CVE Vulnerability

CVE-2021-21247

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, the application's BasePage registers an AJAX event listener (`AbstractPostAjaxBehavior`) in all pages other than the login page. This listener decodes and deserializes the `data` query parameter. We can access this listener by submitting a POST request to any page. This issue may lead to `post-auth RCE` This endpoint is subject to authentication and, therefore, requires a valid user to carry on the attack. This issue was addressed in 4.0.3 by encrypting serialization payload with secrets only known to server.

6.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/theonedev/onedev/security/advisories/GHSA-6pxf-75cf-vwjp Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:onedev_project:onedev:*:*:*:*:*:*:*:*
Information

Published : 2021-01-15 09:15

Updated : 2021-01-21 03:21

NVD link : CVE-2021-21247

Mitre link : CVE-2021-21247

Products Affected
No products.
CWE
CWE-502

Deserialization of Untrusted Data