Wp-Insert Plugin up to 2.4.2 on WordPress browser.html unrestricted upload

Summaryinfo

A vulnerability labeled as critical has been found in Wp-Insert Plugin up to 2.4.2 on WordPress. This issue affects some unknown processing of the file fckeditor/editor/filemanager/browser/default/browser.html. Such manipulation leads to unrestricted upload. This vulnerability is listed as CVE-2018-17573. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Wp-Insert Plugin up to 2.4.2 on WordPress (WordPress Plugin). It has been rated as critical. Affected by this issue is an unknown part of the file fckeditor/editor/filemanager/browser/default/browser.html. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The Wp-Insert plugin through 2.4.2 for WordPress allows upload of arbitrary PHP code because of the exposure and configuration of FCKeditor under fckeditor/editor/filemanager/browser/default/browser.html, fckeditor/editor/filemanager/connectors/test.html, and fckeditor/editor/filemanager/connectors/uploadtest.html.

The bug was discovered 09/27/2018. The weakness was presented 09/28/2018 (Website). The advisory is shared for download at cxsecurity.com. This vulnerability is handled as CVE-2018-17573 since 09/28/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1608.002.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:fckeditor/editor/filemanager/browser/default/browser.html it is possible to find vulnerable targets with Google Hacking.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• WordPress Plugin

Name

• Wp-Insert Plugin

Version

• 2.4.0
• 2.4.1
• 2.4.2

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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