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nessusThis script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.TENABLE_OT_SIEMENS_CVE-2013-5709.NASL
HistoryJan 25, 2023 - 12:00 a.m.

Siemens SCALANCE X-200 switches Insufficient Entropy Source (CVE-2013-5709)

2023-01-2500:00:00
This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
8
siemens
scalance x-200
switches
insufficient entropy source
vulnerability
web server
firmware
remote attackers
hijack sessions
predicting value
tenable.ot

7 High

AI Score

Confidence

Low

0.007 Low

EPSS

Percentile

80.7%

The authentication implementation in the web server on Siemens SCALANCE X-200 switches with firmware before 5.0.0 does not use a sufficient source of entropy for generating values of random numbers, which makes it easier for remote attackers to hijack sessions by predicting a value.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

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

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(500766);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/14");

  script_cve_id("CVE-2013-5709");

  script_name(english:"Siemens SCALANCE X-200 switches Insufficient Entropy Source (CVE-2013-5709)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The authentication implementation in the web server on Siemens
SCALANCE X-200 switches with firmware before 5.0.0 does not use a
sufficient source of entropy for generating values of random numbers,
which makes it easier for remote attackers to hijack sessions by
predicting a value.

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:"http://ics-cert.us-cert.gov/advisories/ICSA-13-254-01");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/pdf/ssa-850708.pdf");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/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:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2013-5709");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(189);

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/09/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/09/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/01/25");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_x-200_series_firmware:-");
  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) 2023 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_x-200_series_firmware" :
        {"versionEndExcluding" : "5.0.1", "family" : "SCALANCEX200"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_HOLE);
VendorProductVersionCPE
siemensscalance_x-200_series_firmware-cpe:/o:siemens:scalance_x-200_series_firmware:-

7 High

AI Score

Confidence

Low

0.007 Low

EPSS

Percentile

80.7%

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