#VU47077 Arbitrary file upload in Ozeki NG SMS Gateway - CVE-2020-14022

Vulnerability identifier: #VU47077

Vulnerability risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-14022

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ozeki NG SMS Gateway
Web applications / Remote management & hosting panels

Vendor: Ozeki Ltd.

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file when importing contacts via the "Import Contacts" functionality. A remote user can upload a .bat file and execute it on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Ozeki NG SMS Gateway: 4.17.0 - 4.17.6

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External links
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-14022-Dangerous%20File%20Upload-Ozeki%20SMS%20Gateway
https://www.ozeki.hu/index.php?ow_page_number=1017&downloadaction=email&download_product_id=1&os=windows&dpath=%2Fattachments%2F702%2Finstallwindows_1590575794_OzekiNG-SMS-Gateway_4.17.6.zip&dname=Ozeki+NG+SMS+Gateway+v4.17.6&dsize=+%2817.8+MB%29&platform=Windows
https://www.ozeki.hu/index.php?owpn=231

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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