Headline
Screen SFT DAB 600/C Unauthenticated Information Disclosure (userManager.cgx)
Screen is affected by an information disclosure vulnerability due to improper access control enforcement. An unauthenticated remote attacker can exploit this, via a specially crafted request to gain access to sensitive information including usernames and source IP addresses.
Title: Screen SFT DAB 600/C Unauthenticated Information Disclosure (userManager.cgx)
Advisory ID: ZSL-2023-5776
Type: Local/Remote
Impact: Spoofing, Exposure of System Information, Exposure of Sensitive Information
Risk: (3/5)
Release Date: 13.05.2023
Summary
Screen’s new radio DAB Transmitter is reaching the highest technology level in both Digital Signal Processing and RF domain. SFT DAB Series - Compact Radio DAB Transmitter - Air. Thanks to the digital adaptive precorrection and configuatio flexibility, the Hot Swap System technology, the compactness and the smart system design, the SFT DAB are advanced transmitters. They support standards DAB, DAB+ and T-DMB and are compatible with major headend brands.
Description
Screen is affected by an information disclosure vulnerability due to improper access control enforcement. An unauthenticated remote attacker can exploit this, via a specially crafted request to gain access to sensitive information including usernames and source IP addresses.
Vendor
DB Elettronica Telecomunicazioni SpA - https://www.screen.it | https://www.dbbroadcast.com
Affected Version
Firmware: 1.9.3
Bios firmware: 7.1 (Apr 19 2021)
Gui: 2.46
FPGA: 169.55
uc: 6.15
Tested On
Keil-EWEB/2.1
MontaVista® Linux® Carrier Grade eXpress (CGX)
Vendor Status
[19.03.2023] Vulnerability discovered.
[20.03.2023] Vendor contacted.
[12.05.2023] No response from the vendor.
[13.05.2023] Public security advisory released.
PoC
screen_info.py
Credits
Vulnerability discovered by Gjoko Krstic - <[email protected]>
References
N/A
Changelog
[13.05.2023] - Initial release
Contact
Zero Science Lab
Web: https://www.zeroscience.mk
e-mail: [email protected]