CVE-2023-42439: GeoNode SSRF Bypass to return internal host data
First published: Fri Sep 15 2023(Updated: )
A SSRF vulnerability exists, bypassing existing controls on the software. This can allow a user to request internal services for a full read SSRF, returning any data from the internal network. the application is using a whitelist, but the whitelist can be bypassed with @ and encoded value of @ (%40) GET /proxy/?url=http://development.demo.geonode.org%40geoserver:8080/geoserver/web This will trick the application that the first host is a whitelisted address, but the browser will use @ or %40 as a credential to the host geoserver on port 8080, this will return the data to that host on the response. 
Credit: security-advisories@github.com security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/GeoNode | >=3.2.0<=4.1.2 | 4.1.3.post1 |
| Geosolutionsgroup Geonode | >=3.2.0 | |
| Geosolutionsgroup Geonode | >=3.2.0<4.1.3 |
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Reference Links
- https://github.com/GeoNode/geonode/security/advisories/GHSA-pxg5-h34r-7q8p
- https://nvd.nist.gov/vuln/detail/CVE-2023-42439
- https://github.com/GeoNode/geonode/commit/79ac6e70419c2e0261548bed91c159b54ff35b8d
- https://github.com/GeoNode/geonode/releases/tag/4.1.3
- https://github.com/pypa/advisory-database/tree/main/vulns/geonode/PYSEC-2023-176.yaml
- https://github.com/advisories/GHSA-pxg5-h34r-7q8p (Advisory)
Frequently Asked Questions
What is the CVE ID of this vulnerability?
The CVE ID of this vulnerability is CVE-2023-42439.
What is the severity of CVE-2023-42439?
The severity of CVE-2023-42439 is high with a CVSS score of 6.5.
What is the affected software?
The affected software is GeoNode version 3.2.0 up to 4.1.2.
What is the vulnerability description for CVE-2023-42439?
CVE-2023-42439 is a SSRF vulnerability in GeoNode that allows bypassing existing controls and can be used to request internal services for a full read SSRF, returning any data from the internal network.
How can I fix CVE-2023-42439?
To fix CVE-2023-42439, upgrade to GeoNode version 4.1.3 or later.
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