CVE-2023-37925 : What You Need to Know
Learn about CVE-2023-37925, an improper privilege management vulnerability in Zyxel firmware versions 4.32 through 5.37. Steps to mitigate and prevent unauthorized access to system files.
A privilege management vulnerability in Zyxel firmware could allow an attacker to access system files on affected devices.
Understanding CVE-2023-37925
This CVE refers to an improper privilege management vulnerability in various Zyxel firmware versions.
What is CVE-2023-37925?
The CVE-2023-37925 vulnerability involves an improper privilege management issue in the debug CLI command of multiple Zyxel firmware versions. Specifically, versions 4.32 through 5.37 for various Zyxel products are affected.
The Impact of CVE-2023-37925
Exploitation of this vulnerability could permit an authenticated local attacker to access system files on the targeted device. The severity of this issue is rated as medium with a CVSS base score of 5.5.
Technical Details of CVE-2023-37925
This section delves into the specific technical aspects of the vulnerability.
Vulnerability Description
The vulnerability arises from improper privilege management in the debug CLI command of Zyxel firmware versions. Affected firmware includes ATP series, USG FLEX series, USG FLEX 50(W) series, USG20(W)-VPN series, VPN series, NWA50AX, WAC500, WAX300H, and WBE660S.
Affected Systems and Versions
Zyxel firmware versions ranging from 4.32 to 5.37 across various product lines are impacted by this privilege management vulnerability.
Exploitation Mechanism
An authenticated local attacker can exploit this vulnerability to gain unauthorized access to system files on the vulnerable device.
Mitigation and Prevention
This section outlines the steps to mitigate and prevent exploitation of CVE-2023-37925.
Immediate Steps to Take
It is recommended to apply security patches or updates provided by Zyxel to address this vulnerability. System administrators should restrict access to potentially vulnerable devices.
Long-Term Security Practices
Incorporate regular security assessments and audits to proactively identify and address security vulnerabilities in your network infrastructure.
Patching and Updates
Stay informed about firmware updates and security advisories from Zyxel to promptly implement patches that mitigate the CVE-2023-37925 vulnerability.