CVE-2020-5402 UAA fails to check the state parameter when authenticating with external IDPs

2020-02-2719:30:24

CWE-352

pivotal

www.cve.org

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.6

Confidence

High

EPSS

0.001

Percentile

31.5%

JSON

In Cloud Foundry UAA, versions prior to 74.14.0, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function when authenticating with external identity providers.

CNA Affected

[
  {
    "product": "UAA",
    "vendor": "Cloud Foundry",
    "versions": [
      {
        "lessThan": "v74.14.0",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]