CVE-2008-2770 in MycroCMS
Summary
by MITRE
SQL injection vulnerability in index.php in MycroCMS 0.5, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the entry_id parameter.
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Analysis
by VulDB Data Team • 10/28/2024
The vulnerability identified as CVE-2008-2770 represents a critical sql injection flaw within the MycroCMS 0.5 content management system. This vulnerability specifically affects the index.php script and manifests when the php configuration parameter magic_quotes_gpc is disabled. The flaw occurs through the entry_id parameter which serves as an entry point for malicious sql commands. The absence of proper input validation and sanitization creates an exploitable condition where remote attackers can manipulate database queries by injecting malicious sql payloads through this parameter.
The technical implementation of this vulnerability stems from the application's failure to properly escape or filter user-supplied input before incorporating it into sql query constructions. When magic_quotes_gpc is disabled, php does not automatically escape special characters in GET, POST, and COOKIE data, leaving the application susceptible to sql injection attacks. The entry_id parameter in index.php accepts user input without adequate sanitization, allowing attackers to craft malicious sql statements that bypass authentication mechanisms, extract sensitive data, or manipulate database records. This vulnerability directly maps to CWE-89 which defines sql injection as the insertion of malicious sql code into input fields for execution by the database. The attack vector leverages the principle of insufficient input validation and the lack of proper parameter binding or escaping mechanisms.
The operational impact of this vulnerability extends beyond simple data theft or manipulation. Remote attackers can leverage this flaw to gain unauthorized access to the underlying database, potentially compromising all content managed by MycroCMS 0.5. The vulnerability enables attackers to execute arbitrary sql commands which may include data extraction, modification, or deletion operations. Depending on the database permissions, attackers might also be able to escalate privileges, execute system commands, or establish persistent access through database backdoors. This vulnerability essentially provides a pathway for attackers to compromise the entire content management infrastructure, potentially affecting website availability and data integrity. The impact is particularly severe in environments where MycroCMS is used for managing sensitive information or where the database contains personal user data.
Mitigation strategies for CVE-2008-2770 should focus on immediate application-level fixes and configuration adjustments. The primary recommendation involves implementing proper input validation and sanitization for all user-supplied data, particularly the entry_id parameter in index.php. Developers should employ prepared statements or parameterized queries to ensure that user input cannot be interpreted as sql commands. Additionally, the php configuration should be adjusted to enable magic_quotes_gpc or implement alternative input sanitization measures. Organizations should also consider upgrading to newer versions of MycroCMS where these vulnerabilities have been addressed through proper code review and security hardening. Network-level protections including web application firewalls and intrusion detection systems can provide additional layers of defense, though they should not replace proper application security measures. The remediation process should also include comprehensive security testing and code review to identify similar vulnerabilities in other parts of the application, aligning with ATT&CK technique T1190 which covers exploitation of vulnerabilities in web applications.