CVE-2011-4865 in WBlog
Summary
by MITRE
The Tencent WBlog (com.tencent.WBlog) 3.3.1 and MicroBlogPad 1.4.0 applications for Android do not properly protect data, which allows remote attackers to read or modify message drafts and search keywords via a crafted application.
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Analysis
by VulDB Data Team • 02/14/2019
The vulnerability identified as CVE-2011-4865 affects Tencent WBlog version 3.3.1 and MicroBlogPad version 1.4.0 Android applications, representing a critical data protection flaw that compromises user privacy and system integrity. This issue stems from insufficient data protection mechanisms within these mobile applications, creating a pathway for malicious actors to exploit the weakness and gain unauthorized access to sensitive user information. The vulnerability specifically targets message drafts and search keywords stored within the applications, which are typically considered private user data that should remain protected from unauthorized access. The flaw exists due to improper implementation of data isolation and access controls within the mobile application framework, allowing a crafted malicious application to intercept or manipulate these data elements.
The technical exploitation of this vulnerability occurs through the manipulation of Android application permissions and data sharing mechanisms. Attackers can leverage the lack of proper data protection measures to create a malicious application that can access the vulnerable applications' data storage areas. This typically involves exploiting the Android operating system's inter-process communication mechanisms and data sharing capabilities to read or modify stored drafts and search terms without proper authentication or authorization. The vulnerability falls under the category of insufficient data protection as defined by CWE-311, which specifically addresses the absence of proper data encryption or protection mechanisms. The weakness creates a direct pathway for data exposure that violates fundamental mobile security principles and user privacy expectations.
The operational impact of this vulnerability extends beyond simple data theft, encompassing potential privacy violations and user data compromise. Message drafts contain potentially sensitive personal information, communications, and private thoughts that users expect to remain confidential within the application environment. Search keywords may reveal user interests, behaviors, and communication patterns that could be exploited for targeted attacks or social engineering. The ability to modify message drafts allows attackers to inject malicious content or alter user communications, potentially leading to more severe consequences including social manipulation, identity theft, or credential compromise. This vulnerability directly impacts the security posture of users who rely on these applications for personal or professional communication, creating a persistent threat to their digital privacy and security.
Mitigation strategies for this vulnerability require immediate attention from both application developers and end users. Application developers must implement proper data protection mechanisms including secure data storage practices, appropriate access controls, and robust encryption for sensitive user data. The applications should enforce strict data isolation between different processes and implement proper permission handling to prevent unauthorized access to stored information. Users should avoid installing untrusted applications and regularly review application permissions to ensure that only necessary access is granted. Organizations should implement mobile device management policies that restrict the installation of potentially malicious applications and monitor for suspicious activity. The vulnerability highlights the importance of following security best practices such as those outlined in the OWASP Mobile Security Project and aligns with ATT&CK technique T1552 for data hijacking and T1070 for indicator removal, emphasizing the need for comprehensive mobile security frameworks that address data protection at all levels of the application stack.