CVE-2018-4307 in Safari
Summary
by MITRE
A logic issue was addressed with improved state management. This issue affected versions prior to iOS 12, Safari 12.
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Analysis
by VulDB Data Team • 08/22/2023
The vulnerability identified as CVE-2018-4307 represents a logic flaw in Apple's software implementation that was resolved through enhanced state management protocols. This issue specifically impacted iOS versions prior to iOS 12 and Safari versions prior to Safari 12, indicating a widespread concern within Apple's ecosystem that required immediate attention. The vulnerability stems from insufficient handling of application states during certain user interactions and system operations, creating potential security implications that could be exploited by malicious actors. The flaw likely manifested in scenarios where the application failed to properly transition between different operational states, potentially leading to inconsistent behavior or unauthorized access opportunities.
The technical nature of this vulnerability aligns with CWE-254, which addresses security weaknesses related to improper handling of application states and control flow. This classification indicates that the issue involved inadequate state validation or management mechanisms that allowed for unexpected program behavior. The vulnerability's resolution through improved state management suggests that the original implementation failed to maintain proper consistency checks during state transitions, potentially creating conditions where the application could be manipulated into executing unintended code paths or accessing restricted resources. This type of logic flaw is particularly concerning as it often requires subtle exploitation techniques that may not be immediately apparent to users or security analysts.
From an operational perspective, this vulnerability could have enabled attackers to perform unauthorized actions within affected systems, potentially leading to data breaches, privilege escalation, or system compromise. The impact was particularly significant given that iOS and Safari are widely used platforms where such vulnerabilities could affect millions of users. The attack surface likely included web-based interactions, application state transitions, and potentially cross-site scripting scenarios where the flawed state management could be leveraged to execute malicious code. Security researchers and threat actors would have identified this weakness as a potential entry point for more sophisticated attacks targeting mobile and web environments.
Organizations and users should have implemented immediate mitigation strategies upon the release of iOS 12 and Safari 12 updates, which contained the necessary state management improvements. The resolution involved updating the underlying software frameworks to properly handle state transitions and maintain consistent application behavior throughout user interactions. This vulnerability highlights the importance of comprehensive state management in security-critical applications and demonstrates how seemingly minor logic flaws can create significant security risks. The remediation process required careful validation of all state transition mechanisms and thorough testing to ensure that the improved implementation did not introduce new vulnerabilities while addressing the original security concern. The fix aligns with ATT&CK technique T1059, where attackers might exploit such logic flaws to execute code, though in this case the vulnerability was addressed through proper software updates rather than exploitation.