CVE-2012-1077 in Bc Post2facebook
Summary
by MITRE
SQL injection vulnerability in the Post data records to facebook (bc_post2facebook) extension before 0.2.2 for TYPO3 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.
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Analysis
by VulDB Data Team • 01/30/2018
The CVE-2012-1077 vulnerability represents a critical SQL injection flaw within the bc_post2facebook extension for TYPO3 content management systems. This vulnerability specifically affects versions prior to 0.2.2 and exposes the system to remote code execution through malicious SQL commands. The issue stems from inadequate input validation and sanitization within the extension's data handling mechanisms, creating a pathway for attackers to manipulate database queries through crafted inputs. The vulnerability is particularly dangerous because it allows remote attackers to execute arbitrary SQL commands without requiring authentication or privileged access to the system.
The technical flaw manifests in the extension's failure to properly sanitize user-supplied data before incorporating it into database queries. When the bc_post2facebook extension processes post data intended for Facebook integration, it fails to implement proper parameterized queries or input filtering mechanisms. This creates a classic SQL injection vector where malicious actors can inject crafted SQL payloads through unspecified input fields within the extension's interface. The vulnerability operates at the application layer and can be exploited through various attack vectors including form submissions, URL parameters, or API calls that interact with the affected extension's functionality. The lack of proper input validation means that database queries are constructed using user-controllable data without appropriate sanitization, allowing attackers to manipulate the intended query structure.
The operational impact of this vulnerability is severe and multifaceted. Remote attackers can leverage this vulnerability to gain unauthorized access to the underlying database, potentially leading to data theft, modification, or deletion of critical information. The attacker could extract sensitive user data, including credentials, personal information, and system configurations that are stored within the TYPO3 database. Additionally, the vulnerability could enable attackers to escalate privileges within the system, potentially gaining administrative control over the entire TYPO3 installation. The implications extend beyond immediate data compromise, as attackers might use the database access to install backdoors, modify website content, or establish persistent access to the compromised system. The vulnerability also poses a risk to the broader network infrastructure if the TYPO3 system serves as a gateway to other internal systems.
Mitigation strategies for CVE-2012-1077 require immediate action to address the root cause through proper input validation and database query sanitization. Organizations should upgrade to version 0.2.2 or later of the bc_post2facebook extension, which implements proper parameterized queries and input sanitization. Security measures should include implementing web application firewalls that can detect and block SQL injection attempts, enforcing strict input validation at all entry points, and conducting regular security audits of third-party extensions. The vulnerability aligns with CWE-89 which specifically addresses SQL injection flaws in software applications, and represents a common attack pattern categorized under ATT&CK technique T1190 for exploit public-facing applications. Additional protective measures include implementing database user permissions that limit the privileges of application accounts, regular monitoring of database logs for suspicious activity, and maintaining up-to-date security patches for all TYPO3 components and extensions. Organizations should also implement proper access controls and regularly review extension configurations to ensure that only necessary functionality is enabled.