CyberSecBulletin
CVE-2023-49143NVD status: Modified

GC-A22W-CW: Uncontrolled Resource Consumption

Published Updated By the CyberSecBulletin desk

CVE-2023-49143 is a high-severity uncontrolled resource consumption vulnerability in GC-A22W-CW from JTEKT ELECTRONICS, 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 GC-A22W-CW versions: all versions. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.98% 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. Check which version of GC-A22W-CW you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on electronics.jtekt.co.jp for workarounds and exact fixed builds.
  3. 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
JTEKT ELECTRONICSGC-A22W-CWall versionsNot stated
JTEKT ELECTRONICSGC-A24W-C(W)all versionsNot stated
JTEKT ELECTRONICSGC-A26W-C(W)all versionsNot stated
JTEKT ELECTRONICSGC-A24all versionsNot stated
JTEKT ELECTRONICSGC-A24-Mall versionsNot stated
JTEKT ELECTRONICSGC-A25all versionsNot stated
JTEKT ELECTRONICSGC-A26all versionsNot stated
JTEKT ELECTRONICSGC-A26-J2all versionsNot stated
JTEKT ELECTRONICSGC-A27-Call versionsNot stated
JTEKT ELECTRONICSGC-A28-Call versionsNot stated
JtektGc-a22w-cw FirmwareNot specified in the recordNot stated
JtektGc-a24w-c(w) FirmwareNot specified in the recordNot stated
JtektGc-a26w-c(w) FirmwareNot specified in the recordNot stated
JtektGc-a24 FirmwareNot specified in the recordNot stated
JtektGc-a24-m FirmwareNot specified in the recordNot stated
JtektGc-a25 FirmwareNot specified in the recordNot stated
JtektGc-a26 FirmwareNot specified in the recordNot stated
JtektGc-a26-j2 FirmwareNot specified in the recordNot stated
JtektGc-a27-c FirmwareNot specified in the recordNot stated
JtektGc-a28-c FirmwareNot specified in the recordNot stated

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
NoneNo data is disclosed.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

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

Official description

Denial-of-service (DoS) vulnerability exists in rfe service of HMI GC-A2 series. If a remote unauthenticated attacker sends a specially crafted packets to specific ports, a denial-of-service (DoS) condition may occur.

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

The underlying weakness: Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

How developers prevent this class of flaw

  • Ensure that protocols have specific limits of scale placed on them.
  • Ensure that all failures in resource allocation place the system into a safe posture.

More Uncontrolled Resource Consumption vulnerabilities (CWE-400)

Timeline

  1. CVE record published.
  2. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Other vulnerabilities in GC-A22W-CW

All GC-A22W-CW vulnerabilities

Recent Uncontrolled Resource Consumption vulnerabilities

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