CVE-2021-25397

An improper access control vulnerability in TelephonyUI prior to SMR MAY-2021 Release 1 allows local attackers to write arbitrary files of telephony process via untrusted applications.

Weakness

The Android application exports a component for use by other applications, but does not properly restrict which applications can launch the component or access the data it contains.

Affected Software

Extended Description

The attacks and consequences of improperly exporting a component may depend on the exported component:

Potential Mitigations

References

• https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/
• https://security.samsungmobile.com/securityUpdate.smsb?year=2021\u0026month=5
• https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/
• https://security.samsungmobile.com/securityUpdate.smsb?year=2021\u0026month=5