CVE-2023-24064

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-08-08 · updated 2026-06-17

Description

Diebold Nixdorf Vynamic Security Suite (VSS) before 3.3.0 SR4 fails to validate /etc/initab during the Pre-Boot Authorization (PBA) process. This can be exploited by a physical attacker who is able to manipulate the contents of the system's hard disk.

Affected products

Dieboldnixdorf Vynamic Security Suite: before 3.3.0sr4 — fixed in 3.3.0sr4

How to fix

Upgrade to a fixed version: Dieboldnixdorf Vynamic Security Suite 3.3.0sr4. Check the vendor advisory for mitigations.

References

https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Matt%20Burch%20-%20Where%E2%80%99s%20the%20Money%20-%20Defeating%20ATM%20Disk%20Encryption-white%20paper.pdf
https://www.dieboldnixdorf.com/en-us/banking/portfolio/software/security/

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