CVE-2023-6837 json
Incorrect Authorization in Multiple WSO2 Products via Federated Authentication with JIT Provisioning Leading to User Impersonation
published 2023-12-15 2 y ago modified 2026-06-17 4 mo ago also GHSA-f6jm-9pr8-9c3w , EUVD-2023-3194
- cvss
- 8.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
Multiple WSO2 products have been identified as vulnerable to perform user impersonatoin using JIT provisioning. In order for this vulnerability to have any impact on your deployment, following conditions must be met:
* An IDP configured for federated authentication and JIT provisioning enabled with the "Prompt for username, password and consent" option. * A service provider that uses the above IDP for federated authentication and has the "Assert identity using mapped local subject identifier" flag enabled.
Attacker should have:
* A fresh valid user account in the federated IDP that has not been used earlier. * Knowledge of the username of a valid user in the local IDP.
When all preconditions are met, a malicious actor could use JIT provisioning flow to perform user impersonation.
Patch / fix
- maven org.wso2.carbon.identity.framework:org.wso2.carbon.identity.application.authentication.framework 5.20.254
- maven org.wso2.identity.apps:authentication-portal 1.6.179.1
- WSO2 WSO2 API Manager 2.5.0.32, 2.6.0.52, 3.0.0.50, 3.1.0.72, 3.2.0.86, 4.0.0.35
- WSO2 WSO2 Identity Server 5.6.0.16, 5.7.0.35, 5.8.0.26, 5.9.0.38, 5.10.0.78, 5.11.0.69
- WSO2 WSO2 Identity Server as Key Manager 5.6.0.17, 5.7.0.39, 5.9.0.45, 5.10.0.80
- WSO2 WSO2 Carbon Identity Application Authentication Framework 5.11.256.3, 5.12.153.21, 5.12.387.7, 5.14.97.22, 5.17.5.106, 5.18.187.76, 5.20.254
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| NVD | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N |
| GitHub | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.wso2.carbon.identity.framework:org.wso2.carbon.identity.application.authentication.framework | <5.20.254 |
5.20.254 |
| maven | org.wso2.identity.apps:authentication-portal | <1.6.179.1 |
1.6.179.1 |
Affected products
- WSO2 WSO2 API Manager
- WSO2 WSO2 Identity Server
- WSO2 WSO2 Identity Server as Key Manager
- WSO2 WSO2 Carbon Identity Application Authentication Framework
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/wso2/carbon-identity-framework/commit/fdab609760784086b8a3f55f7acf46d977a03d79
web
-
github.com
/wso2/identity-apps/commit/1424203bbe81688d661ea8b8cd28e332302e1c53
web
-
security.docs.wso2.com
/en/latest/security-announcements/security-advisories/2022/WSO2-2021-1573/
vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-6837
advisory
-
security.docs.wso2.com
/en/latest/security-announcements/security-advisories/2022/WSO2-2021-1573
web
Sources
- CVE List CVE-2023-6837
- GitHub Advisory GHSA-f6jm-9pr8-9c3w
- NVD CVE-2023-6837
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