CVE-2021-21243

Pre-Auth Unsafe Deserialization on KubernetesResource

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, a Kubernetes REST endpoint exposes two methods that deserialize untrusted data from the request body. These endpoints do not enforce any authentication or authorization checks. This issue may lead to pre-auth RCE. This issue was fixed in 4.0.3 by not using deserialization at KubernetesResource side.

OneDev es una plataforma devops todo en uno. En OneDev versiones anteriores a 4.0.3, un endpoint REST de Kubernetes expone dos métodos que deserializan datos no confiables desde el cuerpo de la petición. Estos endpoints no aplican ninguna comprobación de autenticación o autorización. Este problema puede conllevar a una RCE previa a la autenticación. Este problema se corrigió en la versión 4.0.3 al no usar la deserialización en el lado de KubernetesResource

*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-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-502: Deserialization of Untrusted Data

CAPEC

References (2)

URL	Tag	Source
https://github.com/theonedev/onedev/security/advisories/GHSA-9mmq-fm8c-q4fv	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/theonedev/onedev/commit/9637fc8fa461c5777282a0021c3deb1e7a48f137	2021-01-21

URL	Date	SRC

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