PT-2023-20561 · Hyundai · Hyundai Gen5W L

Published 2023-04-27 · Updated 2025-01-31 · CVE-2023-26246

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base 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 where the AppUpgrade binary file can be modified by an attacker to bypass the digital signature check. This allows an attacker to install custom firmware in the IVI system.

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 AppUpgrade binary file until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Incorrect Authorization

Improper Privilege Management

Weakness Enumeration

CWE-863

CWE-269

Related Identifiers

CVE-2023-26246

Affected Products

Hyundai Gen5W L

References · 6

• 🔥 https://sowhat.iit.cnr.it:8443/can-work/chimaera · Exploit
• 🔥 https://sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-2023.pdf · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-26246 · Security Note
• https://osv.dev/vulnerability/CVE-2023-26246 · Vendor Advisory
• https://sowhat.iit.cnr.it · Note
• https://t.me/cvenotify/109517 · Telegram Post