PT-2020-13854 · Ozeki · Ozeki Ng Sms Gateway

Published 2020-09-29 · Updated 2020-10-09 · CVE-2020-14030

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Ozeki NG SMS Gateway versions prior to 4.17.7

Description An issue was discovered where Ozeki NG SMS Gateway stores SMS messages in .NET serialized format on the filesystem. This allows an attacker to generate malicious .NET serialized files, which when written to the disk and deserialized by the product, can result in arbitrary code execution.

Recommendations For Ozeki NG SMS Gateway versions prior to 4.17.7, update to version 4.17.7 or later to resolve the issue. As a temporary workaround, consider restricting access to the filesystem where SMS messages are stored to minimize the risk of exploitation.

Exploit

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2020-14030

Affected Products

Ozeki Ng Sms Gateway

References · 4

• 🔥 https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-14030-RCE%20via%20.NET%20Deserialization-Ozeki%20SMS%20Gateway · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-14030 · Security Note
• https://osv.dev/vulnerability/CVE-2020-14030 · Vendor Advisory
• http://ozeki.hu/index.php?owpn=231 · Vendor Advisory