CVE-2020-5409

Concourse Open Redirect in the /sky/login endpoint

Description

Pivotal Concourse, most versions prior to 6.0.0, allows redirects to untrusted websites in its login flow. A remote unauthenticated attacker could convince a user to click on a link using the OAuth redirect link with an untrusted website and gain access to that user's access token in Concourse. (This issue is similar to, but distinct from, CVE-2018-15798.)

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.67% Top 30%
Vendor Advisory vmware.com
Affected: Pivotal Concourse
Published at:
Updated at:

References

Link Tags
https://tanzu.vmware.com/security/cve-2020-5409 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-5409?
CVE-2020-5409 has been scored as a medium severity vulnerability.
How to fix CVE-2020-5409?
To fix CVE-2020-5409, 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-2020-5409 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-5409 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-5409?
CVE-2020-5409 affects Pivotal Concourse.
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