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[email protected]CVE-2023-26244

HistoryApr 27, 2023 - 1:15 a.m.

CVE-2023-26244

2023-04-2701:15:08

CWE-269

[email protected]

web.nvd.nist.gov

cve-2023-26244

hyundai gen5w_l

in-vehicle infotainment system

firmware installation

digital signature

appupgrade

.lge.upgrade.xml

security vulnerability

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

An issue was discovered in the Hyundai Gen5W_L in-vehicle infotainment system AE_E_PE_EUR.S5W_L001.001.211214. The AppDMClient binary file, which is used during the firmware installation process, can be modified by an attacker to bypass the digital signature check of AppUpgrade and .lge.upgrade.xml files, which are used during the firmware installation process. This indirectly allows an attacker to use a custom version of AppUpgrade and .lge.upgrade.xml files.

Affected configurations

NVD

Node

hyundaigen5w_l_in-vehicle_infotainment_system_firmwareMatch5w.xxx.s5w_l.001.001.221129

hyundaigen5w_l_in-vehicle_infotainment_system_firmwareMatchae_e_pe_eur.s5w_l001.001.211214

AND

hyundaigen5w_l_in-vehicle_infotainment_systemMatch-

CPENameOperatorVersion
hyundai:gen5w_l_in-vehicle_infotainment_system_firmwarehyundai gen5w l in-vehicle infotainment system firmwareeq5w.xxx.s5w_l.001.001.221129
hyundai:gen5w_l_in-vehicle_infotainment_system_firmwarehyundai gen5w l in-vehicle infotainment system firmwareeqae_e_pe_eur.s5w_l001.001.211214

CPE	Name	Operator	Version
hyundai:gen5w_l_in-vehicle_infotainment_system_firmware	hyundai gen5w l in-vehicle infotainment system firmware	eq	5w.xxx.s5w_l.001.001.221129
hyundai:gen5w_l_in-vehicle_infotainment_system_firmware	hyundai gen5w l in-vehicle infotainment system firmware	eq	ae_e_pe_eur.s5w_l001.001.211214

References

sowhat.iit.cnr.it

sowhat.iit.cnr.it:8443/can-work/chimaera

sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-2023.pdf

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

Related for CVE-2023-26244

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