Open Redirect in Pivotal Concourse
CVE-2020-5409
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.)
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.009 (58.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Pivotal Concourse — versions unspecified
- Pivotal Software Concourse
Weakness classification (CWE)
References
- tanzu.vmware.com/security/cve-2020-5409 (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-5409?
- CVE-2020-5409 is a medium-severity vulnerability in Pivotal Concourse, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2020-05-14.
- How severe is CVE-2020-5409?
- Medium severity. CVSS v3 base score is 6.1 out of 10.