Vulnerability CVE-2023-33977
Published: 2023-06-06

Description:
Kiwi TCMS is an open source test management system for both manual and automated testing. Kiwi TCMS allows users to upload attachments to test plans, test cases, etc. Earlier versions of Kiwi TCMS had introduced upload validators in order to prevent potentially dangerous files from being uploaded and Content-Security-Policy definition to prevent cross-site-scripting attacks. The upload validation checks were not 100% robust which left the possibility to circumvent them and upload a potentially dangerous file which allows execution of arbitrary JavaScript in the browser. Additionally we've discovered that Nginx's `proxy_pass` directive will strip some headers negating protections built into Kiwi TCMS when served behind a reverse proxy. This issue has been addressed in version 12.4. Users are advised to upgrade. Users unable to upgrade who are serving Kiwi TCMS behind a reverse proxy should make sure that additional header values are still passed to the client browser. If they aren't redefining them inside the proxy configuration.

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

 References:
https://github.com/kiwitcms/Kiwi/commit/d789f4b51025de4f8c747c037d02e1b0da80b034
https://github.com/kiwitcms/Kiwi/blob/master/etc/nginx.conf#L87
https://github.com/kiwitcms/Kiwi/blob/master/etc/nginx.conf#L66-L68
https://github.com/kiwitcms/Kiwi/security/advisories/GHSA-2fqm-m4r2-fh98
https://huntr.dev/bounties/6aea9a26-e29a-467b-aa5a-f767f0c2ec96/
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