Siemens Improper Restriction of Operations Within the Bounds of a Memory Buffer in Wind River VxWorks (CVE-2019-12261)

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# (C) Tenable, Inc.
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include('compat.inc');

if (description)
{
  script_id(500203);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/15");

  script_cve_id("CVE-2019-12261");
  script_xref(name:"CEA-ID", value:"CEA-2019-0679");

  script_name(english:"Siemens Improper Restriction of Operations Within the Bounds of a Memory Buffer in Wind River VxWorks (CVE-2019-12261)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"Wind River VxWorks 6.7 though 6.9 and vx7 has a Buffer Overflow in the TCP component (issue 3 of 4). This is an IPNET
security vulnerability: TCP Urgent Pointer state confusion during connect() to a remote host.  

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-632562.pdf");
  script_set_attribute(attribute:"see_also", value:"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009");
  script_set_attribute(attribute:"see_also", value:"https://support2.windriver.com/index.php?page=security-notices");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-19-274-01");
  # https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2019-12261
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?06266588");
  script_set_attribute(attribute:"see_also", value:"https://security.netapp.com/advisory/ntap-20190802-0001/");
  # https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c7d3d59d");
  script_set_attribute(attribute:"see_also", value:"https://support.f5.com/csp/article/K41190253");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdf");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/pdf/ssa-352504.pdf");
  script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/security-alerts/cpuoct2020.html");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-19-211-01");
  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.

Wind River has produced controls and patches to mitigate the reported vulnerabilities. To obtain patches, email
[email protected] and indicate the VxWorks major version for which you need source patches.

For more detailed information on the vulnerabilities and the mitigating controls, please see the Wind River advisory at:
https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11/

Additional vendors affected by the reported vulnerabilities have also released security advisories related to their
affected products. Those advisories are as follows:

Rockwell Automation (login required) - https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1088561

Xerox - https://security.business.xerox.com/en-us/news/wind-river-vxworks-ipnet-tcp-ip-stack-vulnerabilities/

Dräger – https://static.draeger.com/security

Schneider Electric – https://www.se.com/ww/en/download/document/SESB-2019-214-01/");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-12261");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(120);

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/08/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/08/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/02/07");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:siprotec_5_cp300_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) 2022-2023 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:siprotec_5_cp300_firmware" :
        {"versionEndExcluding" : "8.01", "family" : "Siprotec5"}
};

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