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CVE-2021-32661 Detail

Description

Backstage is an open platform for building developer portals. In versions of Backstage's Techdocs Plugin (`@backstage/plugin-techdocs`) prior to 0.9.5, a malicious internal actor can potentially upload documentation content with malicious scripts by embedding the script within an `object` element. This may give access to sensitive data when other users visit that same documentation page. The ability to upload malicious content may be limited by internal code review processes, unless the chosen TechDocs deployment method is to use an object store and the actor has access to upload files directly to that store. The vulnerability is patched in the `0.9.5` release of `@backstage/plugin-techdocs`.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  7.3 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
Base Score:  6.8 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644dceb5c Patch  Third Party Advisory 
https://github.com/backstage/backstage/commit/aad98c544e59369901fe9e0a85f6357644dceb5c Patch  Third Party Advisory 
https://github.com/backstage/backstage/releases/tag/release-2021-06-03 Third Party Advisory 
https://github.com/backstage/backstage/releases/tag/release-2021-06-03 Third Party Advisory 
https://github.com/backstage/backstage/security/advisories/GHSA-gg96-f8wr-p89f Third Party Advisory 
https://github.com/backstage/backstage/security/advisories/GHSA-gg96-f8wr-p89f Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-434 Unrestricted Upload of File with Dangerous Type cwe source acceptance level NIST  
CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection') GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:linuxfoundation:\@backstage\/plugin-techdocs:*:*:*:*:*:node.js:*:*
   Show Matching CPE(s)
Up to (excluding)
0.9.5

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-32661
NVD Published Date:
06/03/2021
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.