PT-2023-20558 · Hyundai · Hyundai Gen5W L
Published
2023-04-27
·
Updated
2025-01-31
·
CVE-2023-26243
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Hyundai Gen5W L in-vehicle infotainment system version AE E PE EUR.S5W L001.001.211214
Description
An issue was discovered in the Hyundai Gen5W L in-vehicle infotainment system. The decryption binary used to decrypt firmware files has an information leak that allows an attacker to read the
AES key and initialization vector from memory. An attacker may exploit this to create custom firmware that may be installed in the IVI system. Then, an attacker may be able to install a backdoor in the IVI system that may allow him to control it, if it is connected to the Internet through Wi-Fi.Recommendations
For Hyundai Gen5W L in-vehicle infotainment system version AE E PE EUR.S5W L001.001.211214, as a temporary workaround, consider restricting access to the decryption binary until a patch is available. Additionally, restrict Internet connectivity through Wi-Fi to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Exposure of Resource to Wrong Sphere
Path traversal
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Related Identifiers
Affected Products
Hyundai Gen5W L