CVE-2020-5402

UAA fails to check the state parameter when authenticating with external IDPs

Description

In Cloud Foundry UAA, versions prior to 74.14.0, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function when authenticating with external identity providers.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.21%
Vendor Advisory cloudfoundry.org
Affected: Cloud Foundry UAA
Published at:
Updated at:

References

Link Tags
https://www.cloudfoundry.org/blog/cve-2020-5402 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-5402?
CVE-2020-5402 has been scored as a high severity vulnerability.
How to fix CVE-2020-5402?
To fix CVE-2020-5402, 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-2020-5402 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-5402 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-5402?
CVE-2020-5402 affects Cloud Foundry UAA.
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