ProcessMaker < 3.5.4 Authenticated Plugin Upload RCE
Vulnerability Description
An unrestricted file upload vulnerability exists in ProcessMaker versions prior to 3.5.4 due to improper handling of uploaded plugin archives. An attacker with administrative privileges can upload a malicious .tar plugin file containing arbitrary PHP code. Upon installation, the plugin’s install() method is invoked, resulting in execution of attacker-supplied PHP code on the server with the privileges of the web server user. This vulnerability can be chained with CVE-2022-38577 — a privilege escalation flaw in the user profile page — to achieve full remote code execution from a low-privileged account.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- bcoles
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/processmaker_plugin_upload.rb
- https://wiki.processmaker.net/3.0/Plugin_Development
- https://www.fortiguard.com/encyclopedia/ips/45757
- https://www.exploit-db.com/exploits/44399
- https://process-maker-authenticated-plugin-upload-rce
- https://vulncheck.com/advisories/process-maker-authenticated-plugin-upload-rce
Affected Vendor
ProcessMaker Inc.
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