CVE-2011-3370 in statusnet
Summary
by MITRE
statusnet before 0.9.9 has XSS
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Analysis
by VulDB Data Team • 11/13/2019
The vulnerability identified as CVE-2011-3370 represents a cross-site scripting flaw in statusnet versions prior to 0.9.9, constituting a critical security weakness that allows attackers to execute malicious scripts within the context of a victim's browser. This vulnerability specifically affects the statusnet platform, which is a microblogging software similar to twitter that enables users to share short text messages and interact with others through social networking features. The flaw resides in the application's insufficient input validation and output encoding mechanisms, creating an opportunity for malicious actors to inject harmful scripts into the platform's user interface.
The technical nature of this vulnerability stems from inadequate sanitization of user-supplied data within statusnet's web application layers. When users submit content or interact with the platform, the application fails to properly encode or escape special characters in the output rendering process, allowing malicious script code to persist in the application's response and subsequently execute in the browser of other users who view the affected content. This type of vulnerability maps directly to CWE-79 which defines cross-site scripting as the improper validation of input or inadequate output encoding that enables attackers to inject client-side scripts into web applications. The vulnerability is particularly dangerous because it can be exploited through various vectors including user profiles, status updates, comments, and other interactive elements within the platform.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it creates a persistent threat vector that can be leveraged for more sophisticated attacks. An attacker who successfully exploits this vulnerability can steal session cookies, redirect users to malicious websites, modify content displayed to other users, or even execute commands on behalf of the victim within the context of the statusnet application. This capability aligns with ATT&CK technique T1566 which describes social engineering tactics used to gain initial access to systems, and T1059 which encompasses the execution of malicious code through compromised user sessions. The vulnerability also potentially enables attackers to establish persistent access points within the platform, as compromised user accounts can serve as launching points for further reconnaissance and lateral movement within the affected network.
Mitigation strategies for CVE-2011-3370 should prioritize immediate application of the vendor-provided security patch released with statusnet version 0.9.9, which addresses the input validation and output encoding deficiencies. Organizations should also implement comprehensive input sanitization measures including the adoption of strict output encoding practices for all user-generated content, particularly when rendering data within HTML contexts. The implementation of Content Security Policy headers can provide an additional layer of protection by restricting the sources from which scripts can be loaded, thereby limiting the impact of successful XSS attacks. Furthermore, regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other web applications, as this type of flaw commonly occurs in applications that fail to properly validate or sanitize user input before rendering it in web responses. Security awareness training for administrators and developers can also help prevent similar issues in future development cycles by emphasizing the importance of secure coding practices and proper input/output handling mechanisms.