CVE-2024-25355: s3-url-parser Denial of Service via regexes component
Summary
CVE-2024-25355: s3-url-parser vulnerable to Denial of Service via regexes component. Affects s3-url-parser versions 1.0.3. No fix is published. How to fix ↓
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Background
s3-url-parser is an npm package used for parsing and manipulating URLs related to Amazon S3. It provides functionality to extract information such as bucket name, object key, and region from S3 URLs. The package is widely used in applications that interact with Amazon S3 for storage and retrieval of objects. However, version 1.0.3 of s3-url-parser is vulnerable to a denial of service attack due to a flaw in the regexes component.
Vulnerability Detail
The vulnerability in s3-url-parser version 1.0.3 allows an attacker to trigger a denial of service attack by exploiting the regexes component. By sending a specially crafted URL, the regular expressions used for parsing the URL can be manipulated to cause excessive backtracking, leading to high CPU usage and unresponsiveness of the application. This can result in a complete denial of service, rendering the application unavailable to legitimate users.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, developers can implement input validation and sanitization to mitigate the risk of exploitation. By validating and sanitizing user-supplied URLs before passing them to s3-url-parser, the impact of the vulnerability can be reduced. This can be achieved by using libraries or built-in functions that enforce strict URL validation and reject malicious inputs.
Conclusion
s3-url-parser version 1.0.3 is vulnerable to a denial of service attack due to a flaw in the regexes component. To mitigate this vulnerability, it is crucial to upgrade to a patched version of the package and regularly update dependencies. Implementing input validation and sanitization can provide temporary protection. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability allows an attacker to launch a denial of service attack, causing the affected application to become unresponsive and unavailable to legitimate users.
You can use the Vulert Playground at Vulert Scanner to check if your application is affected by this vulnerability. The playground analyzes your package-lock.json file and provides real-time alerts for open-source vulnerabilities, including this one.
At the time of this advisory, there are no known public exploits specifically targeting this vulnerability. However, it is important to apply the recommended fix to prevent any potential exploitation.
No, a CVSS score has not been assigned to this vulnerability at the moment. It is advisable to follow the recommended remediation steps provided in this advisory.
While upgrading to a patched version is the recommended approach, you can mitigate the risk by implementing input validation and sanitization for user-supplied URLs. This can help reduce the impact of the vulnerability until the package is updated.
