CVE-2023-7133 in RuoYi
Summary
by MITRE • 12/28/2023
A vulnerability was found in y_project RuoYi 4.7.8. It has been declared as problematic. This vulnerability affects unknown code of the file /login of the component HTTP POST Request Handler. The manipulation of the argument rememberMe with the input falsen3f0malert(1)p86o0 leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-249136.
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Analysis
by VulDB Data Team • 01/20/2024
The vulnerability identified as CVE-2023-7133 represents a critical cross-site scripting flaw within the y_project RuoYi 4.7.8 web application framework. This security weakness resides in the HTTP POST Request Handler component, specifically within the /login endpoint where user authentication requests are processed. The vulnerability stems from inadequate input validation and sanitization mechanisms that fail to properly handle malicious payloads submitted through the rememberMe parameter during the login process. The attack vector exploits the lack of proper output encoding and validation controls, allowing malicious actors to inject arbitrary JavaScript code that executes in the context of other users' browsers. This particular exploit demonstrates the dangerous nature of the vulnerability through the specific payload "falsen3f0malert(1)p86o0" which, when processed by the vulnerable application, triggers a cross-site scripting attack that can be initiated remotely without requiring any authentication credentials. The vulnerability has been publicly disclosed and is actively being used in the wild, making it particularly concerning for organizations running affected versions of the RuoYi framework.
The technical implementation of this XSS vulnerability can be analyzed through the lens of CWE-79, which specifically addresses cross-site scripting flaws in web applications. The vulnerability manifests when the application fails to properly escape or validate user-supplied input before incorporating it into dynamically generated web pages. In this case, the rememberMe parameter in the HTTP POST request handler does not perform adequate sanitization of the input value, allowing the malicious payload to bypass security controls and execute within the victim's browser context. The attack requires only a remote connection to the vulnerable system, making it accessible to attackers regardless of their physical location or network proximity. This remote exploit capability aligns with ATT&CK technique T1566, which describes social engineering attacks that can be executed through web-based vectors, and specifically T1203, which covers exploitation of web application vulnerabilities. The vulnerability's impact extends beyond simple script execution as it can potentially enable session hijacking, credential theft, and further exploitation of the compromised user's privileges within the application.
Organizations utilizing y_project RuoYi 4.7.8 must implement immediate mitigation strategies to protect their systems from this XSS vulnerability. The primary remediation approach involves implementing proper input validation and output encoding mechanisms throughout the application's authentication flow, specifically ensuring that all user-supplied parameters including rememberMe are thoroughly sanitized before processing. Security patches should be applied immediately to upgrade to versions that address this vulnerability, as the public disclosure of the exploit increases the risk of widespread exploitation. Additional protective measures include implementing Content Security Policy headers to limit script execution, deploying web application firewalls to detect and block malicious payloads, and conducting comprehensive security testing to identify similar vulnerabilities in other application components. Organizations should also establish monitoring procedures to detect potential exploitation attempts and ensure that all user sessions are properly validated and secured against unauthorized access. The vulnerability demonstrates the critical importance of input validation and output encoding practices, particularly in authentication components where user input directly influences application behavior and security posture.