CVE-2018-4195 in Safari
Summary
by MITRE
An inconsistent user interface issue was addressed with improved state management. This issue affected versions prior to Safari 12.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 08/21/2023
The vulnerability identified as CVE-2018-4195 represents a user interface inconsistency flaw that existed in Apple Safari browser versions prior to Safari 12. This type of vulnerability falls under the broader category of inconsistent state management within graphical user interfaces, which can create security implications when user interactions do not properly reflect the underlying system state. The issue specifically affected the browser's handling of user interface elements and their corresponding internal states, creating potential confusion for both users and automated systems that rely on predictable interface behavior.
The technical nature of this vulnerability stems from inadequate state management within Safari's user interface components. When users interact with various elements of the browser interface, the system should maintain consistent internal states that accurately reflect user actions and system conditions. However, in affected versions, this consistency was broken, potentially allowing for scenarios where interface elements appeared to be in one state while the underlying system was operating under different conditions. This discrepancy could be exploited to create confusion during security-sensitive operations or to potentially bypass certain interface-based security controls. The vulnerability aligns with CWE-691, which addresses insufficient control flow management, and represents a specific instance of improper state management in GUI applications.
The operational impact of CVE-2018-4195 extends beyond simple user experience issues, as inconsistent interface behavior can create security risks during critical operations. When users cannot rely on the visual feedback of interface elements matching the actual system state, it becomes difficult to accurately assess security conditions or make informed decisions about browser operations. This particular vulnerability affected users of Safari versions prior to 12, which would have included significant portions of the browser user base during the timeframe when this issue existed. The risk was particularly concerning in environments where users might be performing security-sensitive activities, as the inconsistent interface behavior could mask potential security issues or create opportunities for social engineering attacks that exploit user confusion.
Apple addressed this vulnerability through improved state management within Safari 12, implementing more robust mechanisms to ensure that user interface elements consistently reflect the actual system state. The remediation involved enhancing the browser's internal state tracking and synchronization processes to prevent the inconsistencies that previously occurred. Organizations should ensure that all Safari installations are updated to version 12 or later to mitigate this vulnerability. The fix demonstrates the importance of maintaining consistent state management in security-critical applications, as outlined in the ATT&CK framework's consideration of user interface manipulation techniques. This vulnerability serves as a reminder that seemingly minor interface inconsistencies can have significant security implications, particularly in applications where user trust and accurate feedback are essential for secure operation.