CVE-2021-37253 : Security Advisory and Response
Learn about CVE-2021-37253, a vulnerability in M-Files Web before 20.10.9524.1 that allows a denial of service through manipulated HTTP request headers. Understand the impact, technical details, and mitigation steps.
M-Files Web before 20.10.9524.1 is impacted by CVE-2021-37253, which allows a denial of service through overlapping ranges in HTTP requests with crafted Range or Request-Range headers. The issue is disputed, as the range behavior is typically managed by the web server.
Understanding CVE-2021-37253
This section delves into the details of the CVE-2021-37253 vulnerability in M-Files Web.
What is CVE-2021-37253?
The CVE-2021-37253 vulnerability affects M-Files Web before 20.10.9524.1, enabling a denial of service attack via HTTP requests with manipulated Range or Request-Range headers. The responsibility for this behavior is debated, suggesting it falls within the web server's domain.
The Impact of CVE-2021-37253
The impact of CVE-2021-37253 centers on the potential for a denial of service when exploited through overlapping ranges in HTTP requests, affecting the availability of the M-Files Web service.
Technical Details of CVE-2021-37253
This section covers the technical aspects of the CVE-2021-37253 vulnerability.
Vulnerability Description
The vulnerability in M-Files Web allows attackers to cause a denial of service by manipulating Range or Request-Range headers in HTTP requests, leading to service unavailability.
Affected Systems and Versions
M-Files Web versions prior to 20.10.9524.1 are impacted by CVE-2021-37253, leaving them susceptible to the denial of service attack utilizing overlapping ranges.
Exploitation Mechanism
Exploiting CVE-2021-37253 involves crafting HTTP requests with specific Range or Request-Range headers to trigger the denial of service within M-Files Web.
Mitigation and Prevention
Explore the measures to mitigate and prevent the CVE-2021-37253 vulnerability in M-Files Web.
Immediate Steps to Take
To address CVE-2021-37253, organizations should consider implementing filters or patches to prevent malicious HTTP requests targeting the vulnerable ranges.
Long-Term Security Practices
In the long term, ensuring timely updates and security monitoring can help mitigate the risk of denial of service attacks like the one presented in CVE-2021-37253.
Patching and Updates
Regularly updating M-Files Web to versions beyond 20.10.9524.1 and monitoring for security advisories are essential steps in safeguarding against vulnerabilities like CVE-2021-37253.