CyberSecBulletin
CVE-2023-31408NVD status: Modified

SICK FTMG-ESD15AXX AIR FLOW SENSOR: Cleartext Storage of Sensitive Information

Published Updated By the CyberSecBulletin desk

CVE-2023-31408 is a high-severity cleartext storage of sensitive information vulnerability in SICK FTMG-ESD15AXX AIR FLOW SENSOR 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. Affected SICK FTMG-ESD15AXX AIR FLOW SENSOR versions: all firmware versions. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.42% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Ftmg-esd20axx Firmware to 2.0 or a later version.
  2. Update Ftmg-esd25axx Firmware to 2.0 or a later version.
  3. Update Ftmg-esn40sxx Firmware to 2.0 or a later version.
  4. Read the advisory on sick.com for workarounds and exact fixed builds.
  5. 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
SICKSICK FTMG-ESD15AXX AIR FLOW SENSORall firmware versionsNot stated
SICKSICK FTMG-ESD20AXX AIR FLOW SENSORall firmware versionsNot stated
SICKSICK FTMG-ESD25AXX AIR FLOW SENSORall firmware versionsNot stated
SICKSICK FTMG-ESN40SXX AIR FLOW SENSORall firmware versionsNot stated
SICKSICK FTMG-ESN50SXX AIR FLOW SENSORall firmware versionsNot stated
SICKSICK FTMG-ESR40SXX AIR FLOW SENSORall firmware versionsNot stated
SICKSICK FTMG-ESR50SXX AIR FLOW SENSORall firmware versionsNot stated
SickFtmg-esd20axx Firmwarebefore 2.02.0
SickFtmg-esd25axx Firmwarebefore 2.02.0
SickFtmg-esn40sxx Firmwarebefore 2.02.0
SickFtmg-esn50sxx Firmwarebefore 2.02.0
SickFtmg-esr50sxx Firmwarebefore 2.02.0
SickFtmg-esr40sxx Firmwarebefore 2.02.0
SickFtmg-esd15axx Firmwarebefore 2.02.0

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 3.15.3MediumCNA (sick.de)
CVSS 3.17.5HighNVD

Official description

Cleartext Storage of Sensitive Information in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114, 1120116, 1122524, 1122526 allows a remote attacker to potentially steal user credentials that are stored in the user’s browsers local storage via cross-site-scripting attacks.

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

The underlying weakness: Cleartext Storage of Sensitive Information

The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere.

How developers prevent this class of flaw

  • When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to encrypt the data at rest.
  • In some systems/environments such as cloud, the use of double encryption (at both the software and hardware layer) might be required, and the developer might be solely responsible for both layers, instead of shared responsibility with the administrator of the broader system/environment.

More Cleartext Storage of Sensitive Information vulnerabilities (CWE-312)

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 SICK FTMG-ESD15AXX AIR FLOW SENSOR

All SICK FTMG-ESD15AXX AIR FLOW SENSOR vulnerabilities

Recent Cleartext Storage of Sensitive Information vulnerabilities

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