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Security Vulnerability Report for Zabbix Container (PHP)

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  • DanielZhang
    Junior Member
    • Dec 2022
    • 5

    #1

    Security Vulnerability Report for Zabbix Container (PHP)

    Here is a sample security vulnerability report for PHP-related issues identified in a Zabbix container. The report focuses on the specific CVEs identified in the scan.

    Dear Support Team,

    I am reaching out to inquire if it would be possible to upgrade the PHP version in the official Zabbix container image to a higher, more secure version. Recent security scans have identified several high-severity vulnerabilities related to PHP, including remote code execution and memory corruption issues, which pose significant risks to our deployments. These vulnerabilities are associated with the following CVEs:
    • CVE-2022-31627
    • CVE-2023-3824
    • CVE-2024-5585
    • CVE-2022-31626
    • CVE-2023-0568
    • CVE-2022-31625

    Each time a new vulnerability is discovered, I am required to manually upgrade PHP within the container and repackage the image. This process can be time-consuming and may result in inconsistencies across deployments. An official upgrade in the Zabbix container image would greatly streamline security maintenance and help ensure consistent protection across environments.

    Could you please let us know if there are any plans to update the PHP version in the official container image to address these issues? Alternatively, if there is a recommended process for maintaining the latest secure version of PHP within the Zabbix container, I would appreciate any guidance you could provide.


    Security Vulnerability Report for Zabbix Container (PHP)


    This document outlines the security vulnerabilities identified in the PHP environment of a Zabbix container. The vulnerabilities, rated as high risk, were detected during a recent scan and are associated with different PHP versions used in the container. These vulnerabilities may expose the container to remote code execution, memory corruption, and denial of service attacks if left unpatched. Affected Component: PHP


    The following PHP vulnerabilities were identified: 1. PHP Security Vulnerability (CVE-2022-31627)
    • Severity: High
    • Description: This vulnerability allows remote attackers to execute arbitrary commands due to insufficient input validation in certain PHP functions.
    • Impact: Successful exploitation can lead to unauthorized code execution, potentially allowing attackers to compromise the container or escalate privileges.
    • Mitigation: Update PHP to a version that addresses this vulnerability, or apply configuration restrictions to limit access to vulnerable endpoints.
    2. PHP Heap Buffer Overflow Vulnerability (CVE-2023-3824)
    • Severity: High
    • Description: A heap buffer overflow in PHP could allow an attacker to exploit memory corruption, potentially leading to arbitrary code execution.
    • Impact: This vulnerability poses a risk of memory corruption and could allow attackers to gain control of the affected PHP process.
    • Mitigation: Upgrade PHP to the latest stable version or apply available patches for this vulnerability.
    3. PHP Security Vulnerability (CVE-2024-5585)
    • Severity: High
    • Description: This vulnerability, newly identified in 2024, impacts PHP’s memory handling and could be used to compromise the stability of the PHP process.
    • Impact: The vulnerability could be exploited for unauthorized access or denial of service attacks.
    • Mitigation: Ensure PHP is updated to the latest secure release to patch this issue.
    4. PHP Remote Command Execution Vulnerability (CVE-2022-31626)
    • Severity: High
    • Description: This vulnerability enables remote command execution via PHP functions that are not sufficiently sanitized, exposing the server to malicious inputs.
    • Impact: An attacker could leverage this flaw to execute arbitrary commands on the server.
    • Mitigation: Update to a secure version of PHP and consider additional hardening measures such as restricting access to sensitive functions.
    5. PHP Security Vulnerability (CVE-2023-0568)
    • Severity: High
    • Description: A general security vulnerability in PHP that could lead to unauthorized access and code execution under certain conditions.
    • Impact: Exploitation of this vulnerability could allow attackers to perform privilege escalation or execute malicious code within the container.
    • Mitigation: Apply the latest security patches available for PHP.
    6. PHP Remote Command Execution Vulnerability (CVE-2022-31625)
    • Severity: High
    • Description: This vulnerability affects certain PHP functions, allowing remote command execution if exploited successfully.
    • Impact: If exploited, it could lead to unauthorized control over the affected system, posing a risk to the container’s integrity.
    • Mitigation: Update PHP and restrict access to functions that could be exploited through this vulnerability.
    Recommendations


    To mitigate the risks associated with these PHP vulnerabilities, the following steps should be considered:
    1. Upgrade PHP: Ensure that PHP is updated to the latest stable and secure version where these vulnerabilities are patched.
    2. Container Hardening: Consider additional security measures, such as limiting the exposure of sensitive endpoints and reducing container privileges.
    3. Regular Security Scans: Schedule regular vulnerability scans to monitor for new vulnerabilities and patches.
    4. Access Control: Limit access to PHP-sensitive functions and endpoints to authorized users only.
    5. Consider Dependency Management: Monitor and update PHP dependencies and libraries within the container to avoid indirect vulnerabilities.
    Conclusion


    The identified vulnerabilities present significant security risks if left unaddressed. Immediate remediation steps, such as updating PHP and applying configuration changes, are recommended to ensure the security of the Zabbix container environment.
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