CVE-2022-23134 is a low-severity vulnerability affecting the Zabbix Frontend, identified on January 13, 2022. This vulnerability allows unauthorized users to access certain setup steps meant for super-administrators. Attackers may exploit this flaw to manipulate configurations, leading to potential security risks within the Zabbix environment. The CVSS score for this vulnerability is 3.7, indicating a low level of severity.
Risk to organizations includes unauthorized configuration changes that can compromise the integrity of the Zabbix Frontend. Given that this vulnerability can be exploited without authentication, it is essential for organizations utilizing Zabbix to prioritize remediation efforts.
The vulnerability was added to the Known Exploited Vulnerabilities (KEV) catalog on February 22, 2022, highlighting its significance in the threat landscape. Organizations are urged to apply vendor updates promptly to mitigate the risks associated with this vulnerability.
Organizations should address this vulnerability in their patching cycle to safeguard their systems from potential exploitation.
Vulnerability Details
The vulnerability originates from a configuration oversight within the setup.php file of Zabbix, allowing unauthorized access. Officially described as an improper access control vulnerability, it affects versions of Zabbix ranging from 5.4.0 to 5.4.8, as well as several alpha and beta versions of 6.0. The vulnerability is classified under CWE-284 (Improper Access Control) and CWE-287 (Improper Authentication).
The CVSS score varies depending on the source: security@zabbix.com rates it as 3.7, while NVD assigns it a medium severity with a score of 5.3. This discrepancy is notable as it reflects differing interpretations of the attack complexity and potential impact.
Published on January 13, 2022, this vulnerability has been classified as analyzed and is critical for organizations utilizing the affected versions of Zabbix to address quickly.
Technical Analysis
The root cause of CVE-2022-23134 lies in the exposure of the setup.php file, which should only be accessible to super-administrators. The vulnerability can be exploited over the network, with high attack complexity, meaning that an attacker would need to understand the application's setup process to exploit it effectively. No privileges are required, nor is user interaction necessary, which heightens the risk of exploitation.
From a security perspective, the vulnerability has a low impact on confidentiality, as no data is exposed. However, it can lead to a low integrity impact, allowing attackers to modify configurations, which may subsequently lead to more severe vulnerabilities or misconfigurations.
Risk & Impact Analysis
The potential blast radius of this vulnerability is significant. Organizations that fail to remediate could face unauthorized changes to critical configurations within Zabbix, potentially leading to service disruptions or exploitation of additional vulnerabilities. The urgency of addressing this vulnerability is underscored by its inclusion in the KEV catalog.
Given the CVSS score and the recent addition to the KEV, organizations should prioritize patching immediately. The high EPSS score of 0.93096 further indicates a strong likelihood of exploitation in the wild, emphasizing the need for a proactive approach to vulnerability management.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected versions of Zabbix include all versions from 5.4.0 to 5.4.8, along with the alpha versions of 6.0.0 (alpha1 to alpha7) and the beta version 6.0.0 beta1. Additionally, Fedora 34 and 35, as well as Debian Linux 9.0, are also impacted.
Mitigation & Remediation
Organizations should apply updates as per vendor instructions to mitigate this vulnerability. If patching is not immediately possible, consider implementing network controls to restrict access to the setup.php file. Regular monitoring and configuration audits should also be conducted to ensure no unauthorized changes have occurred.
For further guidance on securing applications, organizations may consider engaging in application security assessments to identify potential vulnerabilities in their systems.
Detection Guidance
Monitoring logs for unauthorized access attempts, configuration changes, and behavioral anomalies can help detect potential exploitation of this vulnerability. Organizations should also look for unusual network traffic patterns that may suggest unauthorized access to the setup.php file.
AppSecure Threat Intelligence Insight
The significance of CVE-2022-23134 lies in its demonstration of improper access controls within widely used applications like Zabbix. This vulnerability highlights the importance of restricting access to critical configuration files and conducting regular security audits. Organizations should take this incident as a reminder to implement robust security practices.
For ongoing improvement in security posture, organizations can benefit from penetration testing services to identify vulnerabilities before they can be exploited.
Furthermore, organizations should stay informed about emerging threats and vulnerabilities by following industry best practices and engaging in penetration testing methodologies that provide comprehensive insights into securing applications.
Lastly, organizations are encouraged to review and update their incident response plans to effectively address potential exploitation scenarios, ensuring they are prepared for any security incidents that may arise.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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