CVE-2020-27018 Server-side request forgery in Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA)

Medium 5.5 Published 9 Nov 2020 Updated 4 Aug 2024

An authenticated attacker can exploit SSRF in Trend Micro IMSVA to access internal web resources or local files.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-27018?

CVE-2020-27018 is a medium-severity server-side request forgery vulnerability in Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA), published on 9 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA) 9.1 is vulnerable to a server side request forgery vulnerability which could allow an authenticated attacker to abuse the product's web server and grant access to web resources or parts of local files. An attacker must already have obtained authenticated privileges on the product to exploit this vulnerability.

Weakness: CWE-918

Which versions are affected by CVE-2020-27018?

It affects 1 product.

Products include Trendmicro Interscan Messaging Security Virtual Appliance.

How do I fix CVE-2020-27018?

No fix has been published for CVE-2020-27018 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2020-27018 being exploited?

There is no known exploitation of CVE-2020-27018 in the wild and no public exploit code.

Sources

Also known as GHSA-h8rc-vwv6-26wf.