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ICSA-24-284-04: Siemens SENTRON PAC3200 Devices ↗ source

October 10, 2024 CISA ICS Advisory

Summary

SENTRON PAC3200 only provide a 4-digit PIN to protect from administrative access via Modbus TCP interface. Attackers with access to the Modbus TCP interface could easily bypass this protection by brute-force attacks or by monitoring the Modbus cleartext communication. Siemens recommends specific countermeasures for products where fixes are not, or not yet available. CVE-2024-41798: Affected devices only provide a 4-digit PIN to protect from administrative access via Modbus TCP interface. Attackers with access to the Modbus TCP interface could easily bypass this protection by brute-force attacks or by sniffing the Modbus clear text communication.

Advisory Details CISA ICS CSAF feed

Advisory ID
ICSA-24-284-04
Status
Final · version 1
Initial release
2024-10-08
Last revised
2024-10-08
Vendor
Siemens
Critical infrastructure sectors
Multiple
Deployed
Worldwide
Vendor headquarters
Germany

Republished vendor advisory. This CISA CSAF advisory was converted from Siemens ProductCERT's CSAF advisory.

General Recommendations: As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories

Credit: Siemens ProductCERT

Affected products (1)
  • SENTRON 7KM PAC3200 — all versions

From CISA's machine-readable CSAF 2.0 advisory (JSON).

Vulnerabilities as Stated by the Advisory

CVEWeaknessCVSS v3Details
CVE-2024-41798 CWE-287 Improper Authentication 9.8 Critical CVE-2024-41798
Affected devices only provide a 4-digit PIN to protect from administrative access via Modbus TCP interface. Attackers with access to the Modbus TCP interface could easily bypass this protection by brute-force attacks or by sniffing the Modbus clear text communication.

Mitigation: Consider the PIN as protection against unauthorized operation (i.e., protection against inadvertent operating errors), not as protection against malicious access attempts, such as through brute-force attacks; for details see the FAQ article at https://support…

No fix planned: Currently no fix is planned

Affected, fixed & timeline

Affected:

  • SENTRON 7KM PAC3200 all versions

Scores and weakness types are as CISA or the republishing vendor stated them in this advisory; the linked CVE pages carry the independently enriched CVSS and SSVC assessments.

News Coverage

No coverage found in monitored research blogs or news feeds.

CVEs Referenced in This Publication

CVECVSSAffected
CVE-2024-41798 9.8 Critical Siemens SENTRON 7KM PAC3200 A vulnerability has been identified in SENTRON 7KM PAC3200 (All versions). Affected devices only provide a 4-digit PIN to protect from administrative…

Named by the advisory itself. Each CVE links to its tracked detail page.

Vendors Named in This Publication

Each vendor links to its Known Exploited Vulnerabilities catalog page. Only vendors that appear in the KEV catalog are listed, either because the publication cites one of their KEV entries or because it names them directly.