Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2020-9488

Quick assessment

Affected
Apache Apache Log4j
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.

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 中存在信任管理问题漏洞，该漏洞源于SmtpAppender没有验证主机名称与SMTPS连接的SSL/TLS证书是否匹配。攻击者可通过实施中间人攻击利用该漏洞拦截SMTPS连接，获取日志消息。

AI Predicted 7.5 Difficulty: Easy EPSS 8.22% · P95

Possible ATT&CK Techniques 1 AI

T1071 · Application Layer Protocol

Affected Version Matrix 2

VendorProduct Version RangeStatus
Apache Apache Log4j log4j-core 2.13.0 affected
log4j-core< 2.12.3 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2020-9488

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender. Fixed in Apache Log4j 2.12.3 and 2.13.1
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Log4j 信任管理问题漏洞
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 中存在信任管理问题漏洞，该漏洞源于SmtpAppender没有验证主机名称与SMTPS连接的SSL/TLS证书是否匹配。攻击者可通过实施中间人攻击利用该漏洞拦截SMTPS连接，获取日志消息。
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 Apache Log4j log4j-core 2.13.0 -

II. Public POCs for CVE-2020-9488

# POC Description Source Link Shenlong Link
1 Demo of CVE-2020-9488: Unsafe logging with Log4j and remediation https://github.com/arsalanraja987/java-log4j-cve-2020-9488 POC Details
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2020-9488

请登录查看更多情报信息。

Vendor Advisories for CVE-2020-9488 (8)

Mailing List Discussions for CVE-2020-9488 (37)

Other References for CVE-2020-9488 (1)

Same Patch Batch · Apache · 2020-04-27 · 3 CVEs total

CVE-2020-1952 Apache IoTDB 信任管理问题漏洞
CVE-2020-9481 Apache Traffic Server 资源管理错误漏洞

IV. Related Vulnerabilities

Same product: Apache Log4j
Same vendor: Apache