CVE-2021-21245

Pre-Auth Arbitrary File Upload

Description

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.

Category

10.0
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.34%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: theonedev onedev
Published at:
Updated at:

References

Link Tags
https://github.com/theonedev/onedev/security/advisories/GHSA-62m2-38q5-96w9 third party advisory
https://github.com/theonedev/onedev/commit/0c060153fb97c0288a1917efdb17cc426934dacb third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-21245?
CVE-2021-21245 has been scored as a critical severity vulnerability.
How to fix CVE-2021-21245?
To fix CVE-2021-21245, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21245 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-21245 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21245?
CVE-2021-21245 affects theonedev onedev.
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