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PivotalCVELIST:CVE-2020-5409

HistoryMay 13, 2020 - 11:15 p.m.

CVE-2020-5409 Concourse Open Redirect in the /sky/login endpoint

2020-05-1323:15:17

CWE-601

pivotal

www.cve.org

CVSS3

7.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

AI Score

6.6

Confidence

High

EPSS

0.001

Percentile

49.6%

JSON

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.)

CNA Affected

[
  {
    "product": "Concourse",
    "vendor": "Pivotal",
    "versions": [
      {
        "lessThan": "5.2.8",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "5.5.10",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "5.8.1",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "6.0.0",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

tanzu.vmware.com/security/cve-2020-5409