Sandeep,

 

A good example of a VEX advisory is provided by Siemens in their log4j advisory:

https://cert-portal.siemens.com/productcert/csaf/ssa-661247.json

 

NOTE: VEX’s are vulnerability centric, where a vulnerability is reported and a 
vendor issues a VEX.

 

It’s important to note that a VEX is very different from a product centric 
vulnerability disclosure report (VDR) which NIST requires for Executive Order 
14028.

 

If you plan to sell products to the US Government then you will need to follow 
NIST’s requirements for Executive Order 14028:

https://www.nist.gov/itl/executive-order-14028-improving-nations-cybersecurity/software-security-supply-chains-software-1

 

“Maintain vendor vulnerability disclosure reports at the SBOM component level “

 

Here is the difference between a VEX and a VDR (attestation).

A VEX is an artifact showing the status of vulnerabilities within a product or 
products. Components with no vulnerabilities are not listed in a VEX, unless 
there is a "known not affected" status listed in the VEX. 

A VDR is an attestation by a software vendor that they have checked each 
component of a software product in an SBOM for vulnerabilities and reports on 
the vulnerability status of each component, for a software product. A VDR is 
dynamically updated and maintained by the software vendor in order to answer 
the consumer question  
<https://energycentral.com/c/um/bod-and-c-level-series-software-vulnerability-reporting-and-risk-management>
 "What is the vulnerability status of Product P, NOW?" 

 

Thanks,

 

Dick Brooks

  

Active Member of the CISA Critical Manufacturing Sector, 

Sector Coordinating Council – A Public-Private Partnership

 

 <https://reliableenergyanalytics.com/products> Never trust software, always 
verify and report! ™

 <http://www.reliableenergyanalytics.com/> 
http://www.reliableenergyanalytics.com

Email:  <mailto:[email protected]> 
[email protected]

Tel: +1 978-696-1788

 

From: [email protected] <[email protected]> On Behalf Of Jeff Schutt 
(jefschut) via lists.spdx.org
Sent: Thursday, June 2, 2022 1:40 PM
To: [email protected]; [email protected]; [email protected]
Subject: Re: [spdx-defects] [spdx] VEX integration in SPDX #spdx

 

Hi Sandeep,

 

To add to Rose’s comments…

 

For version 2.3, the new Advisory identifier (F.2.3 
<https://github.com/spdx/spdx-spec/blob/b57e348b19b4ba03474c7293f2c5b86878e23d4c/chapters/external-repository-identifiers.md#f23-advisory->
 ) is a catch-all that will enable linking to any VEX information, e.g., as 
contained within OSV or CSAF file. 

 

We’re currently working on further security vulnerability information 
integrations with version 3.0 of the SPDX spec and would welcome your 
contributions :) Meetings are Wednesdays at 11am PT.

 

Jeff

 

 

From: <[email protected] <mailto:[email protected]> > on behalf of "Rose 
Judge via lists.spdx.org" <[email protected] 
<mailto:[email protected]> >
Reply-To: "[email protected] <mailto:[email protected]> " 
<[email protected] <mailto:[email protected]> >
Date: Thursday, June 2, 2022 at 10:30 AM
To: "[email protected] <mailto:[email protected]> " <[email protected] 
<mailto:[email protected]> >, "[email protected] 
<mailto:[email protected]> " <[email protected] 
<mailto:[email protected]> >, "[email protected] 
<mailto:[email protected]> " <[email protected] 
<mailto:[email protected]> >
Subject: Re: [spdx-defects] [spdx] VEX integration in SPDX #spdx

 

Hi Sandeep,

 

The SPDX Defects working group announced security enhancements to the 
ExternalReference section 
<https://github.com/spdx/spdx-spec/blob/b57e348b19b4ba03474c7293f2c5b86878e23d4c/chapters/external-repository-identifiers.md#f2-security->
  of the spec as well as an explanatory Annex about how to include security 
information in an SPDX document 
<https://github.com/spdx/spdx-spec/blob/e25d183ade64c123770412297b9bf5086a7ed0bf/chapters/how-to-use.md#g1-including-security-information-in-a-spdx-document>
 . These changes apply to spec version 2.3 which should be released by the end 
of the month.

 

In order to include security/vulnerability information in 2.3, you will want to 
use the SECURITY ExternalReference Type. When using this format, there’s 
several security identifiers available: cpe22type, cpe23type, advisory, fix, 
url or swid that you can use to reference a VEX document. You can see examples 
of how this might be done in the link to Annex G above.

 

I’m also adding the SPDX Defects workgroup to the CC in case you have any 
further questions.

 

Thanks,

Rose

 

 


Subject: 

[EXT] [spdx] VEX integration in SPDX #spdx


Date: 

Tue, 31 May 2022 22:49:51 -0700


From: 

Patil, Sandeep via lists.spdx.org  
<mailto:[email protected]> 
<[email protected]>


Reply-To: 

[email protected] <mailto:[email protected]> 


To: 

[email protected] <mailto:[email protected]> 



Hi , 
Is there any roadmap to integrate VEX to  with SPDX ? Or is there already way 
in current SPDX specification to integrate vulnerability information ? 


Regards
Sandeep  

 

  _____  

⚠ External Email: This email originated from outside of the organization. Do 
not click links or open attachments unless you recognize the sender.





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