CVE-2008-4820 in Flash Player
Summary
by MITRE
Unspecified vulnerability in the Flash Player ActiveX control in Adobe Flash Player 9.0.124.0 and earlier on Windows allows attackers to obtain sensitive information via unknown vectors.
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Analysis
by VulDB Data Team • 08/20/2019
The vulnerability identified as CVE-2008-4820 represents a critical information disclosure weakness within Adobe Flash Player's ActiveX control implementation on Windows operating systems. This flaw exists in versions 9.0.124.0 and earlier, indicating a long-standing security gap that could have been exploited by malicious actors for extended periods. The unspecified nature of the vulnerability vectors suggests that attackers could potentially leverage multiple attack surfaces to access sensitive data, making the threat landscape particularly concerning for organizations relying on legacy Flash Player implementations.
The technical exploitation of this vulnerability occurs through the Flash Player ActiveX control component which integrates deeply with the Windows operating system architecture. ActiveX controls operate with elevated privileges within the browser environment and can access system resources directly, creating potential pathways for unauthorized data retrieval. The vulnerability enables attackers to obtain sensitive information through mechanisms that remain unspecified in the original CVE description, though such information disclosure vulnerabilities typically involve memory corruption issues, improper access controls, or insecure data handling practices within the ActiveX control's code execution paths.
From an operational perspective, this vulnerability poses significant risks to enterprise environments where legacy Flash content remains in use for critical applications or web-based services. Organizations may have deployed Flash Player components for years without updating to patched versions, creating persistent attack vectors that adversaries could exploit to extract confidential information from targeted systems. The Windows-specific nature of the vulnerability means that attack surfaces are limited to Windows environments, but this also implies that organizations with mixed operating system environments might still be vulnerable if they maintain Flash Player components on Windows systems. The lack of specific exploitation details in the CVE description suggests that this vulnerability was likely a complex issue requiring sophisticated exploitation techniques that could bypass standard security controls.
Security professionals should note that this vulnerability aligns with CWE-200, which describes improper information exposure, and could potentially map to ATT&CK techniques involving credential access and defense evasion. The exploitation of such vulnerabilities often requires social engineering components or targeted attacks against specific organizations, as the attack surface is typically limited to systems that have not updated to patched versions. Organizations must prioritize immediate remediation efforts to upgrade to patched Flash Player versions, implement network segmentation to limit potential attack vectors, and conduct thorough vulnerability assessments to identify any remaining instances of vulnerable Flash Player installations. The remediation process should include comprehensive testing of updated systems to ensure that the patched versions do not introduce compatibility issues with existing legacy applications that depend on Flash Player functionality.