Siemens SCALANCE X-200RNA Switch Devices Exposure of Sensitive Information to an Unauthorized Actor (CVE-2016-0702)

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

include('compat.inc');

if (description)
{
  script_id(503071);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/03/13");

  script_cve_id("CVE-2016-0702");
  script_xref(name:"ICSA", value:"22-349-21");

  script_name(english:"Siemens SCALANCE X-200RNA Switch Devices Exposure of Sensitive Information to an Unauthorized Actor (CVE-2016-0702)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The MOD_EXP_CTIME_COPY_FROM_PREBUF function in crypto/bn/bn_exp.c in
OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not properly
consider cache-bank access times during modular exponentiation, which
makes it easier for local users to discover RSA keys by running a
crafted application on the same Intel Sandy Bridge CPU core as a
victim and leveraging cache-bank conflicts, aka a CacheBleed attack.

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-412672.pdf");
  script_set_attribute(attribute:"see_also", value:"https://support.industry.siemens.com/cs/ww/en/view/109814809/");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-22-349-21");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/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-2016-0702");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(200);

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/12/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/12/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/13");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_x204rna_%28hsr%29_firmware:3.2.7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_x204rna_%28prp%29_firmware:3.2.7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_x204rna_eec_%28hsr%29_firmware:3.2.7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_x204rna_eec_%28prp%29_firmware:3.2.7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_x204rna_eec_%28prp%2fhsr%29_firmware:3.2.7");
  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 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_x204rna_%28hsr%29_firmware:3.2.7" :
        {"versionEndExcluding" : "3.2.7", "family" : "SCALANCEX200", "orderNumbers" : ['6GK5204-0BA00-2MB2']},
    "cpe:/o:siemens:scalance_x204rna_%28prp%29_firmware:3.2.7" :
        {"versionEndExcluding" : "3.2.7", "family" : "SCALANCEX200", "orderNumbers" : ['6GK5204-0BA00-2KB2']},
    "cpe:/o:siemens:scalance_x204rna_eec_%28hsr%29_firmware:3.2.7" :
        {"versionEndExcluding" : "3.2.7", "family" : "SCALANCEX200", "orderNumbers" : ['6GK5204-0BS00-2NA3']},
    "cpe:/o:siemens:scalance_x204rna_eec_%28prp%29_firmware:3.2.7" :
        {"versionEndExcluding" : "3.2.7", "family" : "SCALANCEX200", "orderNumbers" : ['6GK5204-0BS00-3LA3']},
    "cpe:/o:siemens:scalance_x204rna_eec_%28prp%2fhsr%29_firmware:3.2.7" :
        {"versionEndExcluding" : "3.2.7", "family" : "SCALANCEX200", "orderNumbers" : ['6GK5204-0BS00-3PA3']}
};

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