Siemens SIMATIC and SCALANCE Type Confusion (CVE-2024-6119)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(502907);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/14");

  script_cve_id("CVE-2024-6119");
  script_xref(name:"ICSA", value:"25-044-09");

  script_name(english:"Siemens SIMATIC and SCALANCE Type Confusion (CVE-2024-6119)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"Applications performing certificate name checks (e.g., TLS clients
checking server certificates) may attempt to read an invalid memory
address resulting in abnormal termination of the application process.
Impact summary: Abnormal termination of an application can a cause a
denial of service. Applications performing certificate name checks
(e.g., TLS clients checking server certificates) may attempt to read
an invalid memory address when comparing the expected name with an
`otherName` subject alternative name of an X.509 certificate. This may
result in an exception that terminates the application program. Note
that basic certificate chain validation (signatures, dates, ...) is
not affected, the denial of service can occur only when the
application also specifies an expected DNS name, Email address or IP
address. TLS servers rarely solicit client certificates, and even when
they do, they generally don't perform a name check against a reference
identifier (expected identity), but rather extract the presented
identity after checking the certificate chain. So TLS servers are
generally not affected and the severity of the issue is Moderate. The
FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/html/ssa-769027.html");
  script_set_attribute(attribute:"see_also", value:"https://support.industry.siemens.com/cs/ww/en/view/109977720/");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-25-044-09");
  # https://cert-portal.siemens.com/productcert/html/ssa-082556.html#cve-2024-6119
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b6c86469");
  script_set_attribute(attribute:"solution", value:
"The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original
can be found at CISA.gov.

Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk:

- All affected products: Update to V3.0.0 or later version

As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To
operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens'
operational guidelines for industrial security and following recommendations in the product manuals.

Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage

For more information see the associated Siemens security advisory SSA-769027 in HTML and CSAF.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-6119");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(843);

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/02/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/02/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/02/24");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wab762-1_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wam763-1_%28me%29_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wam763-1_%28us%29_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wam763-1_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wam766-1_%28me%29_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wam766-1_%28us%29_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wam766-1_eec_%28me%29_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wam766-1_eec_%28us%29_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wam766-1_eec_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wam766-1_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wub762-1_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wub762-1_ifeatures_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wum763-1_%28us%29_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wum763-1_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wum766-1_%28me%29_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wum766-1_%28usa%29_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_wum766-1_firmware:3.0.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:simatic_s7-1500_cpu_firmware:3.1.5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:siplus_s7-1500_cpu_firmware:3.1.5");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/Siemens");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Siemens');

var asset = tenable_ot::assets::get(vendor:'Siemens');

var vuln_cpes = {
    "cpe:/o:siemens:scalance_wab762-1_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5762-1AJ00-6AA0']},
    "cpe:/o:siemens:scalance_wam763-1_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5763-1AL00-7DA0']},
    "cpe:/o:siemens:scalance_wam763-1_%28me%29_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5763-1AL00-7DC0']},
    "cpe:/o:siemens:scalance_wam763-1_%28us%29_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5763-1AL00-7DB0']},
    "cpe:/o:siemens:scalance_wam766-1_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5766-1GE00-7DA0']},
    "cpe:/o:siemens:scalance_wam766-1_%28me%29_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5766-1GE00-7DC0']},
    "cpe:/o:siemens:scalance_wam766-1_%28us%29_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5766-1GE00-7DB0']},
    "cpe:/o:siemens:scalance_wam766-1_eec_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5766-1GE00-7TA0']},
    "cpe:/o:siemens:scalance_wam766-1_eec_%28me%29_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5766-1GE00-7TC0']},
    "cpe:/o:siemens:scalance_wam766-1_eec_%28us%29_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5766-1GE00-7TB0']},
    "cpe:/o:siemens:scalance_wub762-1_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5762-1AJ00-1AA0']},
    "cpe:/o:siemens:scalance_wub762-1_ifeatures_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5762-1AJ00-2AA0']},
    "cpe:/o:siemens:scalance_wum763-1_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5763-1AL00-3AA0', '6GK5763-1AL00-3DA0']},
    "cpe:/o:siemens:scalance_wum763-1_%28us%29_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5763-1AL00-3DB0', '6GK5763-1AL00-3AB0']},
    "cpe:/o:siemens:scalance_wum766-1_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5766-1GE00-3DA0']},
    "cpe:/o:siemens:scalance_wum766-1_%28me%29_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5766-1GE00-3DC0']},
    "cpe:/o:siemens:scalance_wum766-1_%28usa%29_firmware:3.0.0" :
        {"versionEndExcluding" : "3.0.0", "family" : "SCALANCEW", "orderNumbers" : ['6GK5766-1GE00-3DB0']},
    "cpe:/o:siemens:simatic_s7-1500_cpu_firmware:3.1.5" :
        {"versionStartIncluding" : "3.1.5", "family" : "S71500", "orderNumbers" : ['6ES7518-4FX00-1AC0', '6ES7518-4AX00-1AB0', '6ES7518-4FX00-1AB0', '6ES7518-4AX00-1AC0']},
    "cpe:/o:siemens:siplus_s7-1500_cpu_firmware:3.1.5" :
        {"versionStartIncluding" : "3.1.5", "family" : "S71500", "orderNumbers" : ['6AG1518-4AX00-4AC0']}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_HOLE);