CVE-2023-39383 in EMUI
Summary
by MITRE • 08/13/2023
Vulnerability of input parameters being not strictly verified in the AMS module. Successful exploitation of this vulnerability may compromise apps' data security.
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Analysis
by VulDB Data Team • 08/13/2023
The vulnerability identified as CVE-2023-39383 resides within the AMS module where input parameters fail to undergo strict verification processes. This weakness represents a fundamental flaw in the application's data handling mechanisms and demonstrates poor input validation practices that have significant security implications. The AMS module appears to process user-supplied data without adequate sanitization or validation checks, creating an avenue for malicious actors to manipulate system behavior through crafted inputs.
This vulnerability aligns with CWE-20, which specifically addresses "Improper Input Validation" as a critical weakness in software design. The lack of strict parameter verification creates opportunities for various attack vectors including injection attacks, data manipulation, and potentially unauthorized access to application resources. The vulnerability's nature suggests it operates at the boundary between user input and internal application processing, where data transitions from external sources to system operations.
The operational impact of this vulnerability extends beyond simple data integrity concerns to encompass broader security implications for application data protection. When input parameters are not properly verified, attackers can potentially inject malicious code, manipulate application state, or access sensitive data through the compromised AMS module. This weakness directly threatens the confidentiality and integrity of application data, as the system fails to validate the legitimacy of incoming data before processing it.
From an attack perspective, this vulnerability maps to multiple ATT&CK techniques including T1059 for command injection and T1566 for social engineering through input manipulation. The threat actor could exploit this weakness by crafting malicious inputs that bypass validation checks, potentially leading to data breaches, privilege escalation, or system compromise. The vulnerability's exploitation requires minimal technical sophistication while offering substantial potential for data exfiltration and system manipulation.
Mitigation strategies should focus on implementing comprehensive input validation mechanisms within the AMS module. This includes deploying strict parameter sanitization, employing whitelisting approaches for acceptable input values, and establishing robust data validation routines before any processing occurs. Organizations should also consider implementing automated input validation frameworks and regular security testing to identify similar weaknesses in other modules. The remediation process must ensure that all input parameters undergo rigorous verification before being accepted into the system, thereby preventing unauthorized data manipulation and maintaining application security posture.