MediumCVE-2024-30189

    Siemens SCALANCE: Authentication Bypass by Spoofing (CVE-2024-30189)

    Published Sources: Siemens ProductCERT, CVE.org

    Share

    What is affected, what to do

    A vulnerability has been identified in SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AA0) (All versions), SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AB0) (All versions), SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AA0) (All versions), SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AB0) (All versions), SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AC0) (All versions), SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA0) (All versions), SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA6) (All versions), SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AB0) (All versions), SCALANCE W734-1 RJ45 (USA) (6GK5734-1FX00-0AB6) (All versions), SCALANCE W738-1 M12 (6GK5738-1GY00-0AA0) (All versions), SCALANCE W738-1 M12 (6GK5738-1GY00-0AB0) (All versions), SCALANCE W748-1 M12 (6GK5748-1GD00-0AA0) (All versions), SCALANCE W748-1 M12 (6GK5748-1GD00-0AB0) (All versions), SCALANCE W748-1 RJ45 (6GK5748-1FC00-0AA0) (All versions), SCALANCE W748-1 RJ45 (6GK5748-1FC00-0AB0) (All versions), SCALANCE W761-1 RJ45 (6GK5761-1FC00-0AA0) (All versions), SCALANCE W761-1 RJ45 (6GK5761-1FC00-0AB0) (All versions), SCALANCE W774-1 M12 EEC (6GK5774-1FY00-0TA0) (All versions), SCALANCE W774-1 M12 EEC (6GK5774-1FY00-0TB0) (All versions), SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AA0) (All versions), SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AA6) (All versions), SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AB0) (All versions), SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AC0) (All versions), SCALANCE W774-1 RJ45 (USA) (6GK5774-1FX00-0AB6) (All versions), SCALANCE W778-1 M12 (6GK5778-1GY00-0AA0) (All versions), SCALANCE W778-1 M12 (6GK5778-1GY00-0AB0) (All versions), SCALANCE W778-1 M12 EEC (6GK5778-1GY00-0TA0) (All versions), SCALANCE W778-1 M12 EEC (USA) (6GK5778-1GY00-0TB0) (All versions), SCALANCE W786-1 RJ45 (6GK5786-1FC00-0AA0) (All versions), SCALANCE W786-1 RJ45 (6GK5786-1FC00-0AB0) (All versions), SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AA0) (All versions), SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AB0) (All versions), SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AC0) (All versions), SCALANCE W786-2 SFP (6GK5786-2FE00-0AA0) (All versions), SCALANCE W786-2 SFP (6GK5786-2FE00-0AB0) (All versions), SCALANCE W786-2IA RJ45 (6GK5786-2HC00-0AA0) (All versions), SCALANCE W786-2IA RJ45 (6GK5786-2HC00-0AB0) (All versions), SCALANCE W788-1 M12 (6GK5788-1GD00-0AA0) (All versions), SCALANCE W788-1 M12 (6GK5788-1GD00-0AB0) (All versions), SCALANCE W788-1 RJ45 (6GK5788-1FC00-0AA0) (All versions), SCALANCE W788-1 RJ45 (6GK5788-1FC00-0AB0) (All versions), SCALANCE W788-2 M12 (6GK5788-2GD00-0AA0) (All versions), SCALANCE W788-2 M12 (6GK5788-2GD00-0AB0) (All versions), SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TA0) (All versions), SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TB0) (All versions), SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TC0) (All versions), SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AA0) (All versions), SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AB0) (All versions), SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AC0) (All versions). This CVE refers to Scenario 1 "Leak frames from the Wi-Fi queue" of CVE-2022-47522.

    The available sources name no fixed version. Check the vendor guidance in the references below.

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    6.1

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: Vendor (CNA), CVSS v3

    6.1

    CVSS v3

    Severity Medium on the scale from 0 to 10.

    Source: Siemens ProductCERT, CVE.org

    0.2 %

    EPSS score

    Low — model estimates < 1% exploitation likelihood.

    Source: FIRST EPSS, percentile 11.7

    Show all metrics
    Severity
    Medium
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    36.46 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    6.1 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    6.1
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    0.2 %
    Low — model estimates < 1% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    11.7
    Elevated — this CVE ranks above at least 10% of all CVEs scored today.
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published
    CISA assessment (SSVC)
    Exploitation: none known · not automatable · Technical impact: partial
    Source: CISA Vulnrichment, as of 29 July 2024
    CWE

    CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.

    Read in glossary
    CWE-290

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    A vulnerability has been identified in SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AA0) (All versions), SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AB0) (All versions), SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AA0) (All versions), SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AB0) (All versions), SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AC0) (All versions), SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA0) (All versions), SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA6) (All versions), SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AB0) (All versions), SCALANCE W734-1 RJ45 (USA) (6GK5734-1FX00-0AB6) (All versions), SCALANCE W738-1 M12 (6GK5738-1GY00-0AA0) (All versions), SCALANCE W738-1 M12 (6GK5738-1GY00-0AB0) (All versions), SCALANCE W748-1 M12 (6GK5748-1GD00-0AA0) (All versions), SCALANCE W748-1 M12 (6GK5748-1GD00-0AB0) (All versions), SCALANCE W748-1 RJ45 (6GK5748-1FC00-0AA0) (All versions), SCALANCE W748-1 RJ45 (6GK5748-1FC00-0AB0) (All versions), SCALANCE W761-1 RJ45 (6GK5761-1FC00-0AA0) (All versions), SCALANCE W761-1 RJ45 (6GK5761-1FC00-0AB0) (All versions), SCALANCE W774-1 M12 EEC (6GK5774-1FY00-0TA0) (All versions), SCALANCE W774-1 M12 EEC (6GK5774-1FY00-0TB0) (All versions), SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AA0) (All versions), SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AA6) (All versions), SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AB0) (All versions), SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AC0) (All versions), SCALANCE W774-1 RJ45 (USA) (6GK5774-1FX00-0AB6) (All versions), SCALANCE W778-1 M12 (6GK5778-1GY00-0AA0) (All versions), SCALANCE W778-1 M12 (6GK5778-1GY00-0AB0) (All versions), SCALANCE W778-1 M12 EEC (6GK5778-1GY00-0TA0) (All versions), SCALANCE W778-1 M12 EEC (USA) (6GK5778-1GY00-0TB0) (All versions), SCALANCE W786-1 RJ45 (6GK5786-1FC00-0AA0) (All versions), SCALANCE W786-1 RJ45 (6GK5786-1FC00-0AB0) (All versions), SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AA0) (All versions), SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AB0) (All versions), SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AC0) (All versions), SCALANCE W786-2 SFP (6GK5786-2FE00-0AA0) (All versions), SCALANCE W786-2 SFP (6GK5786-2FE00-0AB0) (All versions), SCALANCE W786-2IA RJ45 (6GK5786-2HC00-0AA0) (All versions), SCALANCE W786-2IA RJ45 (6GK5786-2HC00-0AB0) (All versions), SCALANCE W788-1 M12 (6GK5788-1GD00-0AA0) (All versions), SCALANCE W788-1 M12 (6GK5788-1GD00-0AB0) (All versions), SCALANCE W788-1 RJ45 (6GK5788-1FC00-0AA0) (All versions), SCALANCE W788-1 RJ45 (6GK5788-1FC00-0AB0) (All versions), SCALANCE W788-2 M12 (6GK5788-2GD00-0AA0) (All versions), SCALANCE W788-2 M12 (6GK5788-2GD00-0AB0) (All versions), SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TA0) (All versions), SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TB0) (All versions), SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TC0) (All versions), SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AA0) (All versions), SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AB0) (All versions), SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AC0) (All versions). This CVE refers to Scenario 1 "Leak frames from the Wi-Fi queue" of CVE-2022-47522. Affected devices queue frames in order to subsequently change the security context and leak the queued frames. This could allow a physically proximate attacker to intercept (possibly cleartext) target-destined frames.

    Source: siemens_advisory, NVD (NIST), cvelistv5

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    SiemensSCALANCE W721-1 RJ45
    • —
    • —
    SiemensSCALANCE W722-1 RJ45
    • —
    • —
    SiemensSCALANCE W734-1 RJ45
    • —
    • —
    SiemensSCALANCE W734-1 RJ45 (USA)
    • —
    • —
    SiemensSCALANCE W738-1 M12
    • —
    • —
    SiemensSCALANCE W748-1 M12
    • —
    • —
    SiemensSCALANCE W748-1 RJ45
    • —
    • —
    SiemensSCALANCE W761-1 RJ45
    • —
    • —
    SiemensSCALANCE W774-1 M12 EEC
    • —
    • —
    SiemensSCALANCE W774-1 RJ45
    • —
    • —
    SiemensSCALANCE W774-1 RJ45 (USA)
    • —
    • —
    SiemensSCALANCE W778-1 M12
    • —
    • —
    SiemensSCALANCE W778-1 M12 EEC
    • —
    • —
    SiemensSCALANCE W778-1 M12 EEC (USA)
    • —
    • —
    SiemensSCALANCE W786-1 RJ45
    • —
    • —
    SiemensSCALANCE W786-2 RJ45
    • —
    • —
    SiemensSCALANCE W786-2 SFP
    • —
    • —
    SiemensSCALANCE W786-2IA RJ45
    • —
    • —
    SiemensSCALANCE W788-1 M12
    • —
    • —
    SiemensSCALANCE W788-1 RJ45
    • —
    • —
    SiemensSCALANCE W788-2 M12
    • —
    • —
    SiemensSCALANCE W788-2 M12 EEC
    • —
    • —
    SiemensSCALANCE W788-2 RJ45
    • —
    • —

    Vendors and products

    Weakness classes (CWE)

    • CWE-290Authentication Bypass by Spoofing

      Base

      This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

      Entry at MITRE CWE-290

    References & sources

    Embed badge

    Show the severity and KEV status of this vulnerability on your site – with a link back here. The image is updated hourly.

    Badge preview for CVE-2024-30189
    <a href="https://intel.neosec.eu/en/cve/CVE-2024-30189"><img src="https://intel.neosec.eu/badge/cve/CVE-2024-30189.svg?lang=en" alt="CVE-2024-30189 – NEOSEC Intel" height="20"></a>