CyberSecBulletin
CVE-2022-4992NVD status: Awaiting Analysis

Infinity Acute Care System: Insufficient Verification of Data Authenticity

CVE-2022-4992 is a high-severity insufficient verification of data authenticity vulnerability in Infinity Acute Care System from Dräger, with a CVSS 3.1 base score of 8.6 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists versions VG4.2, VG4.1.1, VG4.0.3 as the first without the flaw, so updating Infinity Acute Care System to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.16% 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 Infinity Acute Care System to VG4.2 or VG4.1.1 or VG4.0.3, whichever matches your release line, or a later version.
  2. Update Standalone Infinity M540 patient monitor to VG4.2 or VG4.1.1, whichever matches your release line, or a later version.
  3. Read the advisory on static.draeger.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
DrägerInfinity Acute Care Systembefore VG4.2; before VG4.1.1; before VG4.0.3VG4.2, VG4.1.1, VG4.0.3
DrägerStandalone Infinity M540 patient monitorbefore VG4.2; before VG4.1.1VG4.2, VG4.1.1

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
LowSome restricted data can be read.
Integrity
LowLimited modification of data is possible.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H. Scored by CNA (vulncheck.com).

Scoring systemScoreSeverityScored by
CVSS 4.08.8HighCNA (vulncheck.com)
CVSS 3.18.6HighCNA (vulncheck.com)

Official description

Dräger Infinity Acute Care System and Standalone Infinity M540 patient monitors versions VG4.1.1, VG4.0.3, and lower (with VG4.2 partially affected) contain a network message handling vulnerability that allows remote attackers to inject spoofed or tampered data and cause denial-of-service conditions. Attackers can compromise network communications to modify device settings such as alarm states or alarm limits, or overwhelm the system with excessive network traffic causing the Cockpit or M540 to reboot and lose network functionality.

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

The underlying weakness: Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

More Insufficient Verification of Data Authenticity vulnerabilities (CWE-345)

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

Recent Insufficient Verification of Data Authenticity vulnerabilities

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