CVE-2021-4049 in livehelperchat
Summary
by MITRE • 12/07/2021
livehelperchat is vulnerable to Cross-Site Request Forgery (CSRF)
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 12/10/2021
The livehelperchat application presents a significant security vulnerability classified as Cross-Site Request Forgery (CSRF) under CVE-2021-4049. This vulnerability stems from the application's insufficient protection mechanisms against unauthorized commands executed on behalf of authenticated users. The flaw allows malicious actors to exploit the trust relationship between the application and its users, potentially enabling unauthorized actions within the chat system's administrative functions.
The technical implementation of this CSRF vulnerability occurs when the application fails to validate the origin of requests or implement proper anti-CSRF tokens in critical operations. When users navigate to malicious websites or click on compromised links while authenticated to livehelperchat, attackers can leverage this weakness to perform actions such as modifying user accounts, altering chat configurations, or executing administrative commands without the user's knowledge or consent. The vulnerability specifically affects the application's handling of state-changing requests that should require explicit user confirmation or token validation.
This CSRF flaw operates at the application layer and can be categorized under CWE-352, which specifically addresses Cross-Site Request Forgery vulnerabilities. The operational impact extends beyond simple data manipulation, as successful exploitation could lead to complete compromise of the chat system's administrative controls. Attackers could potentially gain persistent access to user communications, modify system configurations, or even escalate privileges within the application environment. The vulnerability affects all versions of livehelperchat that lack proper CSRF protection mechanisms, making it particularly concerning for organizations relying on this chat platform for customer support or internal communications.
The attack surface for this vulnerability is particularly broad given that CSRF attacks can be delivered through various vectors including email attachments, compromised websites, or malicious advertisements. The lack of proper token validation in the application's request processing pipeline creates a persistent risk for authenticated users who may unknowingly execute malicious commands. Organizations using livehelperchat should consider implementing comprehensive CSRF protection measures including the use of anti-CSRF tokens, proper request origin validation, and implementing the principle of least privilege for administrative functions. The vulnerability also aligns with ATT&CK technique T1566 which covers social engineering through malicious links and attachments, making it particularly dangerous in environments where users may encounter compromised content.
Mitigation strategies should include immediate implementation of anti-CSRF tokens for all state-changing operations, proper validation of request origins, and ensuring that all administrative functions require explicit user confirmation. Organizations should also consider implementing Content Security Policy headers and regular security audits of web applications to prevent similar vulnerabilities. The fix requires modifying the application code to ensure that every critical operation includes proper CSRF token validation before execution, preventing unauthorized command execution even when users are authenticated to the system.