CVE-2014-8089

Vulnerability

Description CVE-2014-8089 is a SQL injection vulnerability in Zend Framework when using the sqlsrv PHP extension. The flaw allows remote attackers to inject arbitrary SQL commands by sending a null byte in input parameters, which is not properly sanitized before being used in database queries. This affects versions before 1.12.9, 2.2.x before 2.2.8, and 2.3.x before 2.3.3 [1].

Exploitation

An attacker can exploit this vulnerability by providing a specially crafted null byte to a SQL query parameter. The attack is performed remotely and does not require authentication, as the injection occurs through user-supplied input that is processed by the sqlsrv extension. The vulnerability is triggered when the framework constructs SQL statements using untrusted data without proper escaping or parameterization [1][2].

Impact

Successful exploitation allows an attacker to execute arbitrary SQL commands on the underlying database. This can lead to unauthorized data access, data modification, or complete compromise of the database server. The impact is critical as it bypasses security controls and can expose sensitive information [1][3][4].

Mitigation

Zend Framework addressed this issue by releasing patched versions: 1.12.9, 2.2.8, and 2.3.3. Users are advised to upgrade immediately. Red Hat also backported fixes to Fedora and EPEL repositories [2]. No workaround is available, so updating the framework is essential to prevent exploitation.