CVE-2021-35027 : Vulnerability Insights and Analysis
Learn about CVE-2021-35027, a high-severity directory traversal vulnerability in Zyxel's ZyWALL VPN2S Firmware version 1.12, allowing remote attackers to access sensitive information. Find mitigation steps and preventive measures here.
A directory traversal vulnerability in the web server of the Zyxel VPN2S firmware version 1.12 could allow a remote attacker to gain access to sensitive information.
Understanding CVE-2021-35027
This CVE describes a directory traversal vulnerability in the Zyxel VPN2S firmware version 1.12, posing a risk of unauthorized access to sensitive data.
What is CVE-2021-35027?
CVE-2021-35027 is a security flaw in Zyxel's ZyWALL VPN2S Firmware version 1.12, enabling a malicious actor to exploit the web server and retrieve confidential information.
The Impact of CVE-2021-35027
With a CVSS base score of 7.5, this high-severity vulnerability can lead to potential data breaches and compromise the confidentiality of sensitive information stored within affected systems.
Technical Details of CVE-2021-35027
The technical details of CVE-2021-35027 provide further insight into the nature of the vulnerability and its implications.
Vulnerability Description
A directory traversal flaw in the Zyxel VPN2S firmware version 1.12 allows remote attackers to navigate through directories and access restricted files, potentially leading to unauthorized data disclosure.
Affected Systems and Versions
Zyxel's ZyWALL VPN2S Firmware version 1.12 (ABLN.0)C0 is affected by this vulnerability, emphasizing the importance of updating to a secure version.
Exploitation Mechanism
Exploiting this vulnerability requires minimal attack complexity and no privileged user interaction, making it a lucrative target for threat actors seeking unauthorized access.
Mitigation and Prevention
To address CVE-2021-35027, immediate steps should be taken to mitigate the risks and prevent any potential exploitation.
Immediate Steps to Take
Users are advised to update the affected ZyWALL VPN2S Firmware to a patched version released by Zyxel to eliminate the vulnerability and enhance the security of their systems.
Long-Term Security Practices
Implementing robust security measures, such as network segmentation, access controls, and regular security updates, can fortify systems against similar vulnerabilities in the future.
Patching and Updates
Regularly installing security patches provided by Zyxel and staying informed about security advisories are crucial to maintaining a secure network environment.