Siemens RUGGEDCOM ROX, SIMATIC S7-1500 Improper Certificate Validation (CVE-2022-27782)

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

include('compat.inc');

if (description)
{
  script_id(503989);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/05");

  script_cve_id("CVE-2022-27782");
  script_xref(name:"ICSA", value:"23-194-01");

  script_name(english:"Siemens RUGGEDCOM ROX, SIMATIC S7-1500 Improper Certificate Validation (CVE-2022-27782)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"libcurl would reuse a previously created connection even when a TLS or
SSHrelated option had been changed that should have prohibited
reuse.libcurl keeps previously used connections in a connection pool
for subsequenttransfers to reuse if one of them matches the setup.
However, several TLS andSSH settings were left out from the
configuration match checks, making themmatch too easily.

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-146325.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/ww/en/view/109821187/");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-23-194-01");
  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 recommends users update the product to the following versions:

- Update to V2.16.0 or later version

As a general security measure, Siemens strongly recommends protecting network access to devices with appropriate
mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to 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 at:
https://www.siemens.com/industrialsecurity

For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens
ProductCERT: https://www.siemens.com/cert/advisories

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-146325 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:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-27782");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(295);

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/07/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/07/11");
  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_rox_mx5000_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rox_mx5000re_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rox_rx1400_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rox_rx1500_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rox_rx1501_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rox_rx1510_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rox_rx1511_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rox_rx1512_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rox_rx1524_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rox_rx1536_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rox_rx5000_firmware");
  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_rox_mx5000_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "cpe:/o:siemens:ruggedcom_rox_mx5000re_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "cpe:/o:siemens:ruggedcom_rox_rx1400_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "cpe:/o:siemens:ruggedcom_rox_rx1500_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "cpe:/o:siemens:ruggedcom_rox_rx1501_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "cpe:/o:siemens:ruggedcom_rox_rx1510_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "cpe:/o:siemens:ruggedcom_rox_rx1511_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "cpe:/o:siemens:ruggedcom_rox_rx1512_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "cpe:/o:siemens:ruggedcom_rox_rx1524_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "cpe:/o:siemens:ruggedcom_rox_rx1536_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "cpe:/o:siemens:ruggedcom_rox_rx5000_firmware" :
        {"versionEndExcluding" : "2.16.0", "family" : "RuggedCom"},
    "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);