CVE-2011-1099 in Quick Polls
Summary
by MITRE
Multiple directory traversal vulnerabilities in FocalMedia.Net Quick Polls before 1.0.2 allow remote attackers to (1) read arbitrary files via a .. (dot dot) in the p parameter in a preview action to index.php, or (2) delete arbitrary files via a .. (dot dot) in the p parameter in a delete action to index.php.
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Analysis
by VulDB Data Team • 01/12/2025
The vulnerability identified as CVE-2011-1099 represents a critical directory traversal flaw in FocalMedia.Net Quick Polls version 1.0.1 and earlier. This security weakness stems from inadequate input validation within the application's handling of user-supplied parameters, specifically the 'p' parameter used in both preview and delete operations within the index.php file. The vulnerability exposes the system to remote code execution and data compromise through manipulation of directory path references.
The technical implementation of this flaw allows attackers to exploit the application's failure to properly sanitize user input by utilizing directory traversal sequences such as '..'. When the application processes these sequences in the p parameter during preview operations, it can be coerced into reading arbitrary files from the server's file system. Similarly, during delete operations, the same vulnerability enables unauthorized file deletion, potentially compromising system integrity and data availability. This type of vulnerability falls under CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks.
The operational impact of CVE-2011-1099 extends beyond simple file access, as it provides attackers with the capability to potentially escalate privileges and gain deeper system access. Remote attackers can leverage this vulnerability to read sensitive configuration files, database credentials, or application source code, which may reveal additional attack vectors. The delete functionality poses an even greater risk as it can lead to complete system compromise through file corruption or removal of critical system components. This vulnerability aligns with ATT&CK technique T1059, which covers command and scripting interpreter, as attackers may use the read capability to gather information needed for further exploitation.
Security professionals should recognize this vulnerability as part of the broader category of input validation failures that continue to plague web applications. The flaw demonstrates how insufficient parameter sanitization can create persistent security risks in content management systems and web applications. Organizations using FocalMedia.Net Quick Polls should immediately implement the vendor-provided patch version 1.0.2, which addresses the directory traversal issues through proper input validation and parameter sanitization. Additionally, implementing web application firewalls, restricting file system permissions, and conducting regular security assessments can help mitigate the risk of exploitation. The vulnerability highlights the importance of following secure coding practices and adhering to the principle of least privilege when handling user input in web applications.