CVE-2020-5402
UAA fails to check the state parameter when authenticating with external IDPs
HIGH
8.8
CVSS Score
Published: February 27, 2020 at 07:30 PM UTC
Updated: June 17, 2026 at 03:21 AM UTC
2 products affected across 1 vendorCF DeploymentUser Account and Authentication
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Severity
HIGH8.8
Exploit prediction
EPSS 0.5%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 12.33.0
Affected range stops below 12.33.0, so it looks safe — our inference, not a vendor statement
v < 74.14.0v < v74.14.0
Affected range stops below 74.14.0, so it looks safe — our inference, not a vendor statement
Affected range stops below v74.14.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.cloudfoundry.org/blog/cve-2020-5402CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-352
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