SB2021061112 - Multiple vulnerabilities in Samsung products

Description

This security bulletin contains information about 6 secuirty vulnerabilities.

1) Improper access control (CVE-ID: CVE-2021-25397)

The vulnerability allows a local attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in TelephonyUI. A local attacker can write arbitrary files of telephony process via untrusted applications.

2) Input validation error (CVE-ID: CVE-2021-25393)

The vulnerability allows a local attacker to compromise the target system.

The vulnerability exists due to improper sanitization of incoming intent in SecSettings. A local attacker can get permissions to access system uid data.

3) Information disclosure (CVE-ID: CVE-2021-25392)

The vulnerability allows a local attacker to gain access to potentially sensitive information.

The vulnerability exists due to improper protection of backup path configuration in Samsung Dex. A local attacker can gain access to sensitive information via changing the path.

4) Input validation error (CVE-ID: CVE-2021-25391)

The vulnerability allows a local attacker to compromise the target system.

The vulnerability exists due to intent redirection issue in Secure Folder. A local attacker can execute privileged action.

5) Input validation error (CVE-ID: CVE-2021-25390)

The vulnerability allows a local attacker to compromise the target system.

The vulnerability exists due to intent redirection issue in PhotoTable. A local attacker can execute privileged action.

6) Improper Authentication (CVE-ID: CVE-2021-25388)

The vulnerability allows a local attacker to bypass authentication process.

The vulnerability exists due to improper caller check issue in Knox Core. A local attacker can install arbitrary app.

Remediation

Install update from vendor's website.

References

• https://security.samsungmobile.com/securityUpdate.smsb