Privilege escalation via passwordless devmem execution

Incorrect privilege assignment in Infinera GX G42 6.1.3 allows local users to read and write physical memory through devmem. The appliance sudoers configuration permits low-privileged OS accounts to execute devmem as superuser without a password and specify arbitrary physical addresses. An existing low-privilege account is required; memory reads disclose sensitive data, while writes can alter kernel memory, elevate privileges, or interrupt service.