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PatchSiren cyber security CVE debrief

CVE-2024-46890 Siemens CVE debrief

A critical input validation vulnerability in Siemens SINEC INS allows authenticated remote attackers with high privileges to execute arbitrary code on the underlying operating system. The flaw exists in specific web API endpoints that fail to properly validate input. Published November 12, 2024, this vulnerability carries a CVSS 9.1 score and requires immediate patching.

Vendor
Siemens
Product
SINEC INS
CVSS
CRITICAL 9.1
CISA KEV
Not listed in stored evidence
Original CVE published
2024-11-12
Original CVE updated
2024-11-12
Advisory published
2024-11-12
Advisory updated
2024-11-12

Who should care

Organizations operating Siemens SINEC INS for industrial network management, particularly in critical infrastructure sectors. Security teams responsible for OT/ICS environments, network administrators managing SINEC INS deployments, and compliance officers tracking industrial cybersecurity vulnerabilities should prioritize this patch.

Technical summary

CVE-2024-46890 is an input validation vulnerability in Siemens SINEC INS, a network management system for industrial environments. The application's web API endpoints do not properly validate input data, enabling an authenticated attacker with high privileges to inject and execute arbitrary code on the underlying operating system. The attack requires network access to the SINEC INS web interface and valid high-privilege credentials, but no user interaction. Successful exploitation grants complete control over the affected system with changed scope impact. Siemens has released V1.0 SP2 Update 3 to remediate this vulnerability.

Defensive priority

critical

Recommended defensive actions

  • Apply vendor fix: Update SINEC INS to V1.0 SP2 Update 3 or later version
  • Restrict network access to SINEC INS web API endpoints to authorized administrative hosts only
  • Monitor for anomalous API requests to SINEC INS endpoints, particularly from unexpected source addresses
  • Review administrative account access and implement principle of least privilege for SINEC INS users
  • Validate that input validation controls are functioning on all SINEC INS web API endpoints after patching

Evidence notes

CISA ICS advisory ICSA-24-319-08 and Siemens security advisory SSA-915275 confirm this vulnerability affects SINEC INS. The CVSS vector (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C) indicates network attack vector, low complexity, high privileges required, no user interaction, changed scope, and high impact across confidentiality, integrity, and availability.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-46890 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-46890

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2024-46890 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-46890

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-319-08.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-915275.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-915275.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-24-319-08

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.