CVE-2023-4818

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-4818
PAX A920 device allows to downgrade bootloader due to a bug in its version check. The signature is correctly checked and only bootloader signed by PAX can be used.  The attacker must have physical USB access to the device in order to exploit this vulnerability.

7.6 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 0.9 / Impact : 6.0

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://blog.stmcyber.com/pax-pos-cves-2023/ Exploit Third Party Advisory
https://cert.pl/en/posts/2024/01/CVE-2023-4818/ Third Party Advisory
https://cert.pl/posts/2024/01/CVE-2023-4818/ Third Party Advisory
https://ppn.paxengine.com/release/development Permissions Required
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:paxtechnology:paydroid:7.1.2_aquarius_11.1.50_20230614:*:*:*:*:*:*:*
cpe:2.3:h:paxtechnology:a920:-:*:*:*:*:*:*:*
History

19 Jan 2024, 16:35

Type Values Removed Values Added
First Time Paxtechnology
Paxtechnology paydroid
Paxtechnology a920
CWE CWE-74
CPE cpe:2.3:o:paxtechnology:paydroid:7.1.2_aquarius_11.1.50_20230614:*:*:*:*:*:*:*
cpe:2.3:h:paxtechnology:a920:-:*:*:*:*:*:*:*
References () https://blog.stmcyber.com/pax-pos-cves-2023/ - () https://blog.stmcyber.com/pax-pos-cves-2023/ - Exploit, Third Party Advisory
References () https://cert.pl/en/posts/2024/01/CVE-2023-4818/ - () https://cert.pl/en/posts/2024/01/CVE-2023-4818/ - Third Party Advisory
References () https://cert.pl/posts/2024/01/CVE-2023-4818/ - () https://cert.pl/posts/2024/01/CVE-2023-4818/ - Third Party Advisory
References () https://ppn.paxengine.com/release/development - () https://ppn.paxengine.com/release/development - Permissions Required
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.6

16 Jan 2024, 13:56

Type Values Removed Values Added
Summary
  • (es) El dispositivo PAX A920 permite degradar el gestor de arranque debido a un error en la verificación de versión. La firma está correctamente comprobada y sólo se puede utilizar el gestor de arranque firmado por PAX. El atacante debe tener acceso USB físico al dispositivo para poder aprovechar esta vulnerabilidad.

15 Jan 2024, 14:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-01-15 14:15

Updated : 2024-01-19 16:35

NVD link : CVE-2023-4818

Mitre link : CVE-2023-4818

CVE.ORG link : CVE-2023-4818

JSON object : View

Products Affected

paxtechnology

  • paydroid
  • a920
CWE
CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-20

Improper Input Validation