CVE-2007-6313 in Mysql Community Server
Summary
by MITRE
MySQL Server 5.1.x before 5.1.23 and 6.0.x before 6.0.4 does not check the rights of the entity executing BINLOG, which allows remote authorized users to execute arbitrary BINLOG statements.
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Analysis
by VulDB Data Team • 08/20/2019
The vulnerability described in CVE-2007-6313 represents a significant authorization bypass issue within MySQL Server versions prior to 5.1.23 and 6.0.4. This flaw resides in the binary logging functionality of the database system, which is critical for replication and point-in-time recovery operations. The issue stems from insufficient privilege validation during the execution of binary log commands, specifically the BINLOG statement that controls binary log operations.
The technical implementation of this vulnerability allows authenticated users to escalate their privileges through the execution of arbitrary BINLOG statements. When a user with proper authentication credentials attempts to execute certain binary log commands, the MySQL server fails to verify whether the user possesses the necessary administrative rights to perform these operations. This authorization gap enables malicious or compromised users to manipulate the binary logging system in ways that could compromise data integrity and system security. The flaw particularly affects scenarios where users might have standard database access but should not be permitted to control binary log operations.
From an operational impact perspective, this vulnerability creates serious security implications for database environments relying on MySQL's binary logging features. Attackers could potentially manipulate replication configurations, interfere with backup operations, or even execute unauthorized database modifications through the binary log interface. The vulnerability is particularly dangerous because it requires only authenticated access, meaning that users who have legitimate database credentials could exploit this flaw to gain elevated privileges or disrupt database operations. This issue affects the principle of least privilege enforcement within the database system.
The vulnerability aligns with CWE-284, which describes improper access control in software systems, and can be mapped to ATT&CK technique T1078 for valid accounts and T1059 for command and scripting interpreter. Organizations using affected MySQL versions face risks of data corruption, unauthorized access to replication configurations, and potential disruption of database availability. The binary log functionality is crucial for maintaining database consistency and recovery capabilities, making this vulnerability particularly impactful for systems relying on MySQL replication and backup strategies.
Mitigation strategies for CVE-2007-6313 include immediate patching of MySQL servers to versions 5.1.23 or later, or 6.0.4 and later, which contain the necessary security fixes. Database administrators should also implement additional monitoring of binary log operations and review user permissions to ensure that only authorized administrative accounts can execute binary log commands. Network segmentation and access controls should be strengthened around database servers to limit exposure. Regular security assessments and vulnerability scanning should be conducted to identify similar authorization gaps in database systems and other software components. The fix implemented by MySQL developers addresses the core privilege validation issue by ensuring proper authorization checks are performed before executing binary log operations.