Executive Summary

This vulnerability exists in the Stripe Plugin of Chengdu Everbrite Network Technology BeikeShop up to version 1.6.0.22, specifically in the callback function located in plugins/Stripe/Controllers/StripeController.php.

An attacker can manipulate the Request argument to bypass proper authorization controls, allowing unauthorized actions to be performed remotely.

The vulnerability has a public exploit available, making it easier for attackers to take advantage of it.

A patch has been released to fix this issue, and it is recommended to apply it.

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Impact Analysis

Exploitation of this vulnerability can lead to improper authorization, meaning attackers could perform actions they are not permitted to do.

Since the attack can be initiated remotely without any user interaction or privileges, it poses a significant security risk.

Potential impacts include unauthorized access to sensitive data, modification of data, and disruption of service.

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Mitigation Strategies

It is suggested to install the patch named 6719e0fc690ea0a998452092862e0f0a17c65968 to address this issue.

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Compliance Impact

The vulnerability allows unauthenticated attackers to forge Stripe webhook events and mark orders as paid without actual payment, leading to financial loss and manipulation of sales data.

While the CVE description and resources do not explicitly mention compliance with standards such as GDPR or HIPAA, the improper authorization and potential financial fraud could indirectly impact compliance by violating principles of data integrity and transaction authenticity.

Organizations relying on BeikeShop with this vulnerability might face challenges in meeting regulatory requirements related to secure payment processing and accurate financial reporting.

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Detection Guidance

This vulnerability can be detected by monitoring for unauthorized or forged POST requests to the /callback/stripe endpoint of the BeikeShop platform. Specifically, requests that lack a valid Stripe-Signature header or contain manipulated order metadata indicating a charge.succeeded event could indicate exploitation attempts.

To detect such activity, you can use network traffic inspection tools or web server logs to filter for POST requests to the vulnerable endpoint and check for missing or invalid Stripe-Signature headers.

• Use curl or similar tools to manually test the endpoint for signature verification, for example: curl -X POST https://your-beikeshop-domain/callback/stripe -H "Content-Type: application/json" -d '{"type":"charge.succeeded","data":{"object":{"metadata":{"order_no":"test"}}}}'
• Use command-line tools like grep or awk on web server logs to find POST requests to /callback/stripe without a Stripe-Signature header: grep 'POST /callback/stripe' /var/log/nginx/access.log | grep -v 'Stripe-Signature'
• Employ intrusion detection systems (IDS) or web application firewalls (WAF) to alert on suspicious webhook requests lacking proper signature verification.

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