CVE-2022-0087 Scanner

Keystone is a powerful Node.js content management framework used by developers for building applications fast and efficiently. This software is prominently utilized by small to medium-sized enterprises that require a robust content platform with easy manageability. Keystone's flexibility allows for customization, making it a popular choice for web developers creating tailored solutions for varied client needs. It supports modern workflows and integrations, which are essential for today's dynamic web applications. The continual enhancements and community contributions ensure that Keystone remains a relevant and functional choice for developers worldwide. Overall, the product’s adaptability and ease of use make it a preferred solution in the digital content management landscape.

The Cross-Site Scripting (XSS) vulnerability is a common web security issue that allows attackers to inject malicious scripts into webpages viewed by other users. In the case of Keystone, the vulnerability exists in the login page where the "from=" parameter in the URL can be manipulated. If successfully exploited, this vulnerability could allow attackers to execute arbitrary scripts in the context of users' browsers. This can lead to session hijacking, redirection to malicious websites, or phishing attacks without the users' knowledge. Understanding and promptly addressing such vulnerabilities is critical to maintaining secure web application environments. Ensuring user safety and preserving the integrity of the web application is paramount when handling such security issues.

In Keystone, the vulnerable endpoint resides at the login page's URL with the "from=" parameter. This parameter can be targeted to perform open redirect and further escalate to reflected XSS. Attackers may craft a malicious URL fetching user data or cookies by embedding a script. The system can unintentionally execute scripts crafted in URLs that users might perceive as legitimate, leading to unintended data breaches or malicious actions. The vulnerable parameter provides a gateway to compromise the security of user sessions by deploying JavaScript in the client's context. Thus, identifying such risk elements and mitigating the vulnerability is critical to avoiding potential exploits.

Exploiting the Cross-Site Scripting vulnerability in Keystone may have several harmful effects. One of the primary risks is the theft of session cookies, which could allow an attacker to impersonate the user and gain unauthorized access to their account. Additionally, users could be redirected to phishing sites designed to harvest credentials or personal information. The malicious scripts could manipulate the content presented to users, mislead them, or trigger unwanted actions on their behalf. If left unpatched, this vulnerability could tarnish the application's credibility and lead to trust issues among its users. Consequently, it is crucial to address such vulnerabilities efficiently to protect both users and application data.

REFERENCES

• https://huntr.com/bounties/c9d7374f-2cb9-4bac-9c90-a965942f413e
• https://nvd.nist.gov/vuln/detail/CVE-2022-0087
• https://github.com/keystonejs/keystone/commit/96bf833a23b1a0a5d365cf394467a943cc481b38