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CVE-2024-7986 Rockwell Automation CVE debrief

A vulnerability in Rockwell Automation ThinManager ThinServer allows local attackers to disclose sensitive information by abusing the ThinServer service to read arbitrary files through directory junction manipulation. The flaw requires local access and low privileges, with no user interaction needed. Rockwell Automation has released patched versions across multiple release branches.

Vendor
Rockwell Automation
Product
ThinManager ThinServer
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2024-08-29
Original CVE updated
2024-08-29
Advisory published
2024-08-29
Advisory updated
2024-08-29

Who should care

Organizations operating Rockwell Automation ThinManager ThinServer in industrial environments, particularly those in manufacturing, energy, and critical infrastructure sectors where ThinManager is deployed for centralized thin client management. Security teams responsible for OT/ICS asset protection and patch management should prioritize assessment.

Technical summary

The ThinServer service in Rockwell Automation ThinManager contains an information disclosure vulnerability. A threat actor with local access and low privileges can create a directory junction (symbolic link) that points to a target directory, then abuse the ThinServer service to read arbitrary files from that location. This allows sensitive information disclosure without requiring user interaction. The vulnerability is rated CVSS 3.1 5.5 (MEDIUM) with a confidentiality impact of HIGH. Multiple version branches are affected spanning 11.1.x through 13.2.x, with patches available for all supported branches.

Defensive priority

medium

Recommended defensive actions

  • Upgrade ThinManager ThinServer to patched versions: 11.1.8 or later, 11.2.9 or later, 12.0.7 or later, 12.1.8 or later, 13.0.5 or later, 13.1.3 or later, or 13.2.2 or later
  • Apply Rockwell Automation security best practices for industrial control systems
  • Review and implement CISA ICS recommended practices for defense in depth
  • Monitor for unauthorized directory junction creation on ThinServer hosts
  • Restrict local access to ThinServer systems to authorized personnel only

Evidence notes

Vulnerability disclosed via CISA ICS Advisory ICSA-24-242-01 on 2024-08-29. CVSS 3.1 score of 5.5 (MEDIUM) with vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. Affects ThinManager ThinServer versions 11.1.0-11.1.6, 11.2.0-11.2.7, 12.0.0-12.0.5, 12.1.0-12.1.6, 13.0.0-13.0.3, 13.1.0-13.1.1, and 13.2.0.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-7986 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-7986

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

  • CVE-2024-7986 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-7986

    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-24-242-01.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-24-242-01

    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/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf

    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

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B

    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.