Executive Summary

The Joomla! Component Sponsor Wall version 8.0 contains an SQL injection vulnerability. This flaw allows unauthenticated attackers to inject malicious SQL code through the 'wallid' parameter in a GET request to index.php with specific parameters (option=com_sponsorwall&task=click). By exploiting this vulnerability, attackers can execute arbitrary SQL queries on the database.

Successful exploitation enables attackers to extract sensitive information from the database, including credentials and configuration data, without needing any authentication.

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Impact Analysis

This vulnerability can have significant impacts including unauthorized access to sensitive database information such as credentials and configuration data. Attackers can exploit the flaw to retrieve confidential data, which may lead to further compromise of the affected system.

Because the vulnerability allows execution of arbitrary SQL commands without authentication, it poses a high risk to the confidentiality of the data stored in the Joomla! Sponsor Wall component's database.

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Detection Guidance

This vulnerability can be detected by monitoring HTTP GET requests to the Joomla! site for suspicious or malformed input in the 'wallid' parameter within URLs containing option=com_sponsorwall and task=click.

A practical detection method is to look for SQL injection payloads in the 'wallid' parameter in web server logs or by using network traffic inspection tools.

• Use command-line tools like grep to search web server logs for suspicious requests, for example: grep "option=com_sponsorwall&task=click" /var/log/apache2/access.log | grep "wallid="
• Use curl or wget to test the endpoint manually with SQL injection payloads, e.g.: curl "http://yourjoomlasite/index.php?option=com_sponsorwall&task=click&wallid=1' OR '1'='1"
• Employ web vulnerability scanners that support SQL injection detection targeting the 'wallid' parameter in the Sponsor Wall component.

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Mitigation Strategies

Immediate mitigation steps include restricting or blocking access to the vulnerable Sponsor Wall component, especially the URL paths involving option=com_sponsorwall and task=click.

Apply input validation and sanitization on the 'wallid' parameter to prevent SQL injection if you have control over the code.

Update the Sponsor Wall Joomla extension to a patched or newer version that addresses this vulnerability, if available.

If no patch is available, consider disabling or uninstalling the Sponsor Wall component until a fix is released.

Monitor logs for suspicious activity and consider implementing Web Application Firewall (WAF) rules to block malicious SQL injection attempts targeting this parameter.

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Compliance Impact

The SQL injection vulnerability in Joomla! Component Sponsor Wall 8.0 allows attackers to extract sensitive database information, including credentials and configuration data. This unauthorized access to sensitive data can lead to violations of data protection regulations such as GDPR and HIPAA, which require the protection of personal and sensitive information from unauthorized access or disclosure.

By enabling attackers to retrieve confidential information, this vulnerability undermines the confidentiality and integrity principles mandated by these standards, potentially resulting in non-compliance and associated legal or financial penalties.

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