CVE-2007-6543 in eSyndiCat Link Exchange
Summary
by MITRE
SQL injection vulnerability in suggest-link.php in eSyndiCat Link Exchange Script allows remote attackers to execute arbitrary SQL commands via the id parameter.
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Analysis
by VulDB Data Team • 10/13/2024
The CVE-2007-6543 vulnerability represents a critical sql injection flaw within the eSyndiCat Link Exchange Script, specifically in the suggest-link.php component. This vulnerability exposes the application to remote code execution attacks through improper input validation mechanisms. The flaw manifests when the application fails to adequately sanitize user-supplied data passed through the id parameter, creating an exploitable entry point for malicious actors to manipulate database queries. The vulnerability directly impacts the integrity and confidentiality of the underlying database system, as attackers can leverage this weakness to extract sensitive information, modify database records, or even gain unauthorized administrative access to the application's backend infrastructure.
The technical nature of this vulnerability aligns with CWE-89, which categorizes sql injection as a fundamental weakness in application security where untrusted data is incorporated into sql commands without proper sanitization or parameterization. The attack vector operates through the web application's interface where the id parameter is processed without adequate input filtering, allowing malicious sql payloads to be executed within the database context. This weakness demonstrates poor secure coding practices and highlights the critical importance of implementing proper input validation and output encoding mechanisms. The vulnerability exists at the application layer where user input directly influences database operations, making it particularly dangerous as it can be exploited from any remote location without requiring authentication or privileged access to the system.
The operational impact of this vulnerability extends beyond simple data compromise, as it enables attackers to perform extensive database manipulation activities including data exfiltration, unauthorized data modification, and potential system enumeration. Remote attackers can exploit this vulnerability to execute arbitrary sql commands that may grant them elevated privileges within the database environment, potentially leading to complete system compromise. The vulnerability affects the availability, integrity, and confidentiality of the affected system, as malicious actors can disrupt services by corrupting data or deny access to legitimate users through database manipulation. Organizations running the eSyndiCat Link Exchange Script are particularly vulnerable since this flaw can be exploited through standard web browser interactions, making it accessible to attackers with minimal technical expertise. The attack surface is further expanded by the fact that this vulnerability can be chained with other exploits to escalate privileges or gain deeper system access, as outlined in the attack tactics and techniques documented in the mitre att&ck framework.
Mitigation strategies for CVE-2007-6543 must focus on implementing proper input validation and parameterized queries to prevent sql injection attacks. Organizations should immediately apply the vendor-provided patch or upgrade to a secure version of the eSyndiCat Link Exchange Script to address the vulnerability. Additionally, implementing web application firewalls and input sanitization measures can provide additional layers of protection. The remediation process should include thorough code review to identify and address similar vulnerabilities throughout the application codebase. Security teams should also implement monitoring and logging mechanisms to detect potential exploitation attempts and establish incident response procedures for rapid containment of any successful attacks. Regular security assessments and vulnerability scanning should be conducted to identify and remediate similar weaknesses in other applications and systems within the organization's infrastructure.