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Totaljs CMS 12.0 Widget Creation Code Injection

Totaljs CMS 12.0 Widget Creation Code Injection
Posted Sep 3, 2019
Authored by Riccardo Krauter

Totaljs CMS version 12.0 suffers from an authenticated code injection vulnerability during widget creation.

tags | exploit
SHA-256 | e84a3b40aad34be56be0995eaa9961a7ed8b23cec1171398351a1e261546a2b6

Totaljs CMS 12.0 Widget Creation Code Injection

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[+] Author/Discoverer: Riccardo Krauter @CertimeterGroup

[+] Title: Totaljs CMS Authenticated Code injection on widget creation.

[+] Affected software: Totaljs CMS 12.0

[+] Description:

An authenticated user with “widgets” privilege can gain RCE on the
remote server by creating a malicious widget with a special tag
containing java-script code that will be evaluated server side.
In the process of evaluating the tag by back-end is possible to escape
the sandbox object by using the following payload:
<script
total>global.process.mainModule.require(‘child_process’).exec(‘RCE
here’);</script>

[+] Step to reproduce:

1) browse to http://localhost:8000/admin/widgets/
2) click on create
3) paste the payload in the source code filed
4) click on save

[+] Project link: https://github.com/totaljs/cms

[+] Original report and details:
https://github.com/beerpwn/CVE/blob/master/Totaljs_disclosure_report/report_final.pdf

[+] Timeline:

- 13/02/2019 -> reported the issue to the vendor

.... many ping here

- 18/06/2019 -> pinged the vendor last time

- 30/08/2019 -> reported to seclist


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