Insecure Permissions Allow Unauthorized User Privilege Escalation in Zyxel VMG5313-B30B Router
CVE-2020-24355 · CRITICAL Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Zyxel VMG5313-B30B router on firmware 5.13(ABCJ.6)b3_1127, and possibly older versions of firmware are affected by insecure permissions which allows regular and other users to create new users with elevated privileges. This is done by changing "FirstIndex" field in JSON that is POST-ed during account creation. Similar may also be possible with account deletion.
Learn more about our User Device Pen Test.