CyberSecBulletin
CVE-2024-56182NVD status: Deferred

SIMATIC Field PG M5: Protection Mechanism Failure

Published Updated By the CyberSecBulletin desk

CVE-2024-56182 is a high-severity protection mechanism failure vulnerability in SIMATIC Field PG M5 from Siemens, with a CVSS 3.1 base score of 8.2 out of 10. It can be exploited with local access to the system by an attacker with administrator privileges, without any action from a user. Affected SIMATIC Field PG M5 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 0.21% 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 SIMATIC Field PG M6 to V26.01.12 or a later version.
  2. Update SIMATIC IPC BX-21A to V31.01.07 or a later version.
  3. Update SIMATIC IPC BX-32A to V29.01.07 or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
SiemensSIMATIC Field PG M5all versionsNot stated
SiemensSIMATIC Field PG M6before V26.01.12V26.01.12
SiemensSIMATIC IPC BX-21Abefore V31.01.07V31.01.07
SiemensSIMATIC IPC BX-32Abefore V29.01.07V29.01.07
SiemensSIMATIC IPC BX-39Abefore V29.01.07V29.01.07
SiemensSIMATIC IPC BX-59Abefore V32.01.04V32.01.04
SiemensSIMATIC IPC PX-32Abefore V29.01.07V29.01.07
SiemensSIMATIC IPC PX-39Abefore V29.01.07V29.01.07
SiemensSIMATIC IPC PX-39A PRObefore V29.01.07V29.01.07
SiemensSIMATIC IPC RC-543Abefore V36.01.03V36.01.03
SiemensSIMATIC IPC RC-543Bbefore V35.01.12V35.01.12
SiemensSIMATIC IPC RW-543Abefore V1.1.4V1.1.4
SiemensSIMATIC IPC RW-543Bbefore V35.02.10V35.02.10
SiemensSIMATIC IPC127Ebefore V27.01.11V27.01.11
SiemensSIMATIC IPC227Eall versionsNot stated
SiemensSIMATIC IPC227Gbefore V28.01.14V28.01.14
SiemensSIMATIC IPC277Eall versionsNot stated
SiemensSIMATIC IPC277Gbefore V28.01.14V28.01.14
SiemensSIMATIC IPC277G PRObefore V28.01.14V28.01.14
SiemensSIMATIC IPC3000 SMART V3all versionsNot stated
SiemensSIMATIC IPC327Gbefore V28.01.14V28.01.14
SiemensSIMATIC IPC347Gall versionsNot stated
SiemensSIMATIC IPC377Gbefore V28.01.14V28.01.14
SiemensSIMATIC IPC427Ebefore V21.01.21V21.01.21
SiemensSIMATIC IPC477Ebefore V21.01.21V21.01.21

Version data comes from the organisation that assigned the CVE; 7 further products are omitted here. 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
HighAdministrator-level access is required first.
User interaction
NoneNo action by a victim is required.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
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:H/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (siemens.com).

Scoring systemScoreSeverityScored by
CVSS 4.08.4HighCNA (siemens.com)
CVSS 3.18.2HighCNA (siemens.com)

Official description

A vulnerability has been identified in SIMATIC Field PG M5 (All versions), SIMATIC Field PG M6 (All versions < V26.01.12), SIMATIC IPC BX-21A (All versions < V31.01.07), SIMATIC IPC BX-32A (All versions < V29.01.07), SIMATIC IPC BX-39A (All versions < V29.01.07), SIMATIC IPC BX-59A (All versions < V32.01.04), SIMATIC IPC PX-32A (All versions < V29.01.07), SIMATIC IPC PX-39A (All versions < V29.01.07), SIMATIC IPC PX-39A PRO (All versions < V29.01.07), SIMATIC IPC RC-543A (All versions < V36.01.03), SIMATIC IPC RC-543B (All versions < V35.01.12), SIMATIC IPC RW-543A (All versions < V1.1.4), SIMATIC IPC RW-543B (All versions < V35.02.10), SIMATIC IPC127E (All versions < V27.01.11), SIMATIC IPC227E (All versions), SIMATIC IPC227G (All versions < V28.01.14), SIMATIC IPC277E (All versions), SIMATIC IPC277G (All versions < V28.01.14), SIMATIC IPC277G PRO (All versions < V28.01.14), SIMATIC IPC3000 SMART V3 (All versions), SIMATIC IPC327G (All versions < V28.01.14), SIMATIC IPC347G (All versions), SIMATIC IPC377G (All versions < V28.01.14), SIMATIC IPC427E (All versions < V21.01.21), SIMATIC IPC477E (All versions < V21.01.21), SIMATIC IPC477E PRO (All versions < V21.01.21), SIMATIC IPC527G (All versions), SIMATIC IPC627E (All versions < V25.02.15), SIMATIC IPC647E (All versions < V25.02.15), SIMATIC IPC677E (All versions < V25.02.15), SIMATIC IPC847E (All versions < V25.02.15), SIMATIC ITP1000 (All versions). The affected devices have insufficient protection mechanism for the EFI(Extensible Firmware Interface) variables stored on the device. This could allow an authenticated attacker to disable the BIOS password without proper authorization by directly communicate with the flash controller.

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

The underlying weakness: Protection Mechanism Failure

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

More Protection Mechanism Failure vulnerabilities (CWE-693)

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

Other vulnerabilities in SIMATIC Field PG M5

All SIMATIC Field PG M5 vulnerabilities

Recent Protection Mechanism Failure vulnerabilities

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