CyberSecBulletin
CVE-2024-9404NVD status: Deferred

VPort 07-3 Series: Improper Validation of Specified Type of Input

Published Updated By the CyberSecBulletin desk

CVE-2024-9404 is a high-severity improper validation of specified type of input vulnerability in VPort 07-3 Series from Moxa, 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 VPort 07-3 Series versions: 1.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.75% chance of exploitation within 30 days, higher than 55% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of VPort 07-3 Series you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on moxa.com 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
MoxaVPort 07-3 Series1.0Not stated
MoxaEDS-608 Series1.0 through 3.12Not stated
MoxaEDS-611 Series1.0 through 3.12Not stated
MoxaEDS-616 Series1.0 through 3.12Not stated
MoxaEDS-619 Series1.0 through 3.12Not stated
MoxaEDS-405A Series1.0 through 3.14Not stated
MoxaEDS-408A Series1.0 through 3.12Not stated
MoxaEDS-505A Series1.0 through 3.11Not stated
MoxaEDS-508A Series1.0 through 3.11Not stated
MoxaEDS-510A Series1.0 through 3.12Not stated
MoxaEDS-516A Series1.0 through 3.11Not stated
MoxaEDS-518A Series1.0 through 3.11Not stated
MoxaEDS-G509 Series1.0 through 3.10Not stated
MoxaEDS-P510 Series1.0 through 3.11Not stated
MoxaEDS-P510A Series1.0 through 3.11Not stated
MoxaEDS-510E Series1.0 through 5.5Not stated
MoxaEDS-518E Series1.0 through 6.3Not stated
MoxaEDS-528E Series1.0 through 6.3Not stated
MoxaEDS-G508E Series1.0 through 6.4Not stated
MoxaEDS-G512E Series1.0 through 6.4Not stated
MoxaEDS-G516E Series1.0 through 6.4Not stated
MoxaEDS-P506E Series1.0 through 5.8Not stated
MoxaICS-G7526A Series1.0 through 5.10Not stated
MoxaICS-G7528A Series1.0 through 5.10Not stated
MoxaICS-G7748A Series1.0 through 5.9Not stated

Version data comes from the organisation that assigned the CVE; 23 further products are omitted here. 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 CNA (moxa.com).

Scoring systemScoreSeverityScored by
CVSS 4.08.7HighCNA (moxa.com)
CVSS 3.17.5HighCNA (moxa.com)

Official description

This vulnerability could lead to denial-of-service or service crashes. Exploitation of the moxa_cmd service, because of insufficient input validation, allows attackers to disrupt operations. If exposed to public networks, the vulnerability poses a significant remote threat, potentially allowing attackers to shut down affected systems.

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

The underlying weakness: Improper Validation of Specified Type of Input

The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.

More Improper Validation of Specified Type of Input vulnerabilities (CWE-1287)

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

Recent Improper Validation of Specified Type of Input vulnerabilities

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