CVE-2012-4342 in Menalto
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Gallery 3 before 3.0.4 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 04/24/2019
The vulnerability identified as CVE-2012-4342 represents a critical security flaw in Gallery 3 software versions prior to 3.0.4, specifically affecting the application's handling of user input through unspecified vectors that enable cross-site scripting attacks. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is a fundamental web application security weakness that occurs when an application includes untrusted data in web pages without proper validation or encoding. The affected Gallery 3 platform, which is a popular web-based photo gallery management system, was susceptible to this class of attack due to inadequate input sanitization mechanisms that failed to properly filter or escape malicious script content submitted by users.
The technical exploitation of this vulnerability enables remote attackers to inject arbitrary web scripts or HTML code into the web application, potentially compromising user sessions and enabling various malicious activities. The unspecified vectors suggest that the vulnerability could be triggered through multiple entry points within the Gallery 3 application, including but not limited to user profile fields, comment sections, image metadata, or administrative interfaces. Attackers could leverage this weakness to execute malicious scripts in the context of other users' browsers, potentially leading to session hijacking, credential theft, or the redirection of users to malicious websites. This type of vulnerability aligns with the ATT&CK technique T1566.001 - Phishing, as attackers could craft malicious payloads that would be executed when other users view compromised gallery content.
The operational impact of CVE-2012-4342 extends beyond simple script injection, as it creates a persistent threat vector that could be exploited by attackers to establish footholds within affected environments. Organizations using vulnerable Gallery 3 installations face significant risks including unauthorized data access, potential data corruption, and the possibility of attackers using the compromised system as a launch point for further attacks. The vulnerability's remote nature means that attackers do not require physical access to the system, making it particularly dangerous for web applications that serve public-facing content. The lack of specific vector details in the original description suggests that the flaw may have been present across multiple components of the application, increasing the attack surface and the potential damage that could be inflicted.
Mitigation strategies for this vulnerability should focus on immediate patching to version 3.0.4 or later, which would address the underlying input validation issues that enabled the XSS attacks. Additionally, implementing comprehensive input validation and output encoding mechanisms would provide defense-in-depth measures to prevent similar vulnerabilities from emerging in the future. Organizations should also consider implementing content security policies, regular security assessments, and web application firewalls to protect against exploitation attempts. The remediation process should include thorough testing of the patched application to ensure that the fix does not introduce new issues while maintaining the application's core functionality. Security teams should also conduct comprehensive vulnerability assessments to identify any other potential XSS vulnerabilities within their web applications, as this type of flaw often indicates broader input validation weaknesses that may affect other components of the system.