Insufficient Session Expiration in NBG6604 - CVE-2021-35034
Published: January 3, 2022
Vulnerability identifier: #VU59130
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-35034
CWE-ID: CWE-613
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
NBG6604
NBG6604
Software vendor:
ZyXEL Communications Corp.
ZyXEL Communications Corp.
Description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient session expiration issue in the CGI program. A remote non-authenticated attacker can obtain or guess session token and gain unauthorized access to session that belongs to another user.
Remediation
Install updates from vendor's website.