In OAuth2 Proxy before 5.1.1, there is an open redirect vulnerability. 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. However, by crafting a redirect URL with HTML encoded whitespace characters the validation could be bypassed and allow a redirect to any URL provided. This has been patched in 5.1.1.
References
Link | Resource |
---|---|
https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-j7px-6hwj-hpjg | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: GitHub_M
Published: 2020-05-07T20:30:13
Updated: 2020-05-07T20:30:13
Reserved: 2020-03-30T00:00:00
Link: CVE-2020-11053
JSON object: View
NVD Information
Status : Analyzed
Published: 2020-05-07T21:15:11.530
Modified: 2024-02-15T03:20:26.743
Link: CVE-2020-11053
JSON object: View
Redhat Information
No data.
CWE