A new vulnerability, identified as CVE-2024-49038, has been discovered within the Copilot Studio software. This vulnerability allows for an unauthorized attacker to exploit improper neutralization of input during the web page generation process, commonly known as 'Cross-site Scripting' (XSS). If successfully executed, this can lead to a significant elevation of privilege over a network, putting sensitive information and resources at risk.
Details
Cross-site Scripting is a common web application vulnerability that allows malicious actors to inject malicious scripts into web pages viewed by other users. The vulnerability arises due to the improper neutralization of user input included within the generated web pages. Specifically, Copilot Studio fails to properly sanitize and escape potentially harmful input, thereby allowing unauthorized actors to execute arbitrary scripts within a user's browser.
Exploit
The following snippet demonstrates the simplistic nature of exploiting CVE-2024-49038 within Copilot Studio:
<script>alert("XSS exploit!")</script>
By merely including this line of code as input within the affected Copilot Studio component, an attacker can trigger a security alert within a user's browser, showcasing the potential for more dangerous scripts and manipulations that could lead to further malicious activities.
Mitigation and Prevention
Copilot Studio users should immediately update to the latest software version, which includes a patch to address this vulnerability. Additionally, it is essential to implement proper input validation and output encoding as security best practices throughout the development process for web applications.
Links to Original References:
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49038
- https://owasp.org/www-community/attacks/xss/
Conclusion
CVE-2024-49038 is a critical Cross-site Scripting vulnerability that affects Copilot Studio. If left unpatched, an attacker could exploit this to gain elevated privilege over a network, posing significant risks to system and user security. To protect against this exploit, Copilot Studio users must ensure that they are using the latest version of the software and follow best practices for proper input validation and output encoding.
Timeline
Published on: 11/26/2024 20:15:31 UTC
Last modified on: 12/20/2024 17:04:23 UTC