CVE-2023-30798 : Security Advisory and Response
Understand the impact of CVE-2023-30798 on Starlette Python framework. Learn about the HTTP DoS vulnerability, affected versions, and mitigation steps.
A detailed overview of CVE-2023-30798 explaining the vulnerability, impact, technical details, and mitigation steps.
Understanding CVE-2023-30798
This section covers the key aspects of CVE-2023-30798 affecting the Starlette Python framework.
What is CVE-2023-30798?
The vulnerability in Starlette Python framework before version 0.25.0 allows an unauthenticated remote attacker to specify an excessive number of form fields or files, leading to denial of service through high memory consumption.
The Impact of CVE-2023-30798
The impact of this vulnerability, known as CAPEC-469 HTTP DoS, includes a high availability impact, with a CVSS base score of 7.5 (High Severity). The attack vector is through the network with low complexity.
Technical Details of CVE-2023-30798
Explore the specifics of CVE-2023-30798 regarding the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability arises from the MultipartParser usage in Encode's Starlette Python framework, allowing attackers to overload the system with excessive form data, resulting in denial of service.
Affected Systems and Versions
The vulnerability affects Starlette Python framework versions prior to 0.25.0.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a large number of form fields or files to the targeted application, causing memory exhaustion and subsequent denial of service.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2023-30798 and prevent potential exploits.
Immediate Steps to Take
Immediate steps involve updating the Starlette framework to version 0.25.0 or higher. Implement network-level protections to monitor and block excessive form data requests.
Long-Term Security Practices
Adopt secure coding practices to validate and limit user input. Regularly monitor and analyze traffic patterns to detect anomalous behavior indicating a potential denial of service attack.
Patching and Updates
Stay informed about security advisories and updates from Starlette's official sources and apply patches promptly to address known vulnerabilities.