#VU47080 Path traversal in Ozeki NG SMS Gateway - CVE-2020-14031

Vulnerability identifier: #VU47080

Vulnerability risk: High

CVSSv4.0: 5.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:U/U:Amber]

CVE-ID: CVE-2020-14031

CWE-ID: CWE-22

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 perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within the TXT File module. A remote user can send a specially crafted HTTP request and delete arbitrary files on the system with SYSTEM privileges.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Ozeki NG SMS Gateway: 4.0.0 - 4.17.6

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External links
https://www.ozeki.hu/index.php?owpn=231
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-14031-Arbitary%20File%20Delete-Ozeki%20SMS%20Gateway

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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.