CVE-2015-4769 in MySQL Server
Summary
by MITRE
Unspecified vulnerability in Oracle MySQL Server 5.6.24 and earlier allows remote authenticated users to affect availability via unknown vectors related to Server : Security : Firewall, a different vulnerability than CVE-2015-4767.
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Analysis
by VulDB Data Team • 06/03/2022
The vulnerability identified as CVE-2015-4769 represents a security flaw within Oracle MySQL Server versions 5.6.24 and earlier, specifically impacting the server's security firewall mechanisms. This issue affects remote authenticated users who can potentially disrupt system availability through unspecified attack vectors. The vulnerability falls under the broader category of server security weaknesses that could compromise the integrity and availability of database operations. Unlike CVE-2015-4767 which addresses different aspects of MySQL server security, this particular flaw focuses on the firewall-related components that govern network access controls and security boundaries within the MySQL infrastructure.
The technical nature of this vulnerability stems from the improper handling of security firewall rules within the MySQL server implementation. When authenticated users interact with the database system, they can exploit the flawed firewall mechanisms to potentially cause service disruption or availability issues. This type of vulnerability typically involves weaknesses in access control enforcement, where legitimate users with appropriate credentials might be able to manipulate the security layer to gain unauthorized access or cause denial of service conditions. The unspecified nature of the attack vectors suggests that multiple pathways exist for exploitation, making the vulnerability particularly concerning for security administrators who must account for various potential attack surfaces.
From an operational impact perspective, this vulnerability poses significant risks to database availability and system stability. Remote authenticated attackers who can successfully exploit this flaw may be able to cause service interruptions that affect business operations, data accessibility, and overall system reliability. The potential for availability disruption means that organizations running affected MySQL versions could experience service degradation or complete outages, particularly during critical business periods. This vulnerability particularly affects environments where database availability is paramount, such as financial services, healthcare systems, or e-commerce platforms where database downtime can result in substantial financial losses and reputational damage.
Security professionals should consider implementing immediate mitigations including upgrading to patched versions of Oracle MySQL Server, as the vulnerability affects versions through 5.6.24. Organizations should also review their current firewall configurations and access control policies to identify potential exploitation vectors. The vulnerability aligns with CWE-284, which addresses improper access control in software systems, and may also relate to ATT&CK techniques involving privilege escalation and denial of service attacks. Network segmentation and monitoring of database access patterns can help detect potential exploitation attempts, while comprehensive security assessments should be conducted to identify other related vulnerabilities that might exist within the MySQL server implementation. Regular patch management processes and security awareness training for database administrators are essential to prevent exploitation of this and similar vulnerabilities in the database infrastructure.