Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by improper validation of mkdocs theme configuration in techdocs. When TechDocs is configured to build documentation locally or in a container, a user with write access to a registered repository can include configuration values in mkdocs.yml that cause arbitrary code execution during the documentation build process.
This issue is fixed in versions 1.14.6 and 1.15.4.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 9
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Linuxfoundation Backstage_Plugin-Techdocs-Node
cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:*:*:*:*:*:*:*:*
|
— |
1.14.6
|
|
Linuxfoundation Backstage_Plugin-Techdocs-Node
cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:*:*:*:*:*:*:*:*
|
1.15.0
|
1.15.4
|
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
|
— |
1.50.5
|
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
|
1.51.1
|
1.54.6
|
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:1.51.0:-:*:*:*:*:*:*
|
— | — |
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:1.51.0:next0:*:*:*:*:*:*
|
— | — |
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:1.51.0:next1:*:*:*:*:*:*
|
— | — |
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:1.51.0:next2:*:*:*:*:*:*
|
— | — |
|
Linuxfoundation Backstage
cpe:2.3:a:linuxfoundation:backstage:1.51.0:next3:*:*:*:*:*:*
|
— | — |
References 5
https://github.com/backstage/backstage/security/advisories/GHSA-8w7q-29mw-gf5c
https://github.com/backstage/backstage/security/advisories/GHSA-8w7q-29mw-gf5c
https://github.com/backstage/backstage/commit/02cd7cdbb18b687446277b5602adaee7f…
https://github.com/backstage/backstage/commit/02cd7cdbb18b687446277b5602adaee7f1d53cbb
https://github.com/backstage/backstage/commit/a900a9953c8f7ad3ba1906d1d257725a9…
https://github.com/backstage/backstage/commit/a900a9953c8f7ad3ba1906d1d257725a9996cc9d
https://github.com/backstage/backstage/releases/tag/v1.50.5
https://github.com/backstage/backstage/releases/tag/v1.50.5
https://github.com/backstage/backstage/releases/tag/v1.54.6
https://github.com/backstage/backstage/releases/tag/v1.54.6