CVEvulnerability
CVE-2021-21247
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-01-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.6 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
- Weaknesses
- CWE-502, CWE-74
Description
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.
Affected configurations
• onedev project onedev (< 4.0.3)
Related
References
- https://github.com/theonedev/onedev/security/advisories/GHSA-6pxf-75cf-vwjp Third Party Advisory
- https://github.com/theonedev/onedev/security/advisories/GHSA-6pxf-75cf-vwjp Third Party Advisory