Siemens SIMATIC CN 4100 up to 2.x GRUB hard-coded password

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Siemens SIMATIC CN 4100 up to 2.x. It has been rated as critical. Affected is an unknown function of the component GRUB. The manipulation leads to hard-coded password. This vulnerability is documented as CVE-2024-32741. The attack needs to be performed locally. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Siemens SIMATIC CN 4100 up to 2.x. It has been rated as critical. This issue affects an unknown function of the component GRUB. The manipulation with an unknown input leads to a hard-coded password vulnerability. Using CWE to declare the problem leads to CWE-259. The product contains a hard-coded password, which it uses for its own inbound authentication or for outbound communication to external components. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V3.0). The affected device contains hard coded password which is used for the privileged system user `root` and for the boot loader `GRUB` by default . An attacker who manages to crack the password hash gains root access to the device.

It is possible to read the advisory at cert-portal.siemens.com. The identification of this vulnerability is CVE-2024-32741 since 04/17/2024. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1078.001 according to MITRE ATT&CK.

Upgrading to version 3.0 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.2
VulDB Meta Temp Score: 9.0

VulDB Base Score: 8.4
VulDB Temp Score: 8.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 10.0
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Hard-coded password
CWE: CWE-259 / CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SIMATIC CN 4100 3.0

Timelineinfo

04/17/2024 🔍
05/14/2024 +27 days 🔍
05/14/2024 +0 days 🔍
08/21/2025 +464 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-273900
Status: Confirmed

CVE: CVE-2024-32741 (🔍)
GCVE (CVE): GCVE-0-2024-32741
GCVE (VulDB): GCVE-100-264131

Entryinfo

Created: 05/14/2024 13:41
Updated: 08/21/2025 15:42
Changes: 05/14/2024 13:41 (65), 08/21/2025 15:42 (2)
Complete: 🔍
Cache ID: 216:0CC:103

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