Executive Summary

Informations
Name CVE-2023-26243 First vendor Publication 2023-04-27
Vendor Cve Last vendor Modification 2023-05-08

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-26243

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-668 Exposure of Resource to Wrong Sphere

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 2

Sources (Detail)

Source Url
MISC https://sowhat.iit.cnr.it
https://sowhat.iit.cnr.it:8443/can-work/chimaera
https://sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-20...

Alert History

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Date Informations
2023-05-08 21:27:20
  • Multiple Updates
2023-04-28 02:17:48
  • Multiple Updates
2023-04-28 02:17:30
  • Multiple Updates
2023-04-27 17:27:26
  • Multiple Updates
2023-04-27 09:27:17
  • First insertion