CVE-2012-4176 in Shockwave Player
Summary
by MITRE
Array index error in Adobe Shockwave Player before 11.6.8.638 allows attackers to execute arbitrary code via unspecified vectors.
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Analysis
by VulDB Data Team • 12/04/2024
The vulnerability identified as CVE-2012-4176 represents a critical array index error within Adobe Shockwave Player versions prior to 11.6.8.638, creating a significant security risk that adversaries can exploit to achieve arbitrary code execution. This flaw exists in the player's handling of array data structures and demonstrates the classic characteristics of a buffer overflow vulnerability that can be leveraged for remote code execution. The unspecified vectors mentioned in the description suggest that the vulnerability can be triggered through multiple attack pathways, potentially including malicious web content, crafted Shockwave files, or other media that utilizes the affected player components. Such vulnerabilities are particularly dangerous because they can be exploited without user interaction in many scenarios, making them prime targets for automated exploitation campaigns.
The technical nature of this vulnerability places it squarely within the realm of software security flaws that can be categorized under CWE-129, which specifically addresses insufficient validation of array indices. This weakness occurs when software fails to properly validate array bounds before accessing array elements, allowing attackers to manipulate memory access patterns. The Shockwave Player's processing of multimedia content and its interaction with web browsers create multiple potential entry points where malicious actors can inject crafted data that triggers the index error. When the player attempts to access memory locations beyond the allocated array boundaries, it can cause unpredictable behavior including memory corruption that attackers can leverage to execute malicious code with the privileges of the affected application.
The operational impact of CVE-2012-4176 extends far beyond simple code execution, as it provides attackers with a pathway to compromise entire systems through the Shockwave Player's widespread deployment across enterprise networks and consumer environments. This vulnerability affects not only individual user systems but also enterprise infrastructure where Shockwave content may be embedded in corporate training materials, internal applications, or legacy web portals. The attack surface is particularly broad given that Shockwave Player was commonly installed on Windows systems and supported various multimedia formats that were prevalent in the early 2010s. Organizations using outdated versions of Shockwave Player face significant risk of exploitation through drive-by download attacks, where simply visiting a compromised website can trigger the vulnerability without any user interaction, aligning with ATT&CK technique T1193 for exploitation of remote services.
Mitigation strategies for CVE-2012-4176 primarily focus on immediate patch deployment and application of security updates provided by Adobe, which addressed the underlying array index validation issues. System administrators should prioritize updating Shockwave Player to version 11.6.8.638 or later, as this release contains the necessary fixes to prevent the array index error from being exploited. Additional protective measures include implementing browser security policies that disable Shockwave content, removing unused Shockwave Player installations from systems, and deploying network-based intrusion detection systems that can identify exploitation attempts targeting this vulnerability. Organizations should also consider implementing application whitelisting policies that restrict execution of Shockwave Player unless explicitly authorized, as well as monitoring for unusual network activity that might indicate exploitation attempts. The vulnerability serves as a reminder of the importance of maintaining up-to-date software and the risks associated with legacy multimedia players that may not receive continued security support, particularly when they are installed on systems where they are not actively used.