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PatchSiren cyber security CVE debrief

CVE-2023-5702 Viessmann Climate Solutions SE CVE debrief

A vulnerability in Viessmann Vitogate 300 versions 2.1.3.0 and prior allows direct request manipulation via the /cgi-bin/ file path. The issue, published September 10, 2024, carries a CVSS 3.1 score of 6.5 (MEDIUM) with an attack vector of adjacent network, low attack complexity, and no required privileges or user interaction. The confidentiality impact is rated HIGH while integrity and availability impacts are NONE. Viessmann Climate Solutions SE recommends updating to version 3.0.0.0 to remediate this vulnerability.

Vendor
Viessmann Climate Solutions SE
Product
Viessmann Vitogate 300
CVSS
MEDIUM 6.5
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 Viessmann Vitogate 300 devices in building automation, heating control, or industrial environments; OT security teams managing HVAC and energy management systems; facilities managers with Viessmann heating infrastructure.

Technical summary

The vulnerability exists in an unknown functionality of the /cgi-bin/ file path in Viessmann Vitogate 300 firmware versions 2.1.3.0 and earlier. The manipulation leads to direct request, which may allow unauthorized access to sensitive information. The attack requires adjacent network access but no authentication. The CVSS 4.0 vector (AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N) confirms high confidentiality impact with no integrity or availability impact.

Defensive priority

medium

Recommended defensive actions

  • Update Viessmann Vitogate 300 to version 3.0.0.0 or later
  • Review network segmentation to limit adjacent network access to Vitogate 300 devices
  • Monitor access logs for unusual requests to /cgi-bin/ paths
  • Apply CISA ICS recommended practices for industrial control system security

Evidence notes

Source: CISA CSAF advisory ICSA-24-254-01. Affected product confirmed as Viessmann Vitogate 300 versions 2.1.3.0 and prior. CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Sources and references

Verified primary and authoritative sources

  • CVE-2023-5702 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2023-5702

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

  • CVE-2023-5702 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2023-5702

    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-24-254-01.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-24-254-01

    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.