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CVE-2022-21724— Unchecked Class Instantiation when providing Plugin Classes

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PostgreSQL JDBC Driver是一个用 Pure Java（Type 4）编写的开源 JDBC 驱动程序，用于 PostgreSQL 本地网络协议中进行通信。 PostgreSQL JDBC Driver（简称 PgJDBC）存在安全漏洞，该漏洞源于pgjdbc连接属性提供的类名实例化插件实例，驱动程序在实例化类之前并不验证类是否实现了预期的接口从而导致远程代码。

CVSS 7.0 · High EPSS 3.01% · P86

Possible ATT&CK Techniques 1 AI

T1195 · Supply Chain Compromise
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I. Basic Information for CVE-2022-21724

Vulnerability Information
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Vulnerability Title
Unchecked Class Instantiation when providing Plugin Classes
Source: CVE Program / CVE List V5
Vulnerability Description
pgjdbc is the offical PostgreSQL JDBC Driver. A security hole was found in the jdbc driver for postgresql database while doing security research. The system using the postgresql library will be attacked when attacker control the jdbc url or properties. pgjdbc instantiates plugin instances based on class names provided via `authenticationPluginClassName`, `sslhostnameverifier`, `socketFactory`, `sslfactory`, `sslpasswordcallback` connection properties. However, the driver did not verify if the class implements the expected interface before instantiating the class. This can lead to code execution loaded via arbitrary classes. Users using plugins are advised to upgrade. There are no known workarounds for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
PostgreSQL JDBC Driver 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PostgreSQL JDBC Driver是一个用 Pure Java（Type 4）编写的开源 JDBC 驱动程序，用于 PostgreSQL 本地网络协议中进行通信。 PostgreSQL JDBC Driver（简称 PgJDBC）存在安全漏洞，该漏洞源于pgjdbc连接属性提供的类名实例化插件实例，驱动程序在实例化类之前并不验证类是否实现了预期的接口从而导致远程代码。
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
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II. Public POCs for CVE-2022-21724

# POC Description Source Link Shenlong Link
1 None https://github.com/ToontjeM/CVE-2022-21724 POC Details
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III. Intelligence Information for CVE-2022-21724

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Patches & Fixes for CVE-2022-21724 (1)

Vendor Advisories for CVE-2022-21724 (3)

Mailing List Discussions for CVE-2022-21724 (1)

Same Patch Batch · n/a · 2022-02-02 · 25 CVEs total

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CVE-2021-24043 Facebook WhatsApp 缓冲区错误漏洞
CVE-2021-39044 IBM Financial Transaction Manager 跨站请求伪造漏洞
CVE-2022-24069 Insyde InsydeH2O 权限许可和访问控制问题漏洞
CVE-2021-39070 IBM Security Verify Access 安全漏洞
CVE-2021-42633 PrinterLogic Web Stack SQL注入漏洞
CVE-2021-42637 PrinterLogic Web Stack 代码问题漏洞
CVE-2021-42639 PrinterLogic Web Stack 跨站脚本漏洞

Showing top 20 of 25 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

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