PT-2017-14647 · October · October Cms

D4Wner · Published 2017-11-25 · Updated 2024-08-05 · CVE-2017-16941

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions October CMS versions 1.0.0 through 1.0.428

Description The issue allows remote authenticated users to execute arbitrary PHP code by downloading a theme ZIP archive from /backend/cms/themes, and then uploading and importing a modified archive with two new files: a .php file and a .htaccess file. The vendor has expressed that they do not consider an attacker with access to manage/upload themes a significant threat model.

Recommendations For October CMS versions 1.0.0 through 1.0.428, consider restricting access to the theme management feature to minimize the risk of exploitation. As a temporary workaround, avoid using the /backend/cms/themes endpoint to download and upload theme ZIP archives until a patch is available. Restrict access to the .htaccess file in themes to prevent arbitrary PHP code execution. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2017-16941

Affected Products

October Cms

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2017-16941 · Security Note
• https://osv.dev/vulnerability/CVE-2017-16941 · Vendor Advisory
• https://github.com/octobercms/october/issues/3257 · Note
• https://t.me/cvenotify/89281 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16941 · Note