CVE-2022-31005 : What You Need to Know
Learn about CVE-2022-31005, an integer overflow vulnerability in Vapor's HTTP web framework for Swift. Users of Vapor prior to version 4.60.3 are at risk. Find out the impact, affected systems, and mitigation steps.
Vapor is an HTTP web framework for Swift. Users of Vapor prior to version 4.60.3 with FileMiddleware enabled are vulnerable to an integer overflow vulnerability that can crash the application. This vulnerability is tracked as CVE-2022-31005. Here's what you need to know about this issue.
Understanding CVE-2022-31005
CVE-2022-31005 is an integer overflow vulnerability in Vapor's HTTP web framework for Swift. This vulnerability affects versions of Vapor that are below version 4.60.3 with FileMiddleware enabled.
What is CVE-2022-31005?
The CVE-2022-31005 vulnerability in Vapor's HTTP web framework for Swift allows attackers to trigger an integer overflow, leading to a potential application crash.
The Impact of CVE-2022-31005
The impact of CVE-2022-31005 is rated with a CVSSv3 base score of 7.5, indicating a high severity vulnerability. Attackers can exploit this vulnerability over a network without requiring privileges, potentially causing a denial of service by crashing the application.
Technical Details of CVE-2022-31005
Here are the technical details related to CVE-2022-31005.
Vulnerability Description
The vulnerability is due to an integer overflow within Vapor's HTTP Range Request handling code, which can be exploited by attackers to crash the application.
Affected Systems and Versions
Users of Vapor web framework with versions below 4.60.3 and with FileMiddleware enabled are affected by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted HTTP Range Requests to trigger the integer overflow condition, potentially leading to an application crash.
Mitigation and Prevention
To mitigate the CVE-2022-31005 vulnerability, follow these steps:
Immediate Steps to Take
- Update Vapor to version 4.60.3 or later, which contains a patch for this vulnerability.
- As a workaround, disable FileMiddleware and serve your content via a Content Delivery Network (CDN).
Long-Term Security Practices
- Regularly update your software components to their latest secure versions.
- Implement secure coding practices to prevent integer overflow vulnerabilities.
Patching and Updates
- Apply patches and updates released by Vapor promptly to address security vulnerabilities and ensure the stability of your applications.