Description (CNA)
Versions of the package fastapi-sso before 0.19.0 are vulnerable to Cross-site Request Forgery (CSRF) due to the improper validation of the OAuth state parameter during the authentication callback. While the get_login_url method allows for state generation, it does not persist the state or bind it to the user's session. Consequently, the verify_and_process method accepts the state received in the query parameters without verifying it against a trusted local value. This allows a remote attacker to trick a victim into visiting a malicious callback URL, which can result in the attacker's account being linked to the victim's internal account.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / fastapi-sso | affected 0 before 0.19.0 |
CWE
CWE-285
References
- https://security.snyk.io/vuln/SNYK-PYTHON-FASTAPISSO-14386403
- https://github.com/tomasvotava/fastapi-sso/commit/6117d1a5ad498ba57d671e8a059ebe20db5abe02
- https://github.com/tomasvotava/fastapi-sso/issues/266
ADP enrichment
No English description supplied.
No references supplied.