// For flags

CVE-2020-5409

Concourse Open Redirect in the /sky/login endpoint

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.)

En Pivotal Concourse, la mayoría de las versiones anteriores a 6.0.0, permiten redireccionamientos hacia sitios web no confiables en su flujo de inicio de sesión. Un atacante remoto no autenticado podría convencer a un usuario de hacer clic sobre un enlace utilizando el enlace de redireccionamiento OAuth con un sitio web no confiable y conseguir acceso al token de acceso de ese usuario en Concourse. (Este problema es similar pero distinto de CVE-2018-15798).

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-01-03 CVE Reserved
  • 2020-05-13 CVE Published
  • 2023-05-17 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://tanzu.vmware.com/security/cve-2020-5409 2020-05-15
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Pivotal Software
Search vendor "Pivotal Software"
 Concourse
Search vendor "Pivotal Software" for product "Concourse"
 < 5.2.8
Search vendor "Pivotal Software" for product "Concourse" and version " < 5.2.8"
-
Affected
Pivotal Software
Search vendor "Pivotal Software"
 Concourse
Search vendor "Pivotal Software" for product "Concourse"
 >= 5.3.0 < 5.5.10
Search vendor "Pivotal Software" for product "Concourse" and version " >= 5.3.0 < 5.5.10"
-
Affected
Pivotal Software
Search vendor "Pivotal Software"
 Concourse
Search vendor "Pivotal Software" for product "Concourse"
 >= 5.6.0 < 5.8.1
Search vendor "Pivotal Software" for product "Concourse" and version " >= 5.6.0 < 5.8.1"
-
Affected