CVE-2023-41304 in HarmonyOS
Summary
by MITRE • 10/25/2023
Parameter verification vulnerability in the window module.Successful exploitation of this vulnerability may cause the size of an app window to be adjusted to that of a floating window.
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Analysis
by VulDB Data Team • 10/31/2023
This vulnerability resides within the window module of a software application, representing a parameter verification flaw that compromises the integrity of window management operations. The issue stems from insufficient input validation mechanisms that fail to properly sanitize or verify the parameters passed to window manipulation functions. When an attacker can manipulate window sizing parameters, they gain the ability to alter the dimensions of application windows in unintended ways. This specific vulnerability allows for the adjustment of an application window size to match that of a floating window, which represents a significant deviation from expected behavior. The flaw likely exists in the window sizing logic where the system does not adequately validate the boundaries or constraints of window dimension parameters before applying them to the display interface.
The technical implementation of this vulnerability involves the manipulation of window management parameters that control the size and positioning of application interfaces. When parameter verification fails, the system accepts malformed or unauthorized dimension values that can cause windows to be resized beyond their intended boundaries. This typically occurs in graphical user interface frameworks where window sizing operations are performed without proper boundary checks or input sanitization. The vulnerability can be exploited through various means including direct parameter manipulation, injection attacks, or by leveraging other vulnerabilities that allow for parameter tampering within the window module's API. The root cause often relates to CWE-20, which describes improper input validation, and may also connect to CWE-122, indicating improper restriction of operations within a restricted environment.
Operationally, this vulnerability presents a moderate to high risk depending on the application context and its window management requirements. The impact extends beyond simple visual disruption as it can potentially enable more sophisticated attacks such as window overlay manipulation, interface confusion, or even privilege escalation in certain environments. An attacker could exploit this to create overlapping windows, obscure critical interface elements, or manipulate the user experience in ways that might facilitate further exploitation. The vulnerability particularly affects applications that rely heavily on dynamic window management, such as desktop applications, web browsers, or system interfaces where window positioning and sizing are critical for proper operation. In enterprise environments, this could lead to productivity loss, user confusion, or create opportunities for social engineering attacks where interface manipulation is used to mislead users.
Mitigation strategies should focus on implementing comprehensive parameter validation mechanisms within the window module. This includes establishing strict boundary checks for window sizing parameters, implementing input sanitization routines, and ensuring that all window manipulation operations undergo proper verification before execution. The solution should incorporate defensive programming practices that validate all input parameters against predefined acceptable ranges and constraints. Organizations should also consider implementing proper access controls and privilege separation to limit the ability of unauthorized users to manipulate window parameters. Regular code reviews and security testing should target window management functions to identify similar parameter verification issues. Additionally, maintaining up-to-date software versions and applying security patches promptly can prevent exploitation of known vulnerabilities. The implementation of these mitigations aligns with ATT&CK technique T1059, which involves the execution of malicious code through legitimate system processes, and supports the broader security principle of least privilege access control.