Vulnerability identifier: #VU49508

Vulnerability risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-20616

CWE-ID: CWE-427

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SKYSEA Client View
Client/Desktop applications / Other client software

Vendor: Sky Co., LTD.

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to the application loads DLL libraries in an insecure manner. A remote attacker can place a specially crafted .dll file and execute arbitrary code on victim's system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

SKYSEA Client View: 1.020.05b - 16.001.01g

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External links
http://jvn.jp/en/jp/JVN69635538/index.html
http://www.skyseaclientview.net/news/210112_01/

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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.