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PatchSiren cyber security CVE debrief

CVE-2024-42344 Siemens CVE debrief

Siemens SINEMA Remote Connect Client logs sensitive configuration data to a file readable by all legitimate users of the underlying system. An authenticated attacker with local access can read these logs to obtain other users' configuration data, compromising confidentiality. The vulnerability was published on September 10, 2024, with a CVSS 3.1 score of 4.4 (Medium). Siemens has released a vendor fix in version 3.2 SP2 or later.

Vendor
Siemens
Product
SINEMA Remote Connect Client
CVSS
MEDIUM 4.4
CISA KEV
Not listed in stored evidence
Original CVE published
2024-09-10
Original CVE updated
2024-09-10
Advisory published
2024-09-10
Advisory updated
2024-09-10

Who should care

Organizations operating Siemens SINEMA Remote Connect Client in industrial environments, particularly those with multi-user systems or shared infrastructure where operators, engineers, or maintenance personnel have interactive logon access to the underlying host operating system. Security teams responsible for OT/ICS asset management and privilege separation should prioritize this fix.

Technical summary

The vulnerability exists in the logging mechanism of SINEMA Remote Connect Client, where sensitive configuration data is written to log files without adequate access controls. The log files are readable by all legitimate users of the underlying operating system, not just the application service account or administrators. This allows any authenticated user with local system access to read the logs and extract other users' configuration data. The attack requires local access (AV:L) and low privileges (PR:L), with no user interaction needed (UI:N). The confidentiality impact is rated low (C:L) as the exposure is limited to configuration data rather than full system compromise.

Defensive priority

medium

Recommended defensive actions

  • Apply the vendor fix by updating SINEMA Remote Connect Client to version 3.2 SP2 or later
  • Review and restrict file system permissions on log directories to enforce least privilege
  • Audit existing log files for exposure of sensitive configuration data and rotate or purge as appropriate
  • Monitor for unauthorized access attempts to application log files
  • Implement defense-in-depth controls per CISA ICS recommended practices for industrial control systems

Evidence notes

CISA ICS advisory ICSA-24-256-10 and Siemens security advisory SSA-417159 document that the affected application inserts sensitive information into a log file with overly permissive read access. The CVSS vector indicates local attack vector, low attack complexity, low privileges required, and low confidentiality impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-42344 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-42344

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

  • CVE-2024-42344 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-42344

    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-24-256-10.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-417159.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-417159.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-24-256-10

    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.