// For flags

CVE-2021-21245

Pre-Auth Arbitrary File Upload

Severity Score

9.8
*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, AttachmentUploadServlet also saves user controlled data (`request.getInputStream()`) to a user specified location (`request.getHeader("File-Name")`). This issue may lead to arbitrary file upload which can be used to upload a WebShell to OneDev server. This issue is addressed in 4.0.3 by only allowing uploaded file to be in attachments folder. The webshell issue is not possible as OneDev never executes files in attachments folder.

OneDev es una plataforma devops todo en uno. En OneDev versiones anteriores a 4.0.3, AttachmentUploadServlet también guarda unos datos controlados por el usuario ("request.getInputStream()") en una ubicación especificada del usuario ("request.getHeader ("File-Name")"). Este problema puede conllevar a una carga de archivos arbitrarios que pueden ser usados para cargar un WebShell en el servidor de OneDev. Este problema es abordado en la versión 4.0.3, al permitir solo que el archivo cargado esté en la carpeta de archivos adjuntos. El problema del webshell no es posible ya que OneDev nunca ejecuta archivos en la carpeta de archivos adjuntos

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* 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-434: Unrestricted Upload of File with Dangerous Type
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