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TI-2017-04165 Aliases CVE-2017-6339GHSA-8jrh-xx3q-344c

Trend Micro InterScan Web Security Virtual Appliance (IWSVA) 6.5 before CP 1746…

Priority LOW 36CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation, Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-269 and CWE-521.

Summary

Trend Micro InterScan Web Security Virtual Appliance (IWSVA) 6.5 before CP 1746 mismanages certain key and certificate data. Per IWSVA documentation, by default, IWSVA acts as a private Certificate Authority (CA) and dynamically generates digital certificates that are sent to client browsers to complete a secure passage for HTTPS connections. It also allows administrators to upload their own certificates signed by a root CA. An attacker with low privileges can download the current CA certificate and Private Key (either the default ones or ones uploaded by administrators) and use those to decrypt HTTPS traffic, thus compromising confidentiality. Also, the default Private Key on this appliance is encrypted with a very weak passphrase. If an appliance uses the default Certificate and Private Key provided by Trend Micro, an attacker can simply download these and decrypt the Private Key using the default/weak passphrase.

Why it matters now

EPSS 0.04071 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:trendmicro:interscan_web_security_virtual_appliance:*:*:*:*:*:*:*:*up to 6.5VulnerableTrendmicro
  • cpe:2.3:a:trendmicro:interscan_web_security_virtual_appliance:*:*:*:*:*:*:*:* Versions up to 6.5 Vulnerable ·Trendmicro

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-6339
  2. 2026-10-03 Alias added: GHSA-8jrh-xx3q-344c

References

Exploit 1

Patch 1

  • TI-2020-17313 Out-of-bounds write in Trend Micro InterScan Web Security Virtual Appliance CVSS 3.1CRITICAL 9.8
  • TI-2020-06902 Improper authentication in Trend Micro InterScan Web Security Virtual Appliance CVSS 3.1CRITICAL 9.8
  • TI-2020-06901 OS command injection in Trend Micro InterScan Web Security Virtual Appliance CVSS 3.1HIGH 8.8
  • TI-2020-06793 OS command injection in Trend Micro InterScan Web Security Virtual Appliance CVSS 3.1CRITICAL 9.8
  • TI-2020-06900 Path traversal in Trend Micro InterScan Web Security Virtual Appliance CVSS 3.1HIGH 7.5
  • TI-2020-17314 Out-of-bounds write in Trend Micro InterScan Web Security Virtual Appliance CVSS 3.1HIGH 8.8
See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences