CVE-2009-3798 in Flash Player
Summary
by MITRE
Adobe Flash Player before 10.0.42.34 and Adobe AIR before 1.5.3 might allow attackers to execute arbitrary code via unspecified vectors that trigger memory corruption.
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Analysis
by VulDB Data Team • 08/28/2021
Adobe Flash Player versions prior to 10.0.42.34 and Adobe AIR versions before 1.5.3 contained critical memory corruption vulnerabilities that enabled remote code execution attacks. These flaws existed within the multimedia framework's handling of malformed or specially crafted content, creating exploitable conditions in memory management processes. The vulnerabilities stemmed from insufficient input validation and memory safety mechanisms within the player's runtime environment, allowing attackers to manipulate memory structures through carefully constructed malicious content. The unspecified vectors referenced in the CVE description indicate that multiple attack pathways could be exploited, potentially including malformed SWF files, network-based content delivery, or embedded multimedia elements within web pages. This class of vulnerability falls under CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write operations, both of which are common in memory corruption exploits. The attack surface was particularly broad given Flash Player's widespread deployment across web browsers and desktop applications, making it a prime target for attackers seeking persistent remote access. These vulnerabilities aligned with ATT&CK technique T1059.007 for command and scripting interpreter, as successful exploitation would allow attackers to execute arbitrary code with the privileges of the Flash Player process. The impact extended beyond simple code execution, as attackers could leverage these flaws to establish persistent backdoors, escalate privileges, or deploy additional malware components. Organizations running affected versions faced significant risk due to the high exploitability of these memory corruption flaws, particularly in environments where users accessed untrusted web content. The vulnerabilities were particularly concerning because they could be triggered through normal web browsing activities without requiring user interaction beyond visiting malicious websites. Remediation efforts focused on immediate patch deployment for both Flash Player and AIR runtime environments, with security teams implementing network-based controls to filter suspicious content and monitoring for exploitation attempts. The affected versions represented a critical security gap that required comprehensive patch management programs and security awareness training to prevent successful exploitation. These vulnerabilities highlighted the inherent risks of complex multimedia frameworks and underscored the importance of robust memory safety mechanisms in widely deployed software components. The exploitation of these flaws demonstrated the continued relevance of memory corruption attacks in the cybersecurity landscape, particularly in legacy software environments where patching cycles were extended. Security researchers noted that similar patterns had been observed in other multimedia and runtime environments, emphasizing the need for stronger input validation and memory protection mechanisms in software development practices. Organizations needed to implement layered security approaches including web application firewalls, content filtering solutions, and regular vulnerability assessments to address the exposure created by these unpatched versions. The widespread adoption of Flash Player made these vulnerabilities particularly dangerous, as they could be exploited across numerous platforms and applications without requiring specialized knowledge of specific target systems.