Team82 has uncovered the use of a weak random number generator in Synology’s DiskStation Manager (DSM) Linux-based operating system running on the company’s network-attached storage (NAS) products
The insecure Math.random() method was used to generate the password of the admin password for the NAS device itself.
Under some rare conditions, an attacker could leak enough information to restore the seed of the pseudorandom number generator (PRNG), reconstruct the admin password, and remotely take over the admin account.
The vulnerability, tracked as CVE-2023-2729, has been addressed by Synology. Synology’s advisory is here.
