CVE-2012-0669 in QuickTime
Summary
by MITRE
Buffer overflow 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 movie file with Sorenson encoding.
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Analysis
by VulDB Data Team • 03/24/2021
The vulnerability identified as CVE-2012-0669 represents a critical buffer overflow flaw in Apple QuickTime software versions prior to 7.7.2 on Windows operating systems. This security weakness specifically manifests when the media player processes movie files encoded with Sorenson technology, creating a pathway for malicious actors to exploit the application's memory handling mechanisms. The flaw stems from insufficient input validation and bounds checking within the QuickTime player's handling of Sorenson-encoded media files, allowing attackers to craft specially designed movie files that trigger memory corruption during playback operations.
The technical implementation of this vulnerability involves the manipulation of buffer boundaries within QuickTime's media decoding routines. When the application encounters a crafted Sorenson-encoded movie file, the improper memory allocation and handling causes data to overflow into adjacent memory regions, potentially overwriting critical program structures or executable code. This buffer overflow condition creates an opportunity for remote code execution, as attackers can strategically place malicious code within the overflowed buffer space and redirect program execution flow to their payload. The vulnerability's classification as a stack-based buffer overflow aligns with CWE-121, which describes buffer overflow conditions where insufficient bounds checking allows attackers to overwrite stack memory.
From an operational perspective, this vulnerability poses significant risks to organizations and individual users who rely on QuickTime for media playback. The remote exploitation capability means that attackers can deliver malicious payloads through various vectors including email attachments, web downloads, or compromised websites without requiring local access to the target system. The potential for both remote code execution and denial of service makes this vulnerability particularly dangerous in enterprise environments where QuickTime might be used across multiple systems. The impact extends beyond individual user devices to potentially compromise entire network infrastructures, especially when considering that many organizations still maintain legacy systems running vulnerable QuickTime versions.
The exploitation of CVE-2012-0669 aligns with several tactics described in the MITRE ATT&CK framework, particularly those related to initial access through malicious files and privilege escalation via code execution. Attackers leveraging this vulnerability would typically follow a reconnaissance phase to identify systems running vulnerable QuickTime versions, followed by delivery of crafted movie files designed to trigger the buffer overflow. The vulnerability's presence in Windows environments makes it particularly relevant to ATT&CK technique T1203, which covers legitimate program execution through fileless malware delivery methods. Organizations implementing security controls should consider this vulnerability within their threat modeling exercises, as it represents a persistent risk that could be exploited by both sophisticated nation-state actors and less sophisticated threat groups.
Mitigation strategies for CVE-2012-0669 primarily focus on immediate remediation through software updates and patch management. Apple released QuickTime 7.7.2 to address this vulnerability, which included enhanced input validation and improved memory handling for Sorenson-encoded media files. Organizations should implement comprehensive patch management processes to ensure all systems running QuickTime receive the necessary updates promptly. Additional protective measures include network segmentation to limit exposure, application whitelisting to prevent execution of unauthorized QuickTime versions, and regular security assessments to identify systems running vulnerable software. Security monitoring should specifically track for suspicious QuickTime-related network activity and file execution patterns that might indicate exploitation attempts. The vulnerability also underscores the importance of maintaining up-to-date security patches across all media playback applications and highlights the need for regular vulnerability assessments to identify similar weaknesses in legacy software systems.