CVE-2018-6221 Code injection in Trend Micro Email Encryption Gateway

High 8.1 Published 15 Mar 2018 Updated 5 Aug 2024

A man-in-the-middle attacker can tamper with software updates to inject malicious code into Trend Micro Email Encryption Gateway.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-6221?

CVE-2018-6221 is a high-severity code injection vulnerability in Trend Micro Email Encryption Gateway, published on 15 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An unvalidated software update vulnerability in Trend Micro Email Encryption Gateway 5.5 could allow a man-in-the-middle attacker to tamper with an update file and inject their own.

Weakness: CWE-295

Which versions are affected by CVE-2018-6221?

It affects 1 product.

Products include Trendmicro Email Encryption Gateway.

How do I fix CVE-2018-6221?

No fix has been published for CVE-2018-6221 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2018-6221 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-6221 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-v5jx-63r2-pgwj.