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CVE-2021-3779— Ruby-MySQL Gem Client File Read

Quick assessment

Affected
Tomita Masahiro ruby-mysql
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ruby ruby-mysql是Ruby社区的一个纯 Ruby 版本 MySQL 连接器。 Ruby ruby-mysql Gem 2.10.0 之前版本存在安全漏洞，该漏洞源于恶意 MySQL 服务器可以从客户端请求本地文件内容，而无需来自用户的明确授权。

AI Predicted 6.5 Difficulty: Moderate EPSS 1.19% · P67

Possible ATT&CK Techniques 1 AI

T1213 · Data from Information Repositories
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I. Basic Information for CVE-2021-3779

Vulnerability Information
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Vulnerability Title
Ruby-MySQL Gem Client File Read
Source: CVE Program / CVE List V5
Vulnerability Description
A malicious MySQL server can request local file content from a client using ruby-mysql prior to version 2.10.0 without explicit authorization from the user. This issue was resolved in version 2.10.0 and later.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
资源在另一范围的外部可控制索引
Source: CVE Program / CVE List V5
Vulnerability Title
Ruby ruby-mysql 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ruby ruby-mysql是Ruby社区的一个纯 Ruby 版本 MySQL 连接器。 Ruby ruby-mysql Gem 2.10.0 之前版本存在安全漏洞，该漏洞源于恶意 MySQL 服务器可以从客户端请求本地文件内容，而无需来自用户的明确授权。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tomita Masahiro ruby-mysql 2.9.14 ~ 2.9.14 -

II. Public POCs for CVE-2021-3779

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III. Intelligence Information for CVE-2021-3779

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Security Blog Posts for CVE-2021-3779 (1)

IV. Related Vulnerabilities

Same weakness: CWE-610

V. Comments for CVE-2021-3779

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