Description
An issue was discovered in the Hyundai Gen5W_L in-vehicle infotainment system AE_E_PE_EUR.S5W_L001.001.211214. The AppUpgrade binary file, which is used during the firmware installation process, can be modified by an attacker to bypass the digital signature check. This indirectly allows an attacker to install custom firmware in the IVI system.
References (3)
Core 3
Core References
Not Applicable
https://sowhat.iit.cnr.it
Exploit, Third Party Advisory
https://sowhat.iit.cnr.it:8443/can-work/chimaera
Exploit, Third Party Advisory
https://sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-2023.pdf
Scores
CVSS v3
7.8
EPSS
0.0033
EPSS Percentile
24.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-269
CWE-863
Status
published
Products (3)
hyundai/gen5w_l_firmware
ae_e_pe_eur.s5w_l001.001.211214
hyundai/gen5w_l_in-vehicle_infotainment_system_firmware
5w.xxx.s5w_l.001.001.221129
hyundai/gen5w_l_in-vehicle_infotainment_system_firmware
ae_e_pe_eur.s5w_l001.001.211214
Published
Apr 27, 2023
Tracked Since
Feb 18, 2026