CVE-2011-5139 in Business Cards Designer
Summary
by MITRE
SQL injection vulnerability in page.php in Pre Studio Business Cards Designer allows remote attackers to execute arbitrary SQL commands via the id parameter.
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Analysis
by VulDB Data Team • 06/23/2024
The vulnerability identified as CVE-2011-5139 represents a critical sql injection flaw within the Pre Studio Business Cards Designer application's page.php script. This vulnerability specifically targets the id parameter, which serves as an entry point for malicious actors to inject arbitrary sql commands into the application's database layer. The flaw exists due to insufficient input validation and sanitization mechanisms that fail to properly escape or filter user-supplied data before incorporating it into sql query constructions. Attackers can exploit this weakness by crafting malicious payloads that manipulate the sql query structure, potentially gaining unauthorized access to sensitive data, modifying database records, or even executing administrative operations on the underlying database system.
The technical implementation of this vulnerability falls under the common weakness enumeration CWE-89, which specifically addresses sql injection vulnerabilities where untrusted data is directly incorporated into sql commands without proper sanitization. The vulnerability operates at the application layer where user input flows directly into database operations, creating an attack surface that aligns with the attack technique described in the attack tree framework under ATT&CK tactic TA0006 (credential access) and TA0002 (execution). The id parameter in page.php serves as the primary vector for exploitation, as it likely represents a database identifier used in select statements without proper parameterization or input filtering. This creates a scenario where an attacker can manipulate the sql query execution flow by injecting sql syntax characters such as single quotes, semicolons, or comment markers that alter the intended query behavior.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation can result in complete database compromise and potential lateral movement within the affected system. Remote attackers can leverage this vulnerability to extract confidential information including user credentials, business data, and potentially system configuration details that could facilitate further attacks. The vulnerability's remote exploitability means that attackers do not require local system access or physical presence to conduct their operations, making it particularly dangerous in web-facing applications. Organizations running affected versions of Pre Studio Business Cards Designer face significant risk of data breaches, regulatory compliance violations, and potential service disruption if this vulnerability remains unpatched.
Mitigation strategies for CVE-2011-5139 should prioritize immediate implementation of input validation and parameterized queries to prevent sql injection attacks. The most effective approach involves adopting prepared statements or parameterized queries where all user input is treated as data rather than executable code, eliminating the possibility of sql command injection. Additionally, implementing proper input sanitization techniques including character encoding, length validation, and whitelist-based input filtering can significantly reduce the attack surface. Organizations should also consider implementing web application firewalls to detect and block suspicious sql injection patterns, along with regular security assessments to identify similar vulnerabilities across the application stack. The remediation process should include thorough code review and testing procedures to ensure that all input parameters are properly validated before being used in database operations, aligning with industry best practices outlined in owasp top ten and iso 27001 security standards.