CVE-2023-26243 Information disclosure in n/a

High 7.8 Published Updated

An attacker can extract AES keys from memory to create and install malicious firmware on the Hyundai IVI system, potentially gaining remote control.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-26243?

CVE-2023-26243 is a high-severity vulnerability in n/a, published on 27 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in the Hyundai Gen5W_L in-vehicle infotainment system AE_E_PE_EUR.S5W_L001.001.211214. 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.

Weakness: CWE-269, CWE-22

Which versions are affected by CVE-2023-26243?

It affects 1 product.

Products include Hyundai Gen5w L Firmware.

How do I fix CVE-2023-26243?

No fix has been published for CVE-2023-26243 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-26243 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26243 exists.

Sources

Also known as GHSA-68w8-q32v-4g44.

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