SB2022010307 - Multiple vulnerabilities in Zyxel NBG6604

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Main Vulnerability Database SB2022010307

SB2022010307 - Multiple vulnerabilities in Zyxel NBG6604

Published: January 3, 2022

Security Bulletin ID SB2022010307
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Insufficient Session Expiration (CVE-ID: CVE-2021-35034)

CWE-ID: CWE-613 - Insufficient Session Expiration

CVSSv4: 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


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.


2) Cleartext storage of sensitive information (CVE-ID: CVE-2021-35035)

CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the storage of sensitive information in plain-text within the configuration file. A remote authenticated attacker can retrieve sensitive information stored in cleartext.


Remediation

Install update from vendor's website.

References