Firmware Downgrade/Upgrade Vulnerability in NCR S1 Dispenser Controller

CVE-2017-17668 · HIGH Severity

AV:N/AC:L/AU:N/C:N/I:C/A:N

Memory write mechanism in NCR S1 Dispenser controller before firmware version 0x0156 allows an unauthenticated user to upgrade or downgrade the firmware of the device, including to older versions with known vulnerabilities.

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