CVE-2025-25331 in LianJia
Summary
by MITRE • 02/27/2025
An issue in Beitatong Technology LianJia iOS 9.83.50 allows attackers to access sensitive user information via supplying a crafted link.
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Analysis
by VulDB Data Team • 06/01/2025
The vulnerability identified as CVE-2025-25331 represents a critical security flaw within the Beitatong Technology LianJia iOS application version 9.83.50. This issue stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data when processing crafted links. The vulnerability manifests when the application processes maliciously constructed URLs or deep links without sufficient security checks, potentially allowing unauthorized access to sensitive user data. Such flaws typically arise from insufficient sanitization of input parameters that are directly incorporated into application logic or data retrieval processes, creating opportunities for attackers to manipulate application behavior through carefully crafted payloads.
The technical implementation of this vulnerability involves the application's failure to validate or sanitize URL parameters, query strings, or deep link structures that may contain malicious content. When users click on crafted links, the application processes these inputs without proper validation, potentially leading to information disclosure or unauthorized access to user accounts, personal data, or session tokens. This type of vulnerability aligns with CWE-20, which describes improper input validation, and falls under the broader category of insecure data handling within mobile applications. The flaw likely exists in the application's URL handling or deep linking mechanism where user-supplied parameters are directly processed without proper sanitization or validation checks.
The operational impact of CVE-2025-25331 extends beyond simple data exposure, potentially enabling attackers to perform session hijacking, account takeovers, or unauthorized data access operations. Mobile applications that process external links without proper validation create attack surfaces where malicious actors can exploit the trust relationship between the application and its users. This vulnerability particularly affects the iOS implementation of the LianJia platform, which may be used for real estate transactions, property management, and user account interactions where sensitive personal information, financial data, and location details are routinely handled. The attack vector through crafted links represents a sophisticated approach that leverages social engineering elements to deliver malicious payloads to unsuspecting users.
Security professionals should consider implementing comprehensive input validation and sanitization measures to address this vulnerability. The recommended mitigations include implementing strict URL parameter validation, employing secure coding practices for deep link processing, and establishing proper input sanitization routines that filter out potentially malicious content. Organizations should also implement robust session management mechanisms and consider deploying web application firewalls or similar protective measures to monitor and filter suspicious link traffic. Additionally, regular security testing including penetration testing and vulnerability assessments should be conducted to identify similar weaknesses in mobile application architectures. This vulnerability demonstrates the importance of secure coding practices and proper input validation as outlined in the OWASP Mobile Top 10 and aligns with ATT&CK technique T1059.007 for command and scripting interpreter, specifically in the context of mobile application exploitation. The remediation process should involve thorough code review of all URL handling components and implementation of automated security testing tools to prevent similar issues in future releases.