CVE-2021-21242 Information

Description

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3 there is a critical vulnerability which can lead to pre-auth remote code execution. AttachmentUploadServlet deserializes untrusted data from the Attachment-Support header. This Servlet does not enforce any authentication or authorization checks. This issue may lead to pre-auth remote code execution. This issue was fixed in 4.0.3 by removing AttachmentUploadServlet and not using deserialization

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/theonedev/onedev/commit/f864053176c08f59ef2d97fea192ceca46a4d9be https://github.com/theonedev/onedev/security/advisories/GHSA-5q3q-f373-2jv8

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8