CVE-2008-4203 in CzarNews
Summary
by MITRE
SQL injection vulnerability in cn_users.php in CzarNews 1.20 and earlier allows remote attackers to execute arbitrary SQL commands via a recook cookie.
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Analysis
by VulDB Data Team • 11/04/2024
The vulnerability identified as CVE-2008-4203 represents a critical sql injection flaw within the CzarNews content management system version 1.20 and earlier. This vulnerability exists in the cn_users.php script which processes user authentication and management functions. The flaw manifests through improper input validation of the recook cookie parameter, allowing malicious actors to inject arbitrary sql commands into the application's database layer. The vulnerability classification aligns with CWE-89 which specifically addresses sql injection weaknesses in software applications.
The technical exploitation of this vulnerability occurs when an attacker manipulates the recook cookie value to include malicious sql payload syntax. This cookie parameter is typically used for session management or user preference persistence but fails to properly sanitize user input before incorporating it into database queries. When the application processes this unsanitized input within sql execution contexts, it enables attackers to manipulate the underlying database operations and potentially execute unauthorized commands. The vulnerability demonstrates a classic lack of input validation and output encoding practices that are fundamental to secure coding standards.
The operational impact of this vulnerability extends beyond simple data theft or modification. Remote attackers can leverage this flaw to gain unauthorized access to the database, potentially leading to complete system compromise. Attackers may extract sensitive user information including passwords, personal data, and administrative credentials stored within the database. The vulnerability also permits data manipulation and deletion operations, potentially causing service disruption and data loss. Additionally, successful exploitation could provide attackers with a persistent foothold within the system, enabling further reconnaissance and lateral movement within the network infrastructure. This vulnerability directly aligns with attack techniques documented in the attack pattern taxonomy under the category of database injection attacks.
Mitigation strategies for CVE-2008-4203 should focus on immediate patching of the CzarNews application to version 1.21 or later where the vulnerability has been addressed. Organizations should implement proper input validation and sanitization measures for all user-supplied data, particularly cookie parameters. The application should employ parameterized queries or prepared statements to prevent sql injection attacks, which is a core recommendation of the OWASP top ten security risks. Additionally, implementing proper output encoding and input filtering mechanisms will significantly reduce the attack surface. Network monitoring should be enhanced to detect suspicious cookie values and unusual database access patterns. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other applications and systems within the organization's infrastructure. The remediation process should also include comprehensive code review procedures to ensure that similar input validation flaws are not present in other components of the application.