CVE-2023-26243
Last modified
CVE-2023-26243 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.35% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hyundai | Gen5w L Firmware | ae_e_pe_eur.s5w_l001.001.211214 |
References
- https://sowhat.iit.cnr.itNot Applicable
- https://sowhat.iit.cnr.it:8443/can-work/chimaeraExploit, Third Party Advisory
- https://sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-2023.pdfExploit, Third Party Advisory
- https://sowhat.iit.cnr.itNot Applicable
- https://sowhat.iit.cnr.it:8443/can-work/chimaeraExploit, Third Party Advisory
- https://sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-2023.pdfExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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