PT-2024-4458 · Siemens · Simatic Cn 4100

Martin Floeck + 1 · Published 2024-05-14 · Updated 2024-05-15 · CVE-2024-32741

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions SIMATIC CN 4100 versions prior to V3.0

Description A vulnerability has been identified in the SIMATIC CN 4100 device, where it contains a hard-coded password used for the privileged system user root and for the boot loader GRUB by default. This issue is related to the use of pre-installed credentials. If an attacker manages to crack the password hash, they can gain root access to the device, allowing for unauthorized access with root privileges.

Recommendations For versions prior to V3.0, consider changing the default password for the root user and the GRUB boot loader to a strong, unique password to prevent unauthorized access. As a temporary workaround, restrict access to the device to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-259

Related Identifiers

BDU:2024-04960

CVE-2024-32741

Affected Products

Simatic Cn 4100

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2024-32741 · Security Note
• https://cert-portal.siemens.com/productcert/html/ssa-273900.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-32741 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-04960 · Security Note
• https://safe-surf.ru/upload/VULN-new/VULN.2024-05-17.1.pdf · Security Note
• https://t.me/pentestingnews/46963 · Telegram Post
• https://cisa.gov/news-events/ics-advisories/icsa-24-137-06 · Note