#VU76552 Improper access control in Samsung Mobile Firmware - CVE-2023-21487

Vulnerability identifier: #VU76552

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-21487

CWE-ID: CWE-284

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Samsung Mobile Firmware
Mobile applications / Mobile firmware & hardware

Vendor: Samsung

Description

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

The vulnerability exists due to improper access restrictions in Telephony framework. A local application can bypass implemented security restrictions and change a call setting.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Samsung Mobile Firmware: before SMR-MAY-2023

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External links
https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=05

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.