CVE-2022-42889 (Text4Shell) Report

A repository that organizes an analysis report for Apache Commons Text CVE-2022-42889 and attack demonstration materials based on a closed test environment.

Documents

• CVE-2022-42889 - Vulnerability Analysis Report

Repository Structure

CVE-2022-42889-Report/
├─ README.md
├─ report/
│  └─ CVE-2022-42889_Text4Shell_Report.md
└─ images/
   ├─ 01-docker-check.png
   ├─ 02-maven-download.png
   ├─ ...
   └─ 19-shell-success.png

Summary

• Affected versions: Apache Commons Text 1.5 ~ 1.9
• Main condition: when external input is passed through createInterpolator() and replace() paths
• Main dangerous lookups: script, dns, url
• Test scope: normal operation verification, file creation based RCE verification, shell connection verification
• Operational recommendations from a response and defense perspective

References

• SK Shieldus Insight Research
• Infosecwriteups
• CVE Information Check