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PatchSiren cyber security CVE debrief

CVE-2019-6268 RAD Data Communications CVE debrief

CVE-2019-6268 is a directory traversal vulnerability affecting RAD Data Communications SecFlow-2 industrial devices. The vulnerability allows unauthenticated remote attackers to access arbitrary files on the device by crafting HTTP requests with URIs beginning with /... This path traversal technique bypasses intended access controls and enables reading of sensitive system files, as demonstrated by successful retrieval of /etc/shadow containing password hashes. The vulnerability exists in SecFlow-2 devices with Hardware 0202, Firmware 4.1.01.63, and U-Boot 2010.12. The CVSS 3.1 score of 7.5 (HIGH) reflects the network attack vector, low attack complexity, no required privileges, and high confidentiality impact. Notably, this CVE was published by CISA on June 18, 2024, despite the 2019 CVE identifier, indicating a significant delay between vulnerability discovery/existence and formal advisory publication. RAD Data Communications has declared SecFlow-2 end-of-life with no patches planned, directing customers to migrate to the SecFlow-1p product line as the remediation path.

Vendor
RAD Data Communications
Product
SecFlow-2
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2024-06-18
Original CVE updated
2024-06-18
Advisory published
2024-06-18
Advisory updated
2024-06-18

Who should care

Organizations operating RAD SecFlow-2 devices in industrial networks, particularly utilities, telecommunications carriers, and critical infrastructure operators using these devices for secure flow management. Security teams responsible for OT/ICS asset management, network architects designing perimeter security for industrial environments, and compliance officers tracking end-of-life equipment status should prioritize this vulnerability.

Technical summary

The vulnerability stems from improper input validation in the device's HTTP request handling. By prefixing URIs with /.., attackers can traverse outside the intended web root directory structure. The affected stack includes Hardware 0202, Firmware 4.1.01.63, and U-Boot 2010.12. Successful exploitation requires no authentication and yields high confidentiality impact through arbitrary file read capabilities. The attack is remotely exploitable with low complexity, making automated exploitation feasible. No integrity or availability impacts are associated with this vulnerability per CVSS scoring.

Defensive priority

HIGH

Recommended defensive actions

  • Inventory all RAD SecFlow-2 deployments, prioritizing internet-facing or perimeter-connected devices
  • Plan migration to RAD SecFlow-1p product line as recommended by vendor
  • Implement network segmentation to restrict SecFlow-2 device access to authorized management hosts only
  • Deploy web application firewall or proxy rules to block URI patterns beginning with /..
  • Monitor for anomalous HTTP requests containing path traversal sequences
  • Review authentication logs and file access patterns for indicators of compromise
  • Apply CISA ICS recommended practices for defense-in-depth architecture
  • Consider disabling remote web management interfaces where operational requirements permit

Evidence notes

The vulnerability is confirmed through CISA's CSAF-formatted advisory with specific product version identification. The directory traversal mechanism (/.. prefix) and proof-of-concept demonstration via /etc/shadow access are documented in the source material. Vendor end-of-life status and migration recommendation to SecFlow-1p are explicitly stated in remediation guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-6268 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-6268

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

  • CVE-2019-6268 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-6268

    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-24-170-01.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-24-170-01

    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.