Angular Client-side Template Injection Scanner
This scanner detects the use of Angular Client-side-template-injection in digital assets.
Short Info
Level
High
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
16 days 7 hours
Scan only one
URL
Toolbox
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Angular client-side-template-injection vulnerabilities are typically found in web applications using the AngularJS framework, which is widely used for building dynamic web applications. These applications are developed by various organizations, including enterprises, e-commerce platforms, and social networking sites to provide seamless user interfaces and interactive experiences. Vulnerabilities arise when these applications do not properly validate or sanitize user input, making them susceptible to template injection attacks. These attacks can occur across different versions of Angular, especially if best security practices are not followed during development. Understanding the usage patterns and frameworks of such applications helps to identify the prevalent risks. Efficient testing of these applications ensures security measures are adequate to prevent exploitation.
Server Side Template Injection (SSTI) is a vulnerability that occurs when user inputs are passed directly into template engines without being sanitized. This can lead to arbitrary code execution on the server if the attacker successfully manipulates the template. In the context of Angular client-side applications, SSTI can occur through improper data binding practices where user parameters are integrated into Angular templates. This vulnerability can enable attackers to inject and execute scripts within the Angular application's context, leading to potential data leaks or unauthorized actions. The impact may vary based on the sensitivity of the data handled by the application and how permissions are configured.
Technically, the vulnerability revolves around misconfigured template rendering that allows execution of script code within the application's frontend. Vulnerable endpoints often include input fields or URL parameters that are linked directly to the template rendering logic without proper checks. The payload typically includes characters or expressions that are interpreted and executed by the Angular template engine. Attackers may exploit variables accessible in the template context to execute unauthorized commands or data retrieval operations. Successful exploitation is evident when the injected expression successfully returns manipulated or unexpected results within the application. Such templates often use Angular constructs that should be properly closed and monitored for anomalies.
Exploitation of SSTI vulnerabilities in Angular applications can have severe consequences, including unauthorized code execution and data exfiltration. Attackers may obtain access to sensitive data such as user credentials, session tokens, or personally identifiable information, undermining the application's confidentiality and integrity. Additionally, they may gain unauthorized command execution privileges that can further lead to broader system compromise, data manipulation, or application defacement. The impact may extend to network or database access if the application handles critical operations. Proactively addressing these vulnerabilities reduces potential exploitation risks and maintains the security of user data and the application's operational stability.
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