Credentials management in ZyXEL Communications Corp. products - CVE-2021-35033
Published: November 24, 2021
Vulnerability identifier: #VU58335
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-35033
CWE-ID: CWE-255
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: ZyXEL Communications Corp.
Affected software:
NBG6818
NBG7815
WSQ20
WSQ50
WSQ60
WSR30
NBG6818
NBG7815
WSQ20
WSQ50
WSQ60
WSR30
Detailed vulnerability description
The vulnerability allows a local user can compromise the target system.
The vulnerability exists due to improper password management. A local user can dismantle and take the device, connect to it using a USB-to-UART cable and gain root access.
How to mitigate CVE-2021-35033
Install updates from vendor's website.