CVE-2012-1001 in Chyrp
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Chyrp before 2.1.2 and before 2.5 Beta 2 allow remote attackers to inject arbitrary web script or HTML via the (1) content parameter to includes/ajax.php or (2) body parameter to includes/error.php.
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Analysis
by VulDB Data Team • 12/26/2024
The vulnerability identified as CVE-2012-1001 represents a critical cross-site scripting weakness affecting Chyrp content management systems prior to versions 2.1.2 and 2.5 Beta 2. This flaw exists within the web application's input validation mechanisms, specifically in two distinct file paths that handle user-supplied data. The vulnerability manifests when the application fails to properly sanitize or escape user input before rendering it within web pages, creating opportunities for malicious actors to execute arbitrary scripts in the context of other users' browsers.
The technical implementation of this vulnerability occurs through two primary attack vectors that exploit the application's handling of user-provided parameters. The first vector targets the content parameter within the includes/ajax.php file, while the second targets the body parameter in includes/error.php. Both locations demonstrate insufficient input sanitization, allowing attackers to inject malicious HTML or JavaScript code that gets executed when legitimate users view the affected pages. This represents a classic server-side XSS vulnerability where the application acts as an intermediary for malicious code execution, with the vulnerability classified under CWE-79 as improper neutralization of input during web page generation.
The operational impact of this vulnerability extends beyond simple script injection, as it enables attackers to perform various malicious activities including session hijacking, credential theft, and data manipulation. An attacker could craft payloads that steal cookies, redirect users to malicious sites, or even modify content displayed to other users. The vulnerability's persistence across multiple versions indicates a fundamental flaw in the application's security architecture rather than a one-time oversight. This type of vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious web content and T1059.007 for execution through scripting languages, demonstrating how XSS vulnerabilities can serve as entry points for more sophisticated attacks.
Mitigation strategies for CVE-2012-1001 should focus on implementing robust input validation and output encoding mechanisms throughout the application. The most effective immediate solution involves updating to Chyrp versions 2.1.2 or 2.5 Beta 2 where the vulnerability has been patched. Organizations should also implement proper parameter sanitization, employ Content Security Policy headers, and utilize web application firewalls to detect and prevent such attacks. The vulnerability highlights the importance of comprehensive security testing including automated scanning and manual penetration testing to identify similar weaknesses in web applications. Additionally, developers should follow secure coding practices that enforce proper input validation and output encoding, particularly when handling user-supplied data in dynamic web content generation scenarios.