SQL injection vulnerability in the Wir ber uns [sic] (fsmi_people) extension 0.0.24 and earlier for TYPO3 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.
A critical SQL injection vulnerability exists in the fsmi_people extension for TYPO3, allowing attackers to execute arbitrary SQL commands and potentially gain complete control of the affected web server. This vulnerability, present in versions 0.0.24 and earlier, poses a significant risk of data breaches, system compromise, and denial of service.
Step 1: Identify Target: The attacker identifies a TYPO3 website using the fsmi_people extension (version 0.0.24 or earlier).
Step 2: Craft Malicious Payload: The attacker crafts a malicious SQL injection payload designed to achieve a specific goal, such as retrieving sensitive data, modifying data, or executing arbitrary commands on the database server.
Step 3: Payload Delivery: The attacker submits the crafted payload through a vulnerable input field, likely related to user input or data filtering within the extension. The exact input vector is unspecified in the CVE, but it is likely related to how the extension handles user-submitted data.
Step 4: Query Execution: The vulnerable code within the fsmi_people extension receives the malicious payload and incorporates it into a dynamically constructed SQL query.
Step 5: Database Interaction: The database server executes the injected SQL query, treating the attacker's input as legitimate SQL code.
Step 6: Resultant Action: The attacker's malicious SQL commands are executed, leading to the desired outcome, such as data exfiltration, modification, or system compromise.
The root cause of CVE-2008-5800 lies in the lack of proper input validation and sanitization within the fsmi_people extension's code. Specifically, the extension likely constructs SQL queries dynamically based on user-supplied input without adequately filtering or escaping special characters. This allows an attacker to inject malicious SQL code into the query, which is then executed by the database server. The vulnerability stems from a failure to implement parameterized queries or other secure coding practices to prevent SQL injection. The specific function or code block responsible for processing user input and constructing the SQL query is the point of failure.