#VU72907 Missing Authorization in UNISOC products - CVE-2021-39636

Vulnerability identifier: #VU72907

Vulnerability risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-39636

CWE-ID: CWE-862

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SC9863A
Mobile applications / Mobile firmware & hardware
SC9832E
Mobile applications / Mobile firmware & hardware
SC7731E
Mobile applications / Mobile firmware & hardware
UMS512
Mobile applications / Mobile firmware & hardware
UMS312
Mobile applications / Mobile firmware & hardware
UMS9230
Mobile applications / Mobile firmware & hardware
UMS9620
Mobile applications / Mobile firmware & hardware

Vendor: UNISOC

Description

The vulnerability allows a remote attacker to read, manipulate or delete data.

The vulnerability exists due to improper input validation within the net service in System. A remote attacker can trick the victim to open a specially crafted file and read, manipulate or delete data.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

SC9863A: All versions

SC9832E: All versions

SC7731E: All versions

UMS512: All versions

UMS312: All versions

UMS9230: All versions

UMS9620: All versions

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External links
https://www.unisoc.com/en_us/secy/announcementDetail/1532206380499406850

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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