CVE-2017-10296 in MySQL Server
Summary
by MITRE
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: DML). Supported versions that are affected are 5.7.18 and earlier. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
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Analysis
by VulDB Data Team • 09/12/2024
The vulnerability identified as CVE-2017-10296 resides within Oracle MySQL Server's DML (Data Manipulation Language) subsystem, representing a critical availability threat that affects MySQL versions 5.7.18 and earlier. This flaw operates at the core of database operations where data is manipulated through standard SQL commands such as insert, update, and delete statements. The vulnerability's classification as easily exploitable indicates that attackers with minimal technical expertise can leverage this weakness, particularly when they possess high-privilege network access to the target system.
The technical nature of this vulnerability stems from improper handling of certain DML operations within the MySQL Server architecture, creating conditions where maliciously crafted database queries can trigger system instability. When exploited, the vulnerability enables attackers to induce a complete denial of service condition by causing the MySQL Server to hang or crash repeatedly, effectively rendering the database service unavailable to legitimate users. The CVSS score of 4.9 reflects the significant availability impact, with the attack vector requiring network access and high privileges, though the low complexity and lack of user interaction make it particularly dangerous in environments where administrative access might be compromised.
From an operational perspective, this vulnerability poses severe risks to database availability and business continuity, especially in enterprise environments where MySQL servers handle critical transactional data. The ability to cause repeated crashes means that legitimate database operations could be continuously disrupted, potentially leading to data loss, service interruptions, and financial losses. The vulnerability's impact extends beyond simple service disruption as it can affect entire application stacks that depend on database availability, creating cascading failures throughout the organization's IT infrastructure.
Security practitioners should prioritize immediate patching of affected MySQL versions, as this vulnerability represents a significant risk to database availability. The recommended mitigation strategy involves upgrading to MySQL versions that have addressed this specific DML handling flaw, while also implementing network segmentation and access controls to limit the potential attack surface. Organizations should conduct thorough vulnerability assessments to identify all instances of affected MySQL servers and establish monitoring procedures to detect potential exploitation attempts. This vulnerability aligns with CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and maps to ATT&CK technique T1499.004 (Endpoint Denial of Service) in the context of database server compromise, emphasizing the importance of maintaining up-to-date database software and implementing robust access controls to prevent unauthorized high-privilege access to database systems.