Title: TELSAT marKoni FM Transmitter 1.9.5 Client-Side Access Control Bypass
Advisory ID: ZSL-2024-5810
Type: Local/Remote
Impact: Security Bypass
Risk: (4/5)
Release Date: 31.01.2024

Summary

Professional FM transmitters.

Description

The application implements client-side restrictions that can be bypassed by editing the HTML source page that enable administrative operations.

Vendor

TELSAT Srl - https://www.markoni.it

Affected Version

Markoni-D (Compact) FM Transmitters
Markoni-DH (Exciter+Amplifiers) FM Transmitters
Markoni-A (Analogue Modulator) FM Transmitters
Firmware: 1.9.5
1.9.3
1.5.9
1.4.6
1.3.9

Tested On

GNU/Linux 3.10.53 (armv7l)
icorem6solox
lighttpd/1.4.33

Vendor Status

[10.11.2023] Vulnerability discovered.
[21.11.2023] Contact with the vendor.
[22.11.2023] No response from the vendor.
[19.01.2024] Contact with the vendor.
[29.01.2024] No response from the vendor.
[31.01.2024] Public security advisory released.

PoC

markoni_acbypass.txt

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] https://packetstormsecurity.com/files/176935/

Changelog

[31.01.2024] - Initial release
[01.02.2024] - Added reference [1]

Contact

Zero Science Lab

Web: https://www.zeroscience.mk
e-mail: lab@zeroscience.mk