CVE-2023-6837 (GCVE-0-2023-6837)

Vulnerability from cvelistv5 – Published: 2023-12-15 09:41 – Updated: 2025-09-25 14:59
VLAI
Title
Incorrect Authorization in Multiple WSO2 Products via Federated Authentication with JIT Provisioning Leading to User Impersonation
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.
Severity
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
WSO2 WSO2 API Manager Unknown: 0 , < 2.5.0 (custom)
Affected: 2.5.0 , < 2.5.0.32 (custom)
Affected: 2.6.0 , < 2.6.0.52 (custom)
Affected: 3.0.0 , < 3.0.0.50 (custom)
Affected: 3.1.0 , < 3.1.0.72 (custom)
Affected: 3.2.0 , < 3.2.0.86 (custom)
Affected: 4.0.0 , < 4.0.0.35 (custom)
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WSO2 WSO2 Identity Server Unknown: 0 , < 5.6.0 (custom)
Affected: 5.6.0 , < 5.6.0.16 (custom)
Affected: 5.7.0 , < 5.7.0.35 (custom)
Affected: 5.8.0 , < 5.8.0.26 (custom)
Affected: 5.9.0 , < 5.9.0.38 (custom)
Affected: 5.10.0 , < 5.10.0.78 (custom)
Affected: 5.11.0 , < 5.11.0.69 (custom)
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WSO2 WSO2 Identity Server as Key Manager Unknown: 0 , < 5.6.0 (custom)
Affected: 5.6.0 , < 5.6.0.17 (custom)
Affected: 5.7.0 , < 5.7.0.39 (custom)
Affected: 5.9.0 , < 5.9.0.45 (custom)
Affected: 5.10.0 , < 5.10.0.80 (custom)
Create a notification for this product.
WSO2 WSO2 Carbon Identity Application Authentication Framework Affected: 5.11.256 , < 5.11.256.3 (custom)
Affected: 5.12.153 , < 5.12.153.21 (custom)
Affected: 5.12.387 , < 5.12.387.7 (custom)
Affected: 5.14.97 , < 5.14.97.22 (custom)
Affected: 5.17.5 , < 5.17.5.106 (custom)
Affected: 5.18.187 , < 5.18.187.76 (custom)
Unaffected: 5.20.254 , ≤ * (custom)
Create a notification for this product.
Credits
Nghĩa Vũ Trung
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.