SB2019121127 - Multiple vulnerabilities in Squiz Matrix CMS
Published: December 11, 2019 Updated: December 20, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Deserialization of Untrusted Data (CVE-ID: CVE-2019-19373)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data passed via the "page_remote_content_[pageid]_sq_remote_input_file_names" POST parameter in "packages/cms/page_templates/page_remote_content/page_remote_content.inc". A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Input validation error (CVE-ID: CVE-2019-19374)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied input in "core/assets/form/form_question_types/form_question_type_file_upload/form_question_type_file_upload.inc". A remote attacker can delete arbitrary files from the server during interaction with the File Upload field type, when a custom form exists.
Note: This is related to an information disclosure issue within the File Upload field type that allows attackers to view the full path to uploaded files, including the product's web root directory.
Remediation
Install update from vendor's website.
References
- http://packetstormsecurity.com/files/155671/Squiz-Matrix-CMS-5.5.x.x-Code-Execution-Information-Disclosure.html
- http://seclists.org/fulldisclosure/2019/Dec/34
- https://matrix.squiz.net/releases/5.5/5.5.3.3
- https://zxsecurity.co.nz/wp-content/uploads/2019/12/ZX%20Security%20Advisory%20-%20Squiz%20Matrix%20CMS%20-%20Multiple%20Vulnerabilities.pdf