Vulnerability Details : CVE-2020-5402
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.
Vulnerability category: Cross-site request forgery (CSRF)
Products affected by CVE-2020-5402
- cpe:2.3:a:cloudfoundry:cf-deployment:*:*:*:*:*:*:*:*
- cpe:2.3:a:cloudfoundry:user_account_and_authentication:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-5402
0.21%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 44 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-5402
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
Pivotal Software, Inc. | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2020-5402
-
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.Assigned by:
- nvd@nist.gov (Primary)
- security@pivotal.io (Secondary)
References for CVE-2020-5402
-
https://www.cloudfoundry.org/blog/cve-2020-5402
CVE-2020-5402: UAA fails to check the state parameter when authenticating with external IDPs | Cloud FoundryVendor Advisory
Jump to