PT-2018-14707 · Nc · Nc-Cms

Published 2018-10-31 · Updated 2018-12-10 · CVE-2018-18874

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions nc-cms versions prior to 2017-03-10

Description The issue allows remote attackers to execute arbitrary PHP code via the "Upload File or Image" feature. This can be achieved by uploading a file with a .php filename and setting the Content-Type to application/octet-stream in the request to the "index.php?action=file manager upload" API endpoint.

Recommendations For versions prior to 2017-03-10, as a temporary workaround, consider disabling the file upload feature in the file manager upload action until a patch is available. Restrict access to the index.php?action=file manager upload endpoint to minimize the risk of exploitation. Avoid using the Content-Type: application/octet-stream header in requests to this endpoint until the issue is resolved.

Exploit

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2018-18874

Affected Products

Nc-Cms

References · 3

• 🔥 https://github.com/gnat/nc-cms/issues/11 · Exploit
• https://osv.dev/vulnerability/CVE-2018-18874 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-18874 · Security Note