#VU76529 Input validation error in Samsung Mobile Firmware - CVE-2023-21502

Vulnerability identifier: #VU76529

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-21502

CWE-ID: CWE-20

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 escalate privileges on the device.

The vulnerability exists due to insufficient input validation in FactoryTest application. A malicious application can get privilege escalation via debugging commands.

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.