// For flags

CVE-2021-21246

Pre-Auth Access token leak

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, the REST UserResource endpoint performs a security check to make sure that only administrators can list user details. However for the `/users/{id}` endpoint there are no security checks enforced so it is possible to retrieve arbitrary user details including their Access Tokens! These access tokens can be used to access the API or clone code in the build spec via the HTTP(S) protocol. It has permissions to all projects accessible by the user account. This issue may lead to `Sensitive data leak` and leak the Access Token which can be used to impersonate the administrator or any other users. This issue was addressed in 4.0.3 by removing user info from restful api.

OneDev es una plataforma devops todo en uno. En OneDev versiones anteriores a 4.0.3, el endpoint de REST UserResource lleva a cabo una comprobación de seguridad para asegurarse de que solo los administradores puedan enumerar los detalles del usuario. Sin embargo, para el endpoint "/users/{id}" no son aplicados controles de seguridad, por lo que es posible recuperar detalles arbitrarios del usuario, incluyendo sus tokens de acceso. Estos tokens de acceso pueden ser usados para acceder a la API o al código de clonación en la especificación de compilación por medio del protocolo HTTP(S). Presenta permisos para todos los proyectos accesibles por la cuenta de usuario. Este problema puede conllevar a una "filtración de datos confidenciales" y el token de acceso, que puede ser usada para hacerse pasar por el administrador o cualquier otro usuario. Este problema fue abordado en la versión 4.0.3 al eliminar la información del usuario de la API restful

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-22 CVE Reserved
  • 2021-01-15 CVE Published
  • 2023-10-01 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-862: Missing Authorization
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Onedev Project
Search vendor "Onedev Project"
 Onedev
Search vendor "Onedev Project" for product "Onedev"
 < 4.0.3
Search vendor "Onedev Project" for product "Onedev" and version " < 4.0.3"
-
Affected