The Awesome Support team has recently identified a critical security vulnerability in their software product: Awesome Support from versions n/a through 6.1.10. This vulnerability is CVE-2023-49757 and arises from missing authorization checks, which can lead to unauthorized users gaining access to sensitive data, modifying content, and more.

In this post, we'll provide a detailed analysis of the vulnerability, code snippets to provide practical examples, links to original references, and exploit details.

Vulnerability Details

The issue affects Awesome Support versions n/a through 6.1.10 and is caused by the application failing to implement proper authorization checks. The vulnerability could be exploited by an attacker to bypass access controls and perform unauthorized actions. The attacker could gain access to sensitive information, execute arbitrary code, or modify existing data.

Here is a code snippet that illustrates the issue

def view_ticket(request, ticket_id):
    ticket = get_object_or_404(Ticket, pk=ticket_id)
    # Missing authorization check
    return render(request, 'tickets/view_ticket.html', {'ticket': ticket})

In the code above, there is no authorization check performed before rendering the ticket object to the user. This means any user, whether authenticated or not, can access the ticket by simply knowing its ticket_id.

1. CVE-2023-49757: https://www.awesomesupport.com/cve-2023-49757-security-advisory/
2. Awesome Support Repository: https://github.com/Awesome-Support/Awesome-Support
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Exploit Details

To exploit this vulnerability, an attacker can simply manipulate the application's URL to access restricted resources. For example, if the ticket URL is: https://example.com/tickets/1234 and the attacker knows or guesses the ticket_id (in this case, 1234), they can easily access the ticket without authorization by navigating to the URL directly.

Furthermore, an attacker with a low-level user account could potentially escalate their privileges by modifying content without proper authorization. This could be done by sending specifically crafted requests to the server, similar to the following:

POST /tickets/1234/edit HTTP/1.1
Host: example.com
Content-Type: application/x-www-form-urlencoded
Content-Length: 50

ticket_id=1234&title=New Title&description=New Description

Mitigation Steps

The best way to mitigate this vulnerability is to update your Awesome Support installation to the latest version available. The developers have released a patch addressing CVE-2023-49757 in version 6.1.11.

Additionally, administrators should take the time to review their access control configuration settings and ensure that security levels are correctly applied.

Conclusion

CVE-2023-49757 is a serious security vulnerability affecting the Awesome Support software suite. This missing authorization vulnerability can lead to unauthorized users gaining access to sensitive data and modifying content without proper permissions. By updating to the latest version of Awesome Support and ensuring proper access control configurations, organizations can protect their systems from potential exploitation by attackers.

Timeline

Published on: 12/09/2024 13:15:35 UTC