CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
43.8%
Title: Sielco PolyEco Digital FM Transmitter 2.0.6 Default Credentials
Advisory ID: ZSL-2023-5764
Type: Local/Remote
Impact: System Access, Exposure of System Information, Exposure of Sensitive Information
Risk: (4/5)
Release Date: 10.04.2023
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.
The FM transmitter uses a weak set of default administrative credentials that can be easily guessed in remote password attacks and gain full control of the system.
Sielco S.r.l - <https://www.sielco.org>
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
lwIP/2.1.1 (http://savannah.nongnu.org/projects/lwip)
[26.01.2023] Vulnerability discovered.
[27.01.2023] Contact with the vendor and CSIRT Italia.
[09.04.2023] No response from the vendor.
[09.04.2023] No response from the CSIRT team.
[10.04.2023] Public security advisory released.
Vulnerability discovered by Gjoko Krstic - <[email protected]>
[1] <https://packetstormsecurity.com/files/171865/>
[2] <https://exchange.xforce.ibmcloud.com/vulnerabilities/253061>
[3] <https://exchange.xforce.ibmcloud.com/vulnerabilities/269698>
[4] <https://nvd.nist.gov/vuln/detail/CVE-2023-5754>
[5] <https://vulners.com/cve/CVE-2023-5754>
[10.04.2023] - Initial release
[03.11.2023] - Added reference [1], [2], [3], [4] and [5]
Zero Science Lab
Web: <https://www.zeroscience.mk>
e-mail: [email protected]
<html><body><p>Sielco PolyEco Digital FM Transmitter 2.0.6 Default Credentials
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: The FM transmitter uses a weak set of default administrative
credentials that can be easily guessed in remote password attacks
and gain full control of the system.
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-2023-5764
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5764.php
26.01.2023
--
User role:
----------
Username: user
Password: 1234
Admin role:
-----------
Username: admin
Password: sielco1
</p></body></html>