Kurz gesagt
- CVE-2020-4037 ist eine Schwachstelle (MITTEL (CVSS 5.4)) in github.com/oauth2-proxy/oauth2-proxy, oauth2 proxy (oauth2 proxy project).
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.90%, höher als bei 59.6% aller Schwachstellen.
- Abhilfe: auf 6.0.0 oder neuer aktualisieren.
Description
Impact
As users can provide a redirect address for the proxy to send the authenticated user to at the end of the authentication flow. This is expected to be the original URL that the user was trying to access.
This redirect URL is checked within the proxy and validated before redirecting the user to prevent malicious actors providing redirects to potentially harmful sites.
NVD description
In OAuth2 Proxy from version 5.1.1 and less than version 6.0.0, users can provide a redirect address for the proxy to send the authenticated user to at the end of the authentication flow. This is expected to be the original URL that the user was trying to access. This redirect URL is checked within the proxy and validated before redirecting the user to prevent malicious actors providing redirects to potentially harmful sites. This has been fixed in version 6.0.0.
Weitere Schwachstellen in github.com/oauth2-proxy/oauth2-proxy
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