Commission on Oct 10th 2024
- Published in the official EU Journal [soon]
- Takes effect 36 months after publication
> * [Council adoption](https://www.consilium.europa.eu/en/press/press-releases/2024/10/10/cyber-resilience-act-council-adopts-new-law-on-security-requirements-for-digital-products/) announcement – 2024-10-10
Note:
- Into full effect by the end of 2027
- This talk is to…
- help you prepare, and
- for you to help us prepare
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The goal of the CRA?
- Increase the general Cybersecurity across Europe
- To ensure Products with Digital Elements are safe before placement on the market
Note:
- Details in the upcoming slides
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CRA Applies to…
- All Manufacturers
- that wish to place Products with Digital Elements
- on the EU market
- in the course of a commercial activity
> * Background: [Recital 15](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=17)
Note:
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Products with Digital Elements
- Connected devices
- Remote data processing solutions
- Non-tangible digital products
- Related systems and services needed for operation
> * Background: [Recital 9](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=10)
> * Product with Digital Elements: [Article 3 (1), (4), (6), (7)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=136)
> * Placing on the market: [Article 3 (21)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=140)
Note:
- Devices, components
- routers, cameras, fridges, toys, etc.
- Anything which has software may be affected!
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CRA does not apply to…
- Software that is purely part of a service
- Software that is covered by other regulation (NIS2, AI Act, Medical device regulations, etc.)
- Software that is Open Source*
> * [Recital 12](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=13)
> * [Recital 18](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=21)
Six “Roles”
- Manufacturer
- Distributor, Importer and Market Authorities
- Open Source Software Steward
- Open Source Developers
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Six “Roles”
- Manufacturer
- Distributor, Importer and Market Authorities ❌
- Open Source Software Steward ❌
- Open Source Developers
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Six “Roles”
- Manufacturer 🔍
- Distributor, Importer and Market Authorities ❌
- Open Source Software Steward ❌
- Open Source Developers
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Manufacturer
- A natural or legal person who
- develops or manufactures products with digital elements
- or has products with digital elements designed, developed or manufactured,
- and markets them under its name or trademark,
- whether for payment, monetisation or free of charge
> * [Article 3 (12), (13)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=138)
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Obligations of Manufacturers
— Conformance
- Place a CE mark on their products
> * [Article 28](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=218)
Note:
- “I am following EU Law”
- “Presumption of Conformance” when following EU Standards
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— Support period
- Determine the product support period
- Default is 5 years, but should reflect expected use time
- Support period can also set by authorities
- Security fixes must remain available for 10 years after issuing
> * [Article 13 (8)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=165)
> * [Article 13 (9)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=166)
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— Point of Contact
- Set up a single point of contact
> * [Annex II.2](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=303)
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— Unique ID
- Create a unique identification of their product
> * [Annex II (3)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=303)
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— Build & Dependencies
- Be able to identify and document vulnerabilities and components contained in products
- Describe how the product is put together
> * [Annex I, Part II (1)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=297)
> * [Annex VII.2 (a)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=314)
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— Produce SBOMs
- Produce SBOMs upon request by regulators
- At minimum, top level dependencies
> * [Recital 22](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=26)
> * [Annex I, Part II (1)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=300)
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— No Vulnerabilities
- Product has no known vulnerabilities
- Product is secure by default, and secure by design
- 😍 Exercise due diligence when integrating third party components
- 😍 Report vulnerabilities to the Manufacturer or Open Source maintainer
> * [Article 13.1](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=161)
> * [Annex I, Part I (2 (a))](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=297)
> * [Recital 65](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=73)
> * [Article 13.5](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=163)
> * [Article 13.6](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=164)
Note:
- Due diligence – to avoid or fix the components that compromise security
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— Offer timely security updates
- Make security updates available to customers effectively for the duration of the support period
- Ensure vulnerabilities can be addressed through security updates
> * [Article 13.8](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=165)
> * [Annex I part II](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=300)
> * [Annex I, Part I (2 (c))](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=297)
> * [Annex I, Part II (7)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=302)
Note:
- Address vulnerabilities in a timely manner
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— Early warning system
- Take part in the EU early warning notification regime
- Early warning within 24h after exploit discovery
- Vulnerability notification within 72h, incl. corrective measures
- Final report no later than a 14 days after discovery
- Incident reports submitted to a common EU reporting platform
> * [Article 13.6](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=164)
> * [Article 14.1](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=176)
> * [Article 14.2 (a)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=177)
> * [Article 14.2 (b)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=177)
> * [Article 14.2 (c)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=178)
Six “Roles”
- Manufacturer 🔍
- Distributor, Importer and Market Authorities ❌
- Open Source Software Steward ❌
- Open Source Developers
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Six “Roles”
- Manufacturer ✅
- Distributor, Importer and Market Authorities ❌
- Open Source Software Steward ❌
- Open Source Developers 🔍
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Open Source Developers
- CRA doesn’t really talk about Open Source Developers
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Obligations to Open Source Developers
– Status Quo
- CRA does not apply to Developers that…
- contribute code to projects they are not responsible for
- are not monetising their product
- make a product that is ultimately not intended for commercial activities
> * [Recital (18)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=20))
> * [Recital (19)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=22))
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– With an Open Source Steward
- CRA applies voluntarily if the Developer decides…
- their product is ultimately intended for commercial activities
> * [Recital (19)](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=22)
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Six “Roles”
- Manufacturer ✅
- Distributor, Importer and Market Authorities ❌
- Open Source Software Steward ❌
- Open Source Developers 🔍
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Six “Roles”
- Manufacturer ✅
- Distributor, Importer and Market Authorities ❌
- Open Source Software Steward ❌
- Open Source Developers ✅
What Metadata is being asked for?
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Metadata “today”
- What “Best Practices” exist for Metadata? 😅
As much optional as possible;
As little required as necessary.
Note:
- “Optional” isn’t really an option any more
- Some fields are actually required
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Metadata “tomorrow”
- OSS components and ecosystems are universal
- Requirements are coming from “everywhere”
- “Minimum Elements” or “Baseline Attributes”
- “Minimum” – “Recommended” – “Aspirational”
> * (NTIA-SBOM) [NTIA Minimum Elements for a Software Bill of Materials (SBOM)](https://www.ntia.doc.gov/files/ntia/publications/sbom_minimum_elements_report.pdf#page=9), Published 2021-07-12
> * (CISA-2024-10) [CISA Framing Software Component Transparency: Establishing a Common Software Bill of Materials (SBOM)](https://www.cisa.gov/sites/default/files/2024-10/SBOM%20Framing%20Software%20Component%20Transparency%202024.pdf), Third edition, Section 2 and Appendix B; Published 2024-10-15
Note:
- It’s necessary to look at metadata requirements in general
- Not just from the CRA (Europe’s)
- “Required” attributes come in different forms
- Keep in mind what the purpose of the metadata is – not just it’s “requiredness”
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Metadata Headaches
- No common glossary of terms
- Needed – a Metadata Rosetta Stone
- Not following existing “Best Practices”
As much optional as possible;
As little required as necessary.
Note:
- The current landscape is still a mess
- Which means that well-considered constructive implementations can become a good example for others to consider
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Component attributes
| Attribute name | Required | References |
| :---------------------------------- | :------: | ----------------------------------------------------: |
| Primary Component Name | Yes | NTIA-SBOM, CISA-2024-10, CRA-AV, TR-03183 |
| **Version** 👈 | Yes | CISA-2024-10, CRA-AV, TR-03183 |
| Purpose, Intended Use | Yes | CRA-AII(4) |
| **Supplier** Name 👈 | Yes | CRA-AII(1), CRA-AV, NTIA-SBOM, CISA-2024-10, TR-03183 |
| Security contact | Yes | CRA-AII(2) |
| Copyright Notice | Yes | CISA-2024-10 |
| License(s) | Yes | CISA-2024-10, TR-03183, CSCRF |
Note:
- Version:
- Semantic Versions (“SemVer”), Calendar Versions (“CalVer”)
- On CPAN: Decimal Versions (“DeciVer”).
- Reality: Arbitrary Versions formats has to be supported
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Dependency Attributes
| Attribute name | Required | References |
| :---------------------------------- | :------: | ---------------------------------------------------: |
| **Unique Product ID** 👈 | Yes | CRA-AII(3), CRA-AV, NTIA-SBOM, CISA-2024-10 |
| Cryptographic Hash | Yes | CISA-2024-10, TR-03183, CSCRF |
| Primary Component Filename | Yes | TR-03183 |
| Dependencies | Yes | CRA-AII(5), NTIA-SBOM, CISA-2024-10, TR-03183, CSCRF |
| **Relationships** 👈 | Yes | CISA-2024-10 |
Note:
- Unique ID: CPE (Common Platform Enumeration), Package URL, SWID, UUIDs, SWHID (Software Heritage ID), OmniBOR
- Intrinsic vs. Extrinsic
- Global uniqueness required
- This is a mess, and very hard to solve. Best option for OSS today: Package URLs
- Relationships: If a dependency is static, remote, provided, or dynamic
- “Primary”, “Included in”, “Heritage or Pedigree”
- Relationship completeness
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The SBOM Document Itself
| Attribute name | Required | References |
| :---------------------------------- | :------: | -----------------------------------------: |
| SBOM Author | Yes | NTIA-SBOM, CISA-2024-10, TR-03183 |
| SBOM Creation Time-stamp | Yes | NTIA-SBOM, CISA-2024-10, TR-03183 |
| SBOM Format | Yes | CycloneDX 1.6, SPDX 2.3 |
| SBOM Generation Tool | No | |
| **SBOM Location** 👈 | Yes | CRA-AII(9), TR-03183 |
| SBOM Primary Component | No | CycloneDX 1.6, SPDX 3.0 |
| SBOM Release | Yes | CycloneDX 1.6, SPDX 2.3 |
| SBOM Serial Number | Yes | CycloneDX 1.6 SPDX 2.3 |
| SBOM Type | No | CISA-2023-4, CISA-2024-10 |
Note:
- Location: Where to get the most recent SBOM
- Type: “When” in a Supply Chain an SBOM was created
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Attributes for Germany
| Attribute name | Required | References |
| :---------------------------------- | :------: | -----------------------------------------: |
| Executable Property | Yes | TR-03183 |
| Archive Property | Yes | TR-03183 |
| Structured Property | Yes | TR-03183 |
Note:
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Attributes for India
| Attribute name | Required | References |
| :---------------------------------- | :------: | -----------------------------------------: |
| Dependencies (Known unknowns) | Yes | CSCRF |
| Encryption used | Yes | CSCRF |
| Frequency of updates | Yes | CSCRF |
| Access control | Yes | CSCRF |
| Methods for accommodating errors 👈 | Yes | CSCRF |
Note:
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Useful attributes
| Attribute name | Required | References |
| :---------------------------------- | :------: | -----------------------------------------: |
| Download location | No 👈 | |
| Code Commit Revision | No 👈 | |
| Code Repository | No 👈 | |
Note:
- What else is needed to make it easier to manage vulnerabilities?
- A list of known vulnerabilities addressed
- Details on which function/method had a vulnerability fixed
- When & where the package was downloaded from
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Open Source Stewards
| Attribute name | Required | References |
| :---------------------------------- | :------: | -----------------------------------------: |
| Intended for Commercial Use | No | CRA-Rec-15, CRA-Rec-18 |
| Open Source Software Steward | No | CRA-Rec-19 |
| **Security Attestation** 👈 | No | CRA-Rec-21 |
Note:
- Intended for Commercial Use + Attestations + OSS Steward = Possible funding source
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Manufacturers
| Attribute name | Required | References |
| :---------------------------------- | :------: | -----------------------------------------: |
| CE Conformity Assessment Body | No | CRA-Art-47(1), CRA-AV |
| CE Declaration of Conformity | No | CRA-AII(6), CRA-AV |
| CE Support End Date | No | CRA-AII(7) |
| CE Technical Documentation | No | CRA-AII(8) |
| CE Authorized Representative | No | CRA-Art-18 |
Note:
- What’s needed for components that are monetized?
- Maintainer becomes a Manufacturer
- Does the Manufacturer have a Authorised representative?
- This needs also to be supported
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References
* (CISA-2023-4) [CISA Types of Software Bill of Materials (SBOM)](https://www.cisa.gov/resources-tools/resources/types-software-bill-materials-sbom), published 2023-04-21
* (CISA-2024-10) [CISA Framing Software Component Transparency: Establishing a Common Software Bill of Materials (SBOM)](https://www.cisa.gov/sites/default/files/2024-10/SBOM%20Framing%20Software%20Component%20Transparency%202024.pdf), Third edition, sections 2.2.1.4, 2.2.2 and Appendix B; Published 2024-10-15
* (CRA-AII) [Cyber Resilience Act, Annex II](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=303) Information and Instructions to the User, Dated 2024-03-12
* (CRA-AV) [Cyber Resilience Act, Annex V](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=311) EU Declaration of Conformity, Dated 2024-03-12
* (CRA-AVII) [Cyber Resilience Act, Annex VII](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=314) Contents of the Technical Documentation, Dated 2024-03-12
* (CRA-Art-18) [Cyber Resilience Act, Article 18](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=249) Obligations of Authorized Representatives, Dated 2024-03-12
* (CRA-Art-47) [Cyber Resilience Act, Article 47](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=249) Operational obligations of notified bodies, Dated 2024-03-12
* (CRA-Rec-15) [Cyber Resilience Act, Recital 15](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=17) Economic operators, Dated 2024-03-12
* (CRA-Rec-18) [Cyber Resilience Act, Recital 18](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=20) Open Source Software Contributors, Dated 2024-03-12
* (CRA-Rec-19) [Cyber Resilience Act, Recital 19](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=22) Open Source Software Stewards, Dated 2024-03-12
* (CRA-Rec-21) [Cyber Resilience Act, Recital 21](https://www.europarl.europa.eu/doceo/document/TA-9-2024-0130_EN.pdf#page=25) Open Source Security Attestation, Dated 2024-03-12
* (CSCRF) [Cybersecurity and Cyber Resilience Framework (CSCRF) for SEBI Regulated Entities (REs)](https://www.sebi.gov.in/legal/circulars/aug-2024/cybersecurity-and-cyber-resilience-framework-cscrf-for-sebi-regulated-entities-res-_85964.html), (GV.SC.S5, page 89), Securities and Exchange Board of India, Published 2024-08-20
* (TR-03183) German Technical Requirement [TR-03183 Cyber Resilience Requirements for Manufacturers and Products](https://bsi.bund.de/dok/TR-03183), Part 2: Software Bill of Materials (SBOM), Version 2.0.0, published 2024-09-20
* (NTIA-SBOM) [NTIA Minimum Elements for a Software Bill of Materials (SBOM)](https://www.ntia.doc.gov/files/ntia/publications/sbom_minimum_elements_report.pdf#page=9), Published 2021-07-12
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Metadata Headaches
Lots of “opinions” from legislators & gov’t orgs
- ⚠️ Inconsistencies in Terms
- ⚠️ Missing: More attributes needed to achieve security goals?
- ⚠️ Too much: Unnecessary additions, leading to complexity
Note:
- This picture is likely to evolve in the coming years
- Ecosystems would do well to prepare a smooth evolution
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Conclusions?
- It’s a mess
- It’s up to volunteers to improve it
- ~”If it ain’t broke, don’t fix it”~
- Don’t be a bystander
Note:
- “Permissionless Innovation”
- “Being a Good Open Source Citizen”
- We already know that being a bystander doesn’t work – better to step up instead!
Questions & Comments
Thanks!
Salve J. Nilsen
🐘 Mastodon — @sjn\@chaos.social
🦆🦆