CyberSecBulletin
CVE-2024-12399NVD status: Deferred

Pro-face GP-Pro EX: Improper Enforcement of Message Integrity During Transmission in a Communication Channel

CVE-2024-12399 is a high-severity improper enforcement of message integrity during transmission in a communication channel vulnerability in Pro-face GP-Pro EX from Schneider Electric, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. The record lists version v5.00.100 as the first without the flaw, so updating Pro-face GP-Pro EX to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.17% 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 Pro-face GP-Pro EX to v5.00.100 or a later version.
  2. Update Pro-face Remote HMI to v1.70.000 or a later version.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
  4. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
Schneider ElectricPro-face GP-Pro EXall version up to, but not including, v5.00.100v5.00.100
Schneider ElectricPro-face Remote HMIall versions up to, but not including, v1.70.000v1.70.000

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
HighSuccess depends on conditions outside the attacker's control.
Privileges required
NoneNo account or login is needed.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
LowSome restricted data 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:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:H. Scored by CNA (se.com).

Scoring systemScoreSeverityScored by
CVSS 4.06.1MediumCNA (se.com)
CVSS 3.17.1HighCNA (se.com)

Official description

CWE-924: Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulnerability exists that could cause partial loss of confidentiality, loss of integrity and availability of the HMI when attacker performs man in the middle attack by intercepting the communication.

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

The underlying weakness: Improper Enforcement of Message Integrity During Transmission in a Communication Channel

The product establishes a communication channel with an endpoint and receives a message from that endpoint, but it does not sufficiently ensure that the message was not modified during transmission.

More Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulnerabilities (CWE-924)

Timeline

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

References

Recent Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulnerabilities

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