Siemens SCALANCE, SIMATIC S7-1500 Use After Free (CVE-2022-23308)

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

include('compat.inc');

if (description)
{
  script_id(504132);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/05");

  script_cve_id("CVE-2022-23308");
  script_xref(name:"ICSA", value:"23-075-01");

  script_name(english:"Siemens SCALANCE, SIMATIC S7-1500 Use After Free (CVE-2022-23308)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF
attributes.

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/pdf/ssa-419740.pdf");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/pdf/ssa-942865.pdf");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/html/ssa-398330.html");
  script_set_attribute(attribute:"see_also", value:"https://support.industry.siemens.com/cs/ww/en/view/109478459/");
  script_set_attribute(attribute:"see_also", value:"https://support.industry.siemens.com/cs/document/109817007/");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-23-075-01");
  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: 

- Update all of the affected products to v7.2 or later version or the software.

As a general security measure, Siemens strongly recommends users protect network access to devices with appropriate
mechanisms. To operate the devices in a protected IT environment, Siemens recommends users configure the environment
according to Siemens' operational guidelines for Industrial Security, and to follow the recommendations in the product
manuals. Additional information on Industrial Security by Siemens can be found on the Siemens page for Industrial
Security.

For further inquiries on security vulnerabilities in Siemens products and solutions, contact the Siemens ProductCERT. 

For more information, see the associated Siemens security advisory SSA-419740 in HTML and CSAF.");
  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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-23308");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(416);

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/03/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/03/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/13");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rm1224_lte%284g%29_eu_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rm1224_lte%284g%29_nam_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m804pb_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m812-1_adsl-router_%28annex_a%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m812-1_adsl-router_%28annex_b%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m816-1_adsl-router_%28annex_a%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m816-1_adsl-router_%28annex_b%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m826-2_shdsl-router_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m874-2_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m874-3_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m876-3_%28evdo%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m876-3_%28rok%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m876-4_%28eu%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m876-4_%28nam%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_m876-4_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_mum853-1_%28eu%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_mum856-1_%28eu%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_mum856-1_%28row%29_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_s615_eec_firmware:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_s615_firmware:7.2");
  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:ruggedcom_rm1224_lte%284g%29_eu_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "RuggedCom", "orderNumbers" : ['6GK6108-4AM00-2BA2']},
    "cpe:/o:siemens:ruggedcom_rm1224_lte%284g%29_nam_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "RuggedCom", "orderNumbers" : ['6GK6108-4AM00-2DA2']},
    "cpe:/o:siemens:scalance_m804pb_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5804-0AP00-2AA2']},
    "cpe:/o:siemens:scalance_m812-1_adsl-router_%28annex_a%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5812-1AA00-2AA2']},
    "cpe:/o:siemens:scalance_m812-1_adsl-router_%28annex_b%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5812-1BA00-2AA2']},
    "cpe:/o:siemens:scalance_m816-1_adsl-router_%28annex_a%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5816-1AA00-2AA2']},
    "cpe:/o:siemens:scalance_m816-1_adsl-router_%28annex_b%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5816-1BA00-2AA2']},
    "cpe:/o:siemens:scalance_m826-2_shdsl-router_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5826-2AB00-2AB2']},
    "cpe:/o:siemens:scalance_m874-2_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5874-2AA00-2AA2']},
    "cpe:/o:siemens:scalance_m874-3_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5874-3AA00-2AA2']},
    "cpe:/o:siemens:scalance_m876-3_%28evdo%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5876-3AA02-2BA2']},
    "cpe:/o:siemens:scalance_m876-3_%28rok%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5876-3AA02-2EA2']},
    "cpe:/o:siemens:scalance_m876-4_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5876-4AA10-2BA2']},
    "cpe:/o:siemens:scalance_m876-4_%28eu%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5876-4AA00-2BA2']},
    "cpe:/o:siemens:scalance_m876-4_%28nam%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5876-4AA00-2DA2']},
    "cpe:/o:siemens:scalance_mum853-1_%28eu%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5853-2EA00-2DA1']},
    "cpe:/o:siemens:scalance_mum856-1_%28eu%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5856-2EA00-3DA1']},
    "cpe:/o:siemens:scalance_mum856-1_%28row%29_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCEM", "orderNumbers" : ['6GK5856-2EA00-3AA1']},
    "cpe:/o:siemens:scalance_s615_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCES", "orderNumbers" : ['6GK5615-0AA00-2AA2']},
    "cpe:/o:siemens:scalance_s615_eec_firmware:7.2" :
        {"versionEndExcluding" : "7.2", "family" : "SCALANCES", "orderNumbers" : ['6GK5615-0AA01-2AA2']},
    "cpe:/o:siemens:simatic_s7-1500_cpu_firmware:3.1.5" :
        {"versionEndExcluding" : "3.1.5", "versionStartIncluding" : "3.1.0", "family" : "S71500", "orderNumbers" : ['6ES7518-4AX00-1AB0', '6ES7518-4FX00-1AC0', '6ES7518-4AX00-1AC0', '6ES7518-4FX00-1AB0']},
    "cpe:/o:siemens:siplus_s7-1500_cpu_firmware:3.1.5" :
        {"versionEndExcluding" : "3.1.5", "versionStartIncluding" : "3.1.0", "family" : "S71500", "orderNumbers" : ['6AG1518-4AX00-4AC0']}
};

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