CVE-2012-0821 in Joomla
Summary
by MITRE
Unspecified vulnerability in Joomla! 1.6.x and 1.7.x before 1.7.4 allows remote attackers to obtain sensitive information via unknown vectors, a different vulnerability than CVE-2012-0819.
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Analysis
by VulDB Data Team • 04/21/2019
The vulnerability identified as CVE-2012-0821 represents a critical information disclosure weakness within Joomla! content management systems version 1.6.x and 1.7.x prior to the 1.7.4 release. This issue falls under the broader category of information exposure vulnerabilities that can provide attackers with unauthorized access to sensitive system data. The vulnerability's classification as unspecified indicates that the exact technical mechanism remains partially obscured, though it clearly represents a significant security gap in the platform's defensive posture. Unlike CVE-2012-0819 which addressed different attack vectors, this vulnerability specifically enabled remote threat actors to extract confidential information without requiring authentication or specific exploitation techniques that would typically be associated with more complex attacks.
The technical nature of this vulnerability suggests a flaw in Joomla platform indicates a fundamental flaw in the codebase that was not properly addressed in the initial affected releases, creating a window of opportunity for attackers to exploit the weakness before the patch was implemented.
The operational impact of CVE-2012-0821 extends beyond simple data exposure, as the information obtained through this vulnerability could enable attackers to craft more targeted attacks against the affected systems. This type of vulnerability can facilitate further exploitation attempts by providing attackers with system architecture details, user account information, or administrative access patterns that would otherwise remain hidden. The remote nature of the attack vector means that exploitation could occur from anywhere on the internet without requiring physical access to the system or local network presence. Organizations running affected Joomla! versions faced significant risk of data breaches, service disruption, and potential complete system compromise if attackers successfully exploited this vulnerability. The vulnerability's existence in major releases also undermined user confidence in the platform's security measures and highlighted the importance of timely patch management.
Security professionals should note that this vulnerability aligns with common attack patterns found in the ATT&CK framework under the information gathering and credential access phases, where adversaries seek to understand system configurations and identify potential entry points. The CWE classification for information disclosure vulnerabilities would likely fall under CWE-200, which covers improper exposure of sensitive information, with potential specific mappings to CWE-540 for exposure of sensitive information in error messages or CWE-312 for exposure of sensitive information through cleartext storage. Organizations should prioritize immediate patch deployment to address this vulnerability, implement network monitoring to detect potential exploitation attempts, and review access controls to minimize the impact of any information that might have been compromised. The vulnerability serves as a reminder of the critical importance of maintaining current security patches and conducting regular vulnerability assessments to identify and remediate similar weaknesses in web applications.