8.8

CVSS Score

3.0

-

CVSS Score

Basic Information

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CVE-2018-3258

CVE-2018-3258: Improper Privilege Management in MySQL Connectors Java

Vulnerability in the MySQL Connectors component of Oracle MySQL (subcomponent: Connector/J). Supported versions that are affected are 8.0.12 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in takeover of MySQL Connectors. CVSS 3.0 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

(GitHub Advisory)

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CVE-2018-3258

CVE-2018-3258:

8.8

CVSS Score

3.0

-

CVSS Score

Basic Information

Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
mysql:mysql-connector-java	maven	< 8.0.13	8.0.13

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stemmed from improper handling of asynchronous X Protocol messages when 'xdevapi.useAsyncProtocol' was enabled. Key indicators include:

The default async protocol activation in PropertyDefinitions.java created an insecure code path
AsyncMessageReader's message handling lifecycle (start->read->dispatch) lacked proper security validation
TLS configuration in ExportControlled allowed weak ciphers when async was enabled
The patch focused on hardening async message processing, adding validation layers, and disabling async by default These functions represent the core async message processing chain that would be active during exploitation when the vulnerable async protocol was enabled.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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8.8

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2018-3258: Improper Privilege Management in MySQL Connectors Java

CVE-2018-3258:

8.8

-

Basic Information

Basic Information

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability IntelligenceMiggo AI

Technical Details

CVE-2018-3258: Improper Privilege Management in MySQL Connectors Java

8.8

8.8

Basic Information

Basic Information

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI