Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Paxtechnology | Paydroid | 7.1.2_aquarius_11.1.50_20230614 |
| Paxtechnology | A920 | - |
Related Weaknesses (CWE)
References
- https://blog.stmcyber.com/pax-pos-cves-2023/ExploitThird 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/developmentPermissions Required
- https://blog.stmcyber.com/pax-pos-cves-2023/ExploitThird 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/developmentPermissions Required
FAQ
What is CVE-2023-4818?
CVE-2023-4818 is a vulnerability with a CVSS score of 7.6 (HIGH). 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...
How severe is CVE-2023-4818?
CVE-2023-4818 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-4818?
Check the references section above for vendor advisories and patch information. Affected products include: Paxtechnology Paydroid, Paxtechnology A920.