CyberSecBulletin
CVE-2023-3712NVD status: Modified

PM23/43: Files or Directories Accessible to External Parties

Published Updated By the CyberSecBulletin desk

CVE-2023-3712 is a high-severity files or directories accessible to external parties vulnerability in PM23/43 from Honeywell, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version P10.19.050004 as the first without the flaw, so updating PM23/43 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.55% 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 PM23/43 to P10.19.050004 or a later version.
  2. Update PC23/43, PD43 to K10.19.050004 or a later version.
  3. Update PM42 to T10.19.050004 or L10.19.050004, whichever matches your release line, or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
HoneywellPM23/43before P10.19.050004P10.19.050004
HoneywellPC23/43, PD43before K10.19.050004K10.19.050004
HoneywellPM42before T10.19.050004; before L10.19.050004T10.19.050004, L10.19.050004
HoneywellPX4ie/6iebefore A10.19.050004A10.19.050004
HoneywellPX45/65before B10.19.050004B10.19.050004
HoneywellPD45, PX240before F10.19.050004F10.19.050004
HoneywellPX940before H10.19.050004H10.19.050004
HoneywellPM45before J10.19.050004J10.19.050004
HoneywellRP2f/RP4fbefore M10.19.050006M10.19.050006
HoneywellPm43 Firmwarebefore p10.19.050004p10.19.050004

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
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
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
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

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

Scoring systemScoreSeverityScored by
CVSS 3.16.6MediumCNA (honeywell.com)
CVSS 3.17.8HighNVD

Official description

Files or Directories Accessible to External Parties vulnerability in Honeywell PM43 on 32 bit, ARM (Printer web page modules) allows Privilege Escalation.This issue affects PM43 versions prior to P10.19.050004. Update to the latest available firmware version of the respective printers to version MR19.5 (e.g. P10.19.050006).

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

The underlying weakness: Files or Directories Accessible to External Parties

The product makes files or directories accessible to unauthorized actors, even though they should not be.

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 disable public access.

More Files or Directories Accessible to External Parties vulnerabilities (CWE-552)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in PM23/43

All PM23/43 vulnerabilities

Recent Files or Directories Accessible to External Parties vulnerabilities

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