CVE-2021-27582

Public Exploit

Description

org/mitre/oauth2/web/OAuthConfirmationController.java in the OpenID Connect server implementation for MITREid Connect through 1.3.3 contains a Mass Assignment (aka Autobinding) vulnerability. This arises due to unsafe usage of the @ModelAttribute annotation during the OAuth authorization flow, in which HTTP request parameters affect an authorizationRequest.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.62%
Third-Party Advisory blogspot.com Third-Party Advisory github.com Third-Party Advisory portswigger.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/mitreid-connect/OpenID-Connect-Java-Spring-Server/commit/7eba3c12fed82388f917e8dd9b73e86e3a311e4c third party advisory patch
http://agrrrdog.blogspot.com/2017/03/autobinding-vulns-and-spring-mvc.html third party advisory exploit
https://portswigger.net/research/hidden-oauth-attack-vectors third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-27582?
CVE-2021-27582 has been scored as a critical severity vulnerability.
How to fix CVE-2021-27582?
To fix CVE-2021-27582, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-27582 being actively exploited in the wild?
It is possible that CVE-2021-27582 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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