CVE-2020-27018

Interscan Messaging Security Virtual Appliance vulnerability

CVSS

5.5

EPSS

3.5%

EPSS pct

88th

Exploited

No known

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.

Affected vendor

Trendmicro

Affected product

Interscan Messaging Security Virtual Appliance

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness type (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

Published

2020-11-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2020-27018

Confirm whether Trendmicro Interscan Messaging Security Virtual Appliance is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-27018.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-27018

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-27018 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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