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CVE-2022-23307— A deserialization flaw in the Chainsaw component of Log4j 1 can lead to malicious code execution.

Quick assessment

Affected
Apache Software Foundation Apache Log4j 1.x
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Log4j是美国阿帕奇（Apache）基金会的一款基于Java的开源日志记录工具。 Apache log4j 1.x存在代码问题漏洞，该漏洞源于在log4j的chainsaw组件中某些日志条目的内容被反序列化并可能允许代码执行。攻击者可以在运行 chainsaw 组件时向服务器发送带有序列化数据的请求，进而执行恶意代码。

AI Predicted 7.5 Difficulty: Moderate EPSS 54.41% · P99

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
Apache Software Foundation Apache Log4j 1.x 1.2.1< unspecified affected
unspecified≤ 2.0-alpha1 affected
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I. Basic Information for CVE-2022-23307

Vulnerability Information
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Vulnerability Title
A deserialization flaw in the Chainsaw component of Log4j 1 can lead to malicious code execution.
Source: CVE Program / CVE List V5
Vulnerability Description
CVE-2020-9493 identified a deserialization issue that was present in Apache Chainsaw. Prior to Chainsaw V2.0 Chainsaw was a component of Apache Log4j 1.2.x where the same issue exists.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Log4j 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Log4j是美国阿帕奇（Apache）基金会的一款基于Java的开源日志记录工具。 Apache log4j 1.x存在代码问题漏洞，该漏洞源于在log4j的chainsaw组件中某些日志条目的内容被反序列化并可能允许代码执行。攻击者可以在运行 chainsaw 组件时向服务器发送带有序列化数据的请求，进而执行恶意代码。
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
Apache Software Foundation Apache Log4j 1.x 1.2.1 ~ unspecified -

II. Public POCs for CVE-2022-23307

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III. Intelligence Information for CVE-2022-23307

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Vendor Advisories for CVE-2022-23307 (2)

Mailing List Discussions for CVE-2022-23307 (1)

Other References for CVE-2022-23307 (1)

Same Patch Batch · Apache Software Foundation · 2022-01-18 · 3 CVEs total

CVE-2022-23302 Deserialization of untrusted data in JMSSink in Apache Log4j 1.x
CVE-2022-23305 SQL injection in JDBC Appender in Apache Log4j V1

IV. Related Vulnerabilities

Same product: Apache Log4j 1.x
Same vendor: Apache Software Foundation
Same weakness: CWE-502

V. Comments for CVE-2022-23307

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