Vulnerability Description
ApiFest OAuth 2.0 Server 0.3.1 does not validate the redirect URI in accordance with RFC 6749 and is susceptible to an open redirector attack. Specifically, it directly sends an authorization code to the redirect URI submitted with the authorization request, without checking whether the redirect URI is registered by the client who initiated the request. This allows an attacker to craft a request with a manipulated redirect URI (redirect_uri parameter), which is under the attacker's control, and consequently obtain the leaked authorization code when the server redirects the client to the manipulated redirect URI with an authorization code. NOTE: this is similar to CVE-2019-3778.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apifest | Oauth 2.0 Server | 0.3.1 |
Related Weaknesses (CWE)
References
- http://www.apifest.org/index.htmlVendor Advisory
- https://github.com/apifest/apifest-oauth20Third Party Advisory
- https://tools.ietf.org/html/rfc6749#section-3.1.2.3Third Party Advisory
- http://www.apifest.org/index.htmlVendor Advisory
- https://github.com/apifest/apifest-oauth20Third Party Advisory
- https://tools.ietf.org/html/rfc6749#section-3.1.2.3Third Party Advisory
FAQ
What is CVE-2020-26877?
CVE-2020-26877 is a vulnerability with a CVSS score of 6.1 (MEDIUM). ApiFest OAuth 2.0 Server 0.3.1 does not validate the redirect URI in accordance with RFC 6749 and is susceptible to an open redirector attack. Specifically, it directly sends an authorization code to ...
How severe is CVE-2020-26877?
CVE-2020-26877 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26877?
Check the references section above for vendor advisories and patch information. Affected products include: Apifest Oauth 2.0 Server.