AngularJS Code Content-Security-Policy Bypass Scanner

AngularJS is a popular JavaScript-based open-source front-end web framework primarily maintained by Google. It is used by developers to build dynamic web applications, especially for single-page applications where speed and efficiency are crucial. Companies can utilize AngularJS to create fast and scalable client-side applications with enhanced interactivity and user experiences. As a framework, it provides a comprehensive set of tools for templating, two-way data binding, RESTful API handling, and more. AngularJS is typically used in web development projects that require robust architecture, and its community has created numerous libraries to extend its capabilities. Developers favor it because it promotes best practices, such as dependency injection and testing.

The Content-Security-Policy (CSP) Bypass vulnerability associated with AngularJS allows attackers to execute unauthorized scripts on web applications. This vulnerability occurs when an application's CSP does not adequately protect against certain JavaScript frameworks like AngularJS. By exploiting this weakness, attackers can inject AngularJS code to gain unintended access or alter application behavior. The bypass can lead to data theft, unauthorized actions, or defacement of the website. Attackers typically use payloads to break through CSP restrictions and deploy malicious scripts to target users or systems. Understanding this vulnerability helps developers strengthen CSP implementations and protect AngularJS applications.

Technically, CSP Bypass in AngularJS involves injecting a script that utilizes the AngularJS framework, allowing it to execute beyond intended security controls. Attackers target app endpoints that mistakenly include AngularJS or improperly implement CSP headers in their configurations. Typical vulnerable endpoints are those lacking strict header configurations or using permissive directives. Attackers often replace parts of the query with encoded payloads and make script load requests through vulnerable vectors. The exploitation requires a combination of methods, such as crafting URLs to include elements that the CSP should block but fail to do so due to misconfigurations. The vulnerability relies heavily on the existence of loopholes in CSP rulesets.

Exploiting the CSP Bypass vulnerability can have significant repercussions. It can result in unauthorized script execution, leading to data leaks or manipulation within trusted web pages. Attackers gaining control could deface web pages, insert phishing content, or capture sensitive user information. A bypass can lead to privilege escalation where attackers gain elevated permissions improperly. Another effect might include the distribution of malware through script injection, undermining user trust and website integrity. Consequently, organizations may suffer reputational damage, financial loss, or legal implications stemming from non-compliance with security standards.

REFERENCES

• https://github.com/renniepak/CSPBypass/blob/main/data.tsv