CVE-2016-9315

Interscan Web Security Virtual Appliance vulnerability

CVSS

8.8

EPSS

9.0%

EPSS pct

95th

Exploited

No known

Privilege Escalation Vulnerability in com.trend.iwss.gui.servlet.updateaccountadministration in Trend Micro InterScan Web Security Virtual Appliance (IWSVA) version 6.5-SP2_Build_Linux_1707 and earlier allows authenticated, remote users with least privileges to change Master Admin's password and/or add new admin accounts. This was resolved in Version 6.5 CP 1737.

Affected vendor

Trendmicro

Affected product

Interscan Web Security Virtual Appliance

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-264 — Permissions, Privileges, and Access Controls

Published

2017-02-21

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 9.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2016-9315

Confirm whether Trendmicro Interscan Web Security Virtual Appliance is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2016-9315.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-9315

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-9315 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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