CVE-2012-0666 in QuickTime
Summary
by MITRE
Stack-based buffer overflow in the plugin in Apple QuickTime before 7.7.2 on Windows allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted QTMovie object.
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Analysis
by VulDB Data Team • 03/24/2021
The vulnerability identified as CVE-2012-0666 represents a critical stack-based buffer overflow flaw within Apple QuickTime's plugin component for Windows systems. This vulnerability affects versions prior to 7.7.2 and presents a significant security risk that can be exploited by remote attackers to gain unauthorized system access or disrupt service availability. The flaw specifically resides in how the QuickTime plugin handles crafted QTMovie objects, creating an exploitable condition that can lead to arbitrary code execution or application crashes. The vulnerability demonstrates the classic characteristics of a stack overflow where insufficient bounds checking allows an attacker to overwrite adjacent memory locations on the program stack, potentially leading to complete system compromise. This type of vulnerability falls under the CWE-121 category of stack-based buffer overflow, which is a well-documented and frequently exploited weakness in software applications. The ATT&CK framework categorizes this vulnerability under the T1059.007 technique for abuse of system commands and T1068 for exploit for privilege escalation, highlighting its potential for both remote code execution and system compromise.
The technical implementation of this vulnerability occurs when the QuickTime plugin processes maliciously crafted QTMovie objects that contain oversized or malformed data structures. During the parsing process, the plugin fails to properly validate the size and content of incoming data, allowing an attacker to overflow the allocated stack buffer and overwrite critical memory segments including return addresses and function pointers. This overflow condition enables attackers to redirect program execution flow to malicious code injected into the stack, effectively achieving arbitrary code execution on the target system. The vulnerability is particularly dangerous because it operates within the context of a widely deployed multimedia plugin that runs with the privileges of the user who views the malicious content, potentially allowing attackers to execute code with the same privileges as the compromised user. The attack vector requires remote exploitation through web browsers or other applications that utilize the QuickTime plugin, making it accessible to attackers without requiring local system access or physical presence.
The operational impact of CVE-2012-0666 extends beyond simple application crashes to encompass full system compromise and persistent access capabilities for threat actors. When exploited successfully, this vulnerability allows attackers to execute malicious code with the privileges of the QuickTime plugin process, which typically runs with user-level permissions but can potentially be leveraged for privilege escalation attacks. The vulnerability affects a broad range of Windows systems that have Apple QuickTime installed, including various versions of Windows XP, Vista, 7, and 8, making it particularly dangerous in enterprise environments where multimedia applications are commonly used. Organizations running affected versions of QuickTime are vulnerable to targeted attacks that could result in data theft, system takeover, or deployment of additional malware. The vulnerability also impacts web-based exploitation scenarios where attackers can craft malicious web pages that automatically trigger the exploit when viewed in a browser with the vulnerable QuickTime plugin installed. This makes the vulnerability particularly attractive to cybercriminals and nation-state actors who seek to leverage it for large-scale attacks or targeted compromises.
Mitigation strategies for CVE-2012-0666 focus on immediate remediation through software updates and comprehensive system hardening measures. The most effective immediate solution is upgrading to Apple QuickTime version 7.7.2 or later, which contains the necessary patches to address the buffer overflow condition. System administrators should prioritize patch deployment across all affected systems and verify that the update has been successfully applied. Additional protective measures include implementing browser security configurations that disable or restrict QuickTime plugin functionality, particularly in environments where the plugin is not essential for business operations. Network-level protections such as intrusion detection systems can help detect exploitation attempts by monitoring for known malicious patterns associated with this vulnerability. Security professionals should also consider implementing application whitelisting policies that restrict execution of unauthorized QuickTime components and establish monitoring protocols for unusual system behavior that might indicate exploitation attempts. Organizations should conduct thorough vulnerability assessments to identify all systems running affected QuickTime versions and prioritize remediation efforts based on risk exposure and critical business functions. The vulnerability also highlights the importance of maintaining up-to-date security patches across all software components, particularly multimedia plugins that are frequently targeted by attackers due to their widespread deployment and complex functionality.