CVEs-PoC/2021/CVE-2021-25397.md

### [CVE-2021-25397](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25397)
![](https://img.shields.io/static/v1?label=Product&message=Samsung%20Mobile%20Devices%20&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=P(9.0)%2C%20Q(10.0)%2C%20R(11.0)%3C%20SMR%20MAY-2021%20Release%201%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-926%3A%20Improper%20Export%20of%20Android%20Application%20Components&color=brighgreen)

### Description

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.

### POC

#### Reference
- https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/
- https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5

#### Github
No PoCs found on GitHub currently.