Headline
CVE-2023-40017: Server Side Request forgery
GeoNode is an open source platform that facilitates the creation, sharing, and collaborative use of geospatial data. In versions 3.2.0 through 4.1.2, the endpoint /proxy/?url= does not properly protect against server-side request forgery. This allows an attacker to port scan internal hosts and request information from internal hosts. A patch is available at commit a9eebae80cb362009660a1fd49e105e7cdb499b9.
Summary
Hello, I have found a server side request forgery vuln within geonode when testing on a bug bounty program. Server side request forgery allows a user to request information on the internal service/services.
Details
The endpoint /proxy/?url= does not properly protect against SSRF. when using the following format you can request internal hosts and display data. /proxy/?url=http://169.254.169.254\@whitelistedIPhere. This will state wether the AWS internal IP is alive. If you get a 404, the host is alive. A non alive host will not display a response. To display metadata, use a hashfrag on the url /proxy/?url=http://169.254.169.254\@#whitelisteddomain.com or try /proxy/?url=http://169.254.169.254\@%23whitelisteddomain.com
Impact
Port scan internal hosts, and request information from internal hosts.