CVE-2020-5409
Concourse Open Redirect in the /sky/login endpoint
6.1
MEDIUM
CVSS 3.1
EPSS 0.67%
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.)
How to fix CVE-2020-5409
To remediate CVE-2020-5409, upgrade the affected package to a fixed version below.
- —upgrade to 5.2.8 or later
Is CVE-2020-5409 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 5.2.8, >= 5.3.0, < 5.5.10, >= 5.6.0, < 5.8.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |