CVE-2023-23119 (af-2x_firmware)

The use of the cyclic redundancy check (CRC) algorithm for integrity check during firmware update makes Ubiquiti airFiber AF2X Radio firmware version 3.2.2 and earlier vulnerable to firmware modification attacks. An attacker can conduct a man-in-the-middle (MITM) attack to modify the new firmware image and bypass the checksum verification.

algorithm attack attacks bypass check cve firmware firmware update integrity man-in-the-middle mitm modification radio redundancy ubiquiti update verification version vulnerable