Critical SSRF and Open Redirect Vulnerability in node-url-parse Package
Summary
CVE-2018-3774: Incorrect parsing in url-parse. Affects node-url-parse versions < 1.2.0-2. Fixed in 1.2.0-2. How to fix ↓
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Background
The node-url-parse package is a popular library used in Node.js applications for parsing URLs. It provides functionality to extract components from URLs, making it easier for developers to handle web addresses. However, versions prior to 1.4.3 have a critical vulnerability that can lead to security issues such as Server-Side Request Forgery (SSRF) and open redirects, which can compromise the integrity of applications relying on this package.
Vulnerability Detail
The vulnerability arises from incorrect parsing of URLs in versions of node-url-parse prior to 1.4.3. This flaw allows attackers to manipulate the hostname returned by the library, potentially leading to SSRF attacks where an attacker can send requests to internal services or open redirects that redirect users to malicious sites. The impact of this vulnerability is severe, as it can lead to unauthorized access to sensitive data and bypassing of authentication protocols.
How To Fix
Minimum fixed version
1.2.0-2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade node-url-parseTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If upgrading the package is not immediately possible, consider implementing input validation to sanitize URLs before they are processed by the node-url-parse library. This can help mitigate the risk of SSRF and open redirect attacks. For example, you can use a regular expression to validate the format of the URLs being parsed.
Conclusion
The node-url-parse package has a critical vulnerability that can lead to SSRF and open redirect attacks. It is crucial for developers to upgrade to the fixed version to protect their applications. Additionally, using tools like Vulert can help monitor for such vulnerabilities in real-time.
See every vulnerability recorded for node-url-parse →
FAQ
The CVSS score of this vulnerability is 10.0, indicating a critical level of severity.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The potential consequences include unauthorized access to internal services, data breaches, and the ability for attackers to redirect users to malicious websites.
Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities in your software by using just a manifest file like package-lock.json.
If immediate upgrading is not feasible, implement input validation as a temporary workaround to reduce the risk of exploitation.
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