Cisco NX-OS Software Cisco Fabric Services Denial of Service (CVE-2019-1616)

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

include('compat.inc');

if (description)
{
  script_id(501290);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/26");

  script_cve_id("CVE-2019-1616");

  script_name(english:"Cisco NX-OS Software Cisco Fabric Services Denial of Service (CVE-2019-1616)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A vulnerability in the Cisco Fabric Services component of Cisco NX-OS
Software could allow an unauthenticated, remote attacker to cause a
buffer overflow, resulting in a denial of service (DoS) condition. The
vulnerability is due to insufficient validation of Cisco Fabric
Services packets. An attacker could exploit this vulnerability by
sending a crafted Cisco Fabric Services packet to an affected device.
A successful exploit could allow the attacker to cause a buffer
overflow, resulting in process crashes and a DoS condition on the
device. MDS 9000 Series Multilayer Switches are affected running
software versions prior to 6.2(25), 8.1(1b), 8.3(1). Nexus 3000 Series
Switches are affected running software versions prior to 7.0(3)I4(9)
and 7.0(3)I7(4). Nexus 3500 Platform Switches are affected running
software versions prior to 6.0(2)A8(10) and 7.0(3)I7(4). Nexus 3600
Platform Switches are affected running software versions prior to
7.0(3)F3(5) Nexus 7000 and 7700 Series Switches are affected running
software versions prior to 6.2(22) and 8.2(3). Nexus 9000 Series
Switches in Standalone NX-OS Mode are affected running software
versions prior to 7.0(3)I4(9) and 7.0(3)I7(4). Nexus 9500 R-Series
Line Cards and Fabric Modules are affected running software versions
prior to 7.0(3)F3(5). UCS 6200, 6300, and 6400 Fabric Interconnects
are affected running software versions prior to 3.2(3j) and 4.0(2a).

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://www.securityfocus.com/bid/107395");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-fabric-dos
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c2417bde");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  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:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-1616");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(119);

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/03/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/07/25");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8");
  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/Cisco");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Cisco');

var asset = tenable_ot::assets::get(vendor:'Cisco');

var vuln_cpes = {
    "cpe:/o:cisco:nx-os:8.3%281%29" :
        {"versionEndExcluding" : "8.3%281%29", "versionStartIncluding" : "8.2", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0%283%29i7%284%29" :
        {"versionEndExcluding" : "7.0%283%29i7%284%29", "versionStartIncluding" : "7.0%283%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0%283%29f3%283c%29" :
        {"versionEndExcluding" : "7.0%283%29f3%283c%29", "versionStartIncluding" : "7.0%283%29f1", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.2%283%29" :
        {"versionEndExcluding" : "8.2%283%29", "versionStartIncluding" : "7.2", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.1%281b%29" :
        {"versionEndExcluding" : "8.1%281b%29", "versionStartIncluding" : "7.3", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:6.2%2825%29" :
        {"versionEndExcluding" : "6.2%2825%29", "versionStartIncluding" : "5.2", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0%283%29i4%289%29" :
        {"versionEndExcluding" : "7.0%283%29i4%289%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:6.2%2822%29" :
        {"versionEndExcluding" : "6.2%2822%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:6.0%282%29a8%2810%29" :
        {"versionEndExcluding" : "6.0%282%29a8%2810%29", "versionStartIncluding" : "6.0%282%29a8", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:6.0%282%29a8" :
        {"versionEndIncluding" : "6.0%282%29a8", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0%283%29i4" :
        {"versionEndIncluding" : "7.0%283%29i4", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:4.0%282a%29" :
        {"versionEndExcluding" : "4.0%282a%29", "versionStartIncluding" : "4.0", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:3.2%283j%29" :
        {"versionEndExcluding" : "3.2%283j%29", "family" : "NXOS"}
};

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