CVE-2021-21245

moderate-risk
Published 2021-01-15

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.

Do I need to act?

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0.34% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 4bd71941974a1b077e955616d7ba3da6fd21670c, 0c060153fb97c0288a1917efdb17cc426934dacb
10
CVSS 10.0/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Onedev Project

References (4)

Patch https://github.com/theonedev/onedev/commit/0c060153fb97c0288a1917efdb17cc426934d...
Third Party Advisory https://github.com/theonedev/onedev/security/advisories/GHSA-62m2-38q5-96w9
Patch https://github.com/theonedev/onedev/commit/0c060153fb97c0288a1917efdb17cc426934d...
Third Party Advisory https://github.com/theonedev/onedev/security/advisories/GHSA-62m2-38q5-96w9
39
/ 100
moderate-risk
Severity 33/34 · Critical
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal