#VU47078 XML External Entity injection in Ozeki NG SMS Gateway - CVE-2020-14029

Vulnerability identifier: #VU47078

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-14029

CWE-ID: CWE-611

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 gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input within the RSS To SMS module. A remote user can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Mitigation
Install updates 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-2020-14029-XXE-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.