An application "com.pri.applock", which is pre-loaded on Kruger&Matz smartphones, allows a user to encrypt any application using user-provided PIN code or by using biometric data. Exposed ”com.pri.applock.LockUI“ activity allows any other malicious application, with no granted Android system permissions, to inject an arbitrary intent with system-level privileges to a protected application. One must know the protecting PIN number (it might be revealed by exploiting CVE-2024-13916) or ask the user to provide it.
Only version (version name: 13, version code: 33) was tested and confirmed to have this vulnerability. Application update was released in April 2025.
CVSS Details
- CVSS 4.0 Base Score: 8.3 (HIGH)
- CVSS 4.0 Vector: (CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
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