CVE-2020-27304

EPSS 3.1%CWE-23

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 3.1%KEV nãoPoC —Patch —

Lifecycle

Oct 21, 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

The CivetWeb web library does not validate uploaded filepaths when running on an OS other than Windows, when using the built-in HTTP form-based file upload mechanism, via the mg_handle_form_request API. Web applications that use the file upload form handler, and use parts of the user-controlled filename in the output path, are susceptible to directory traversal

Affected products

civetweb_project · civetweb

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://groups.google.com/g/civetweb/c/yPBxNXdGgJQ https://jfrog.com/blog/cve-2020-27304-rce-via-directory-traversal-in-civetweb-http-server/