CyberSecBulletin
CVE-2023-3270NVD status: Modified

ICR890-4: Exposure of Resource to Wrong Sphere

CVE-2023-3270 is a high-severity exposure of resource to wrong sphere vulnerability in ICR890-4 from SICK, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 2.5.0 as the first without the flaw, so updating ICR890-4 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.98% chance of exploitation within 30 days, higher than 63% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update ICR890-4 to 2.5.0 or a later version.
  2. Update Icr890-4 Firmware to 2.5.0 or a later version.
  3. Read the advisory on sick.com for workarounds and exact fixed builds.
  4. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
SICKICR890-4before 2.5.02.5.0
SickIcr890-4 Firmwarebefore 2.5.02.5.0

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.18.6HighCNA (sick.de)
CVSS 3.17.5HighNVD

Official description

Exposure of Sensitive Information to an Unauthorized Actor in the SICK ICR890-4 could allow an unauthenticated remote attacker to retrieve sensitive information about the system.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Exposure of Resource to Wrong Sphere

The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

More Exposure of Resource to Wrong Sphere vulnerabilities (CWE-668)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in ICR890-4

All ICR890-4 vulnerabilities

Recent Exposure of Resource to Wrong Sphere vulnerabilities

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