CVE-2017-0681 in Android
Summary
by MITRE
A remote code execution vulnerability in the Android media framework. Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37208566.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 12/31/2020
The vulnerability CVE-2017-0681 represents a critical remote code execution flaw within the Android media framework that affects multiple versions of the operating system from Android 4.4.4 through 7.1.2. This vulnerability resides in the media server component responsible for processing multimedia content and handling various media file formats. The issue stems from improper input validation and memory handling within the media framework's parsing logic, creating a pathway for malicious actors to execute arbitrary code on affected devices. The vulnerability specifically impacts the way the system processes certain media files, particularly those containing crafted malicious payloads that exploit buffer overflows or memory corruption issues. This flaw demonstrates the inherent risks associated with complex multimedia processing components that must handle diverse and untrusted input formats from various sources. The Android media framework serves as a critical interface for handling audio and video content, making it an attractive target for attackers seeking to compromise mobile devices. The vulnerability's presence across such a wide range of Android versions indicates a fundamental flaw in the media processing pipeline that was not adequately addressed in the affected releases. This issue falls under the CWE-121 category of stack-based buffer overflow, where insufficient bounds checking allows attackers to overwrite memory regions and potentially execute malicious code. The vulnerability's exploitation requires minimal user interaction, often allowing remote execution through malicious media files delivered via email attachments, web downloads, or compromised applications.
The technical exploitation of CVE-2017-0681 occurs when the Android media framework processes specially crafted media files that contain malformed data structures. Attackers can manipulate the parsing logic by injecting malicious payloads that cause buffer overflows within the media server's memory management routines. The vulnerability leverages the system's trust in media file content without adequate validation, allowing attackers to overwrite critical memory locations including return addresses and function pointers. This memory corruption enables attackers to redirect program execution flow and inject their own code into the media server process. The attack vector typically involves sending malicious media files through various communication channels where the target device automatically processes them, often without user intervention. The media framework's design requires it to parse and decode various formats including mp4, mpeg, and other common multimedia containers, making the attack surface particularly broad. The vulnerability's exploitation can be achieved through techniques such as return-oriented programming or direct code injection, depending on the specific memory layout and system protections in place. The flaw demonstrates the challenges in securing multimedia processing systems where complex parsers must handle diverse input formats while maintaining robust security boundaries. The vulnerability's impact is amplified by the fact that many applications rely on the Android media framework for content processing, creating cascading effects that can compromise the entire system.
The operational impact of CVE-2017-0681 extends beyond individual device compromise to potentially affect large-scale deployments and enterprise environments where Android devices are extensively used. Organizations with mobile device management systems face significant risks as attackers can exploit this vulnerability to gain unauthorized access to corporate data, install malicious applications, or establish persistent backdoors on affected devices. The vulnerability's remote execution capability means that attackers can compromise devices from anywhere in the world without requiring physical access or user interaction beyond the initial delivery of malicious content. Security professionals must consider the implications of this vulnerability in the context of the MITRE ATT&CK framework, particularly in the execution and privilege escalation phases where attackers can leverage such flaws to gain system-level access. The vulnerability affects both consumer and enterprise Android deployments, making it a significant concern for mobile security teams. The widespread adoption of affected Android versions means that the potential attack surface is enormous, encompassing billions of devices worldwide. The vulnerability's exploitation can lead to complete device compromise, data exfiltration, and the installation of persistent malware that can maintain access even after device reboots. Organizations must also consider the indirect impacts such as reputational damage, regulatory compliance issues, and potential legal ramifications from security breaches involving affected devices. The vulnerability's presence in multiple Android versions creates challenges for security teams attempting to maintain consistent protection across diverse device fleets, requiring extensive patch management and monitoring efforts.
Mitigation strategies for CVE-2017-0681 focus primarily on applying the security patches released by Google as part of their regular Android security updates. Organizations should implement immediate patch deployment across all affected Android devices, prioritizing critical systems and high-risk environments. The security update addresses the underlying memory handling issues in the media framework by implementing proper bounds checking and input validation mechanisms. Mobile device management solutions should be configured to automatically apply these security patches to ensure comprehensive protection across all deployed devices. Administrators should also consider implementing network-level controls to block suspicious media file downloads and restrict access to known malicious sources. The vulnerability highlights the importance of secure coding practices and the need for regular security assessments of system components that handle untrusted input. Organizations should also implement monitoring solutions to detect potential exploitation attempts and establish incident response procedures for handling security breaches. The mitigation approach should include regular security audits of mobile applications and content delivery systems to prevent the introduction of malicious media files. Additionally, user education programs should emphasize the risks of downloading media content from untrusted sources and the importance of keeping devices updated with the latest security patches. The vulnerability underscores the necessity of maintaining up-to-date security measures and the importance of proactive security management in mobile environments where the attack surface is constantly evolving.