October CMS up to 1.0.428 Theme .htaccess ZIP Archive unrestricted upload ⚔ [Disputed]

Summaryinfo

A vulnerability labeled as critical has been found in October CMS up to 1.0.428. Affected is an unknown function of the file .htaccess of the component Theme Handler. Executing a manipulation as part of ZIP Archive can lead to unrestricted upload. This vulnerability is handled as CVE-2017-16941. The attack can be executed remotely. There is not any exploit available. The presence of this vulnerability remains uncertain at this time.

Detailsinfo

A vulnerability has been found in October CMS up to 1.0.428 (Content Management System) and classified as critical. This vulnerability affects an unknown part of the file .htaccess of the component Theme Handler. The manipulation as part of a ZIP Archive leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

** DISPUTED ** October CMS through 1.0.428 does not prevent use of .htaccess in themes, which 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. NOTE: the vendor says "I don't think [an attacker able to login to the system under an account that has access to manage/upload themes] is a threat model that we need to be considering."

The weakness was released 11/25/2017 (Website). The advisory is available at github.com. This vulnerability was named CVE-2017-16941 since 11/24/2017. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is necessary for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

The real existence of this vulnerability is still doubted at the moment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Content Management System

Vendor

• October

Name

• CMS

Version

• 1.0.428

License

• commercial

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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