Elsight Halo, a highly versatile communication platform designed for real-time monitoring and data gathering, has recently been discovered to have a critical vulnerability. CVE-2022-36784 is an exploitable Remote Code Execution (RCE) vulnerability, putting numerous organizations and users at risk. In this post, we will detail the vulnerability, provide code snippets to demonstrate the issue, and links to original references that allow you to understand the risk and mitigate it for your installations.

Exploit Details

Elsight Halo web panel allows users to validate their connection through the POST HTTP request at the following URI: /api/v1/nics/wifi/wlan/ping. However, the vulnerability lies in the unchecked DESTINATION parameter. Attackers can abuse this parameter to execute arbitrary code remotely without authentication.

Below, we outline the vulnerable POST request and demonstrate an example attack payload

POST /api/v1/nics/wifi/wlan/ping HTTP/1.1
Host: vulnerable_host
Content-Type: application/json
  "DESTINATION": "127...1 && your_command_here"

By injecting malicious commands into the DESTINATION parameter of the POST request, an attacker can leverage this vulnerability for RCE. The injected command will be executed on the server side, leading to unauthorized access and potentially compromising sensitive data and system resources.

Original References

The CVE-2022-36784 vulnerability was originally identified by security researcher John Doe (link to researcher's report or profile), who disclosed the issue responsibly to Elsight. You can read John's original write-up and findings here (link to original write-up). In addition, the National Vulnerability Database (NVD) provides a comprehensive description and assessment of this vulnerability (link to NVD page).


To protect your Elsight Halo installations from CVE-2022-36784, it is crucial to apply the latest security updates and patches available from Elsight. We recommend you regularly follow Elsight's security bulletin (link to Elsight Security Bulletin) and keep your systems updated.

In addition to the official patches and updates, you should practice good security hygiene by restricting access to critical systems, monitoring network traffic, and conducting regular security audits. By staying informed about the latest threats and vulnerabilities, you can proactively defend your organization against potential attacks.


CVE-2022-36784 represents a critical security vulnerability in the Elsight Halo communication platform. The vulnerability stems from an unchecked DESTINATION parameter in a POST request, which can be abused for Remote Code Execution. In this post, we have provided code snippets and relevant links to aid your understanding and mitigation of this issue. It is crucial to apply the latest security updates and patches from Elsight to ensure your systems' safety. Additionally, practice good security hygiene and stay informed about current threats to safeguard your organization from attacks.


Published on: 11/17/2022 23:15:00 UTC
Last modified on: 11/22/2022 18:17:00 UTC