THREATPORT/VULNERABILITY/CVE-2017-16743
CRITICAL SEVERITY

CVE-2017-16743

Fl Switch 3005 Firmware vulnerability

CVSS
9.8
EPSS
3.1%
EPSS pct
86th
Exploited
No known
An Improper Authorization issue was discovered in PHOENIX CONTACT FL SWITCH 3xxx, 4xxx, and 48xxx Series products running firmware Version 1.0 to 1.32. A remote unauthenticated attacker may be able to craft special HTTP requests allowing an attacker to bypass web-service authentication allowing the attacker to obtain administrative privileges on the device.
Affected vendor
Phoenixcontact
Affected product
Fl Switch 3005 Firmware
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2018-01-12

Risk analysis

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

Its EPSS score of 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2017-16743

  • Confirm whether Phoenixcontact Fl Switch 3005 Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-16743.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-16743

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-16743 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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