CVE-2020-27304
Critical
Description
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
SeverityCritical
CVSS9.8
Exploit probability—
ProductCivetweb
PublishedOct 21, 2021
First seenOct 21, 2021
Weakness typeCWE-23CWE-23
How to fix
Update
- civetweb_project civetweb1.15 or later
- siemens sinec_infrastructure_network_services1.0.1.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| civetweb_project civetweb | 1.8 ≤ v < 1.15 | 1.15 |
| siemens sinec_infrastructure_network_services | v < 1.0.1.1 | 1.0.1.1 |
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