CVE Vulnerabilities

CVE-2023-26245

Improper Privilege Management

Published: Apr 27, 2023 | Modified: May 08, 2023
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

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 version check in order to install any firmware version (e.g., newer, older, or customized). This indirectly allows an attacker to install custom firmware in the IVI system.

Weakness

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Affected Software

Name Vendor Start Version End Version
Gen5w_l_in-vehicle_infotainment_system_firmware Hyundai 5w.xxx.s5w_l.001.001.221129 5w.xxx.s5w_l.001.001.221129
Gen5w_l_in-vehicle_infotainment_system_firmware Hyundai ae_e_pe_eur.s5w_l001.001.211214 ae_e_pe_eur.s5w_l001.001.211214

Potential Mitigations

References