CVE-2023-26034 : Exploit Details and Defense Strategies

This CVE details a critical security vulnerability in ZoneMinder software, specifically related to SQL Injection.

Understanding CVE-2023-26034

ZoneMinder, a popular open-source CCTV software for Linux, is impacted by a SQL Injection vulnerability. This vulnerability can have severe consequences on the security and integrity of affected systems.

What is CVE-2023-26034?

The CVE-2023-26034 vulnerability affects versions of ZoneMinder software prior to 1.36.33 and 1.37.33. It involves a blind SQL Injection vulnerability within the

filter[Query][terms][0][attr]

query string parameter of the

/zm/index.php

endpoint. An attacker with View or Edit permissions of Events can exploit this vulnerability to execute arbitrary SQL queries, potentially leading to unauthorized data access, modification, authentication bypass, authorization bypass, and even remote code execution.

The Impact of CVE-2023-26034

The impact of CVE-2023-26034 is deemed critical. With a base severity score of 9.6, it poses high risks to confidentiality and integrity, with low privileges required for exploitation. The attack vector is through the network with low attack complexity.

Technical Details of CVE-2023-26034

This section delves into the specifics of the vulnerability, affected systems, and how it can be exploited.

Vulnerability Description

The SQL Injection vulnerability arises in ZoneMinder's handling of the

filter[Query][terms][0][attr]

query string parameter within the

/zm/index.php

endpoint. This flaw enables unauthorized SQL execution by users with specific permissions, leading to severe security implications.

Affected Systems and Versions

ZoneMinder versions below 1.36.33 and 1.37.33 are impacted. Users utilizing versions within this range are susceptible to the SQL Injection vulnerability and should take immediate action to mitigate the risk.

Exploitation Mechanism

By manipulating the

filter[Query][terms][0][attr]

parameter, malicious actors can inject SQL queries into the system, gaining unauthorized access, modifying data, bypassing authentication and authorization controls, and potentially achieving remote code execution.

Mitigation and Prevention

To safeguard systems against CVE-2023-26034 and similar threats, proactive measures must be taken promptly.

Immediate Steps to Take

Upgrade to a patched version of ZoneMinder (1.36.33 or 1.37.33 onwards).
Apply security updates provided by the vendor promptly.
Restrict access to vulnerable endpoints and tighten user permissions.
Perform security assessments and audits to detect and remediate vulnerabilities.

Long-Term Security Practices

Enforce secure coding practices within the development process.
Implement regular security training for personnel to enhance awareness.
Continuously monitor and evaluate system logs for suspicious activities.
Employ firewalls, intrusion detection systems, and other security measures to bolster defenses.

Patching and Updates

Regularly check for security advisories and patches released by ZoneMinder to address security vulnerabilities promptly. Keeping software up to date is crucial in mitigating potential risks and ensuring a secure environment.