CVE-2023-20635 in MT6580
Summary
by MITRE • 03/07/2023
In keyinstall, there is a possible information disclosure due to an integer overflow. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07563028; Issue ID: ALPS07563028.
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Analysis
by VulDB Data Team • 08/28/2025
The vulnerability identified as CVE-2023-20635 resides within the keyinstall component of a system, representing a critical information disclosure risk stemming from an integer overflow condition. This flaw manifests in the improper handling of integer values during processing operations, creating potential pathways for unauthorized data exposure. The vulnerability requires system execution privileges for exploitation, indicating that an attacker must already possess elevated access rights to leverage this weakness effectively. However, the absence of user interaction requirements makes this vulnerability particularly concerning as it can be exploited automatically without direct user involvement or deception. The integer overflow occurs during operations within the keyinstall module, where computational boundaries are exceeded, potentially allowing for memory corruption or unexpected behavior that could expose sensitive information. This type of vulnerability falls under the CWE-190 category of Integer Overflow or Wraparound, which represents a fundamental weakness in data handling and boundary validation. The issue has been addressed through patch ID ALPS07563028, which specifically targets the integer overflow condition within the keyinstall component. The underlying technical flaw demonstrates poor input validation and insufficient boundary checking mechanisms that fail to properly handle edge cases in integer arithmetic operations. From an operational perspective, this vulnerability creates a significant risk for systems where keyinstall functionality is utilized, particularly in environments where system-level privileges are compromised or where privileged accounts are present. The potential information disclosure could expose cryptographic keys, authentication tokens, or other sensitive data that the keyinstall component manages or processes. Attackers leveraging this vulnerability could potentially access system configuration data, encryption keys, or other confidential information that would normally be protected by proper access controls. The ATT&CK framework would categorize this vulnerability under T1068 for Valid Accounts and potentially T1552 for Unsecured Credentials, as the exploitation requires system privileges but could lead to credential exposure. The integer overflow condition suggests that the system fails to properly validate input parameters or perform adequate range checking before processing operations, allowing for unexpected behavior that could be manipulated to extract information. Organizations should prioritize applying the ALPS07563028 patch immediately, as this vulnerability represents a direct threat to system integrity and information security. The patch likely addresses the specific integer overflow by implementing proper bounds checking, input validation, or by using safer integer handling mechanisms that prevent the wraparound condition from occurring. System administrators should also conduct thorough vulnerability assessments to identify any other components that might be susceptible to similar integer overflow conditions, as this type of flaw often indicates broader issues in code quality and security practices. The vulnerability highlights the importance of proper input validation and boundary checking in security-critical components, particularly those handling sensitive data or system-level operations. Given the requirement for system execution privileges, this vulnerability serves as a reminder that even privileged access must be carefully controlled and monitored, as it can provide attackers with opportunities to exploit weaknesses in system components that are otherwise protected by access controls.