Arbitrary file upload in FastCMS

1) Arbitrary file upload

EUVDB-ID: #VU71814

Risk: Medium

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2023-0651

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload in the Template Management component. A remote user can upload a malicious file and execute it on the server.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

FastCMS: 0.1.0

External links

http://github.com/linmoren/fastcms_bug/blob/main/template_files_upload.md
http://github.com/linmoren/fastcms_bug/blob/main/password.zip
http://vuldb.com/?id.220038
http://vuldb.com/?ctiid.220038

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.