CVE-2023-40132
Published: 21 January 2025
Summary
CVE-2023-40132 is a high-severity Incorrect Default Permissions (CWE-276) vulnerability in Google Android. Its CVSS base score is 7.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 0.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2023-40132 is a vulnerability in the setActualDefaultRingtoneUri method of RingtoneManager.java within the Android framework. It stems from a missing permission check that allows bypassing content provider read permissions, classified under CWE-276 (Incorrect Default Permissions). The issue carries a CVSS v3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) and was published on 2025-01-21.
A local attacker with low privileges can exploit this vulnerability to achieve escalation of privilege without needing additional execution privileges. Although the CVSS vector indicates no user interaction (UI:N), the description specifies that user interaction is required for exploitation. Successful exploitation grants high confidentiality, integrity, and availability impacts.
The Android Security Bulletin at https://source.android.com/security/bulletin/2025-01-01 provides details on patches and mitigation steps for affected Android versions. Security practitioners should apply these updates promptly to address the permission bypass.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-44739
Vulnerability details
In setActualDefaultRingtoneUri of RingtoneManager.java, there is a possible way to bypass content providers read permissions due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for…
more
exploitation.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Missing permission check enables local privilege escalation via exploitation of Android framework component.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Enforces approved authorizations for access to system resources, directly addressing the missing permission check that allows bypassing content provider read permissions.
Employs least privilege to restrict access beyond what is necessary, mitigating the local escalation of privilege enabled by the permission bypass.
Requires identification, reporting, and correction of flaws like the missing permission check in RingtoneManager.java, as addressed in Android security bulletins.