CVE-2018-4145 in iCloud
Summary
by MITRE
Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 11.3, tvOS 11.3, watchOS 4.3, Safari 11.1, iTunes 12.7.4 for Windows, iCloud for Windows 7.4.
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Analysis
by VulDB Data Team • 08/22/2023
The vulnerability identified as CVE-2018-4145 represents a critical memory corruption issue that affected multiple Apple operating systems and applications. This flaw emerged from inadequate memory management practices within Apple's software ecosystem, specifically targeting versions prior to the security updates released in iOS 11.3, tvOS 11.3, watchOS 4.3, Safari 11.1, iTunes 12.7.4 for Windows, and iCloud for Windows 7.4. The vulnerability falls under the category of memory safety issues that can lead to arbitrary code execution and system compromise. According to CWE-125, this vulnerability is classified as an out-of-bounds read condition, which represents a fundamental flaw in memory handling that can be exploited by malicious actors to gain unauthorized access to affected systems.
The technical exploitation of CVE-2018-4145 occurs when applications process malformed input or encounter unexpected memory states during normal operation. Memory corruption vulnerabilities of this nature typically arise from insufficient bounds checking, improper memory allocation, or failure to validate input parameters before processing. Attackers can leverage these flaws to manipulate memory contents, potentially leading to privilege escalation, information disclosure, or complete system compromise. The vulnerability's impact extends across multiple platforms due to shared codebases and similar memory management approaches used in Apple's ecosystem. This cross-platform nature makes the vulnerability particularly dangerous as it can be exploited across different device types and operating environments.
From an operational perspective, the exploitation of CVE-2018-4145 poses significant risks to enterprise environments and individual users alike. The vulnerability could enable attackers to execute arbitrary code with the privileges of the affected application, potentially leading to full system compromise. Organizations running affected versions of Apple software face increased risk of data breaches, malware infections, and unauthorized access to sensitive information. The vulnerability's presence in widely used applications such as Safari, iTunes, and iCloud applications means that successful exploitation could result in widespread impact across multiple attack vectors. Security professionals should consider this vulnerability in their threat modeling exercises and prioritize patching efforts across all affected systems.
Mitigation strategies for CVE-2018-4145 primarily focus on applying the security updates released by Apple as part of iOS 11.3, tvOS 11.3, watchOS 4.3, Safari 11.1, iTunes 12.7.4 for Windows, and iCloud for Windows 7.4. Organizations should implement comprehensive patch management procedures to ensure all affected systems receive the necessary updates promptly. Network monitoring solutions should be configured to detect potential exploitation attempts through anomalous traffic patterns or suspicious application behavior. Additionally, system administrators should consider implementing application whitelisting policies and restricting user privileges to minimize potential impact from successful exploitation attempts. The vulnerability's remediation aligns with ATT&CK technique T1059.007 for command and scripting interpreter and T1068 for exploit for privilege escalation, making it a critical target for defensive measures. Regular security assessments and vulnerability scanning should be conducted to identify any remaining unpatched systems within the organization's infrastructure.