CVE-2022-22112 in Daybyday
Summary
by MITRE • 01/13/2022
In DayByDay CRM, versions 1.1 through 2.2.1 (latest) suffer from an application-wide Client-Side Template Injection (CSTI). A low privileged attacker can input template injection payloads in the application at various locations to execute JavaScript on the client browser.
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Analysis
by VulDB Data Team • 01/16/2022
The vulnerability identified as CVE-2022-22112 affects DayByDay CRM versions 1.1 through 2.2.1, representing a critical client-side template injection flaw that impacts the entire application surface. This vulnerability falls under the CWE-79 category of Cross-Site Scripting and specifically manifests as a Client-Side Template Injection, which allows attackers to inject malicious JavaScript code that executes within the victim's browser context. The flaw exists across multiple input points within the application, making it particularly dangerous as it provides attackers with multiple vectors for exploitation without requiring elevated privileges.
The technical implementation of this vulnerability stems from inadequate input sanitization and improper template rendering mechanisms within the DayByDay CRM application. When users submit data through various application interfaces, the system fails to properly escape or validate template variables before rendering them in client-side contexts. This allows an attacker to inject template syntax that gets processed by the client-side template engine, resulting in arbitrary JavaScript execution. The vulnerability is particularly concerning because it operates entirely on the client-side, meaning that even if server-side protections are in place, the injected payloads can still execute within the victim's browser environment.
From an operational impact perspective, this vulnerability enables a low-privileged attacker to perform a wide range of malicious activities including but not limited to session hijacking, credential theft, data exfiltration, and browser-based attacks. The attacker can leverage this vulnerability to steal user sessions, capture sensitive information entered into the CRM, or redirect users to malicious websites. The widespread nature of the vulnerability across multiple application locations means that the attack surface is extensive, potentially allowing an attacker to compromise any user who interacts with the vulnerable application. This client-side execution capability also makes it difficult to detect through traditional network monitoring as the malicious activity occurs within the user's browser environment rather than through network traffic.
The mitigation strategies for CVE-2022-22112 should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's client-side code. Organizations should enforce strict template escaping rules and ensure that all user-supplied data is properly sanitized before being rendered in any template context. The implementation of Content Security Policy (CSP) headers can provide additional protection by restricting the execution of inline scripts and limiting the sources from which scripts can be loaded. Additionally, regular security code reviews and automated static analysis should be implemented to identify similar vulnerabilities in other parts of the application. The vulnerability aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter: JavaScript, and represents a significant risk to the confidentiality and integrity of the CRM system's data and user sessions.