#VU72985 Incorrect Permission Assignment for Critical Resource in MediaTek products - CVE-2021-0904

Vulnerability identifier: #VU72985

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-0904

CWE-ID: CWE-732

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT6771
Mobile applications / Mobile firmware & hardware
MT8183
Mobile applications / Mobile firmware & hardware
MT8385
Mobile applications / Mobile firmware & hardware
MT8788
Mobile applications / Mobile firmware & hardware

Vendor: MediaTek

Description

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to an insecure permission setting within SRAMROM. A local privileged application can execute arbitrary code.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT6771: All versions

MT8183: All versions

MT8385: All versions

MT8788: All versions

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External links
https://corp.mediatek.com/product-security-bulletin/December-2021

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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.