Cisco Nexus 5000, 6000, and 7000 Series Switches Software IS-IS Packet Processing Denial of Service (CVE-2017-3804)

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

include('compat.inc');

if (description)
{
  script_id(501273);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/26");

  script_cve_id("CVE-2017-3804");

  script_name(english:"Cisco Nexus 5000, 6000, and 7000 Series Switches Software IS-IS Packet Processing Denial of Service (CVE-2017-3804)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A vulnerability in Intermediate System-to-Intermediate System (IS-IS)
protocol packet processing of Cisco Nexus 5000, 6000, and 7000 Series
Switches software could allow an unauthenticated, adjacent attacker to
cause a reload of the affected device. Switches in the FabricPath
domain crash because of an __inst_001__isis_fabricpath hap reset when
processing a crafted link-state packet. More Information: CSCvc45002.
Known Affected Releases: 7.1(3)N1(2.1) 7.1(3)N1(3.12) 7.3(2)N1(0.296)
8.0(1)S2. Known Fixed Releases: 6.2(18)S11 7.0(3)I5(1.170) 7.0(3)I5(2)
7.1(4)N1(0.4) 7.1(4)N1(1b) 7.1(5)N1(0.986) 7.1(5)N1(1) 7.2(3)D1(0.8)
7.3(2)N1(0.304) 7.3(2)N1(1) 8.0(0.96)S0 8.0(1) 8.0(1)E1 8.0(1)S4
8.3(0)CV(0.788).

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/95638");
  script_set_attribute(attribute:"see_also", value:"http://www.securitytracker.com/id/1037658");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170118-nexus
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?63c3627f");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/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-2017-3804");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/01/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/26");
  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:7.1%283%29n1%282.1%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.1%283%29n1%283.12%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.3%282%29n1%280.296%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8.0%281%29s2");
  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:7.1%283%29n1%282.1%29" :
        {"versionEndIncluding" : "7.1%283%29n1%282.1%29", "versionStartIncluding" : "7.1%283%29n1%282.1%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.1%283%29n1%283.12%29" :
        {"versionEndIncluding" : "7.1%283%29n1%283.12%29", "versionStartIncluding" : "7.1%283%29n1%283.12%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.3%282%29n1%280.296%29" :
        {"versionEndIncluding" : "7.3%282%29n1%280.296%29", "versionStartIncluding" : "7.3%282%29n1%280.296%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.0%281%29s2" :
        {"versionEndIncluding" : "8.0%281%29s2", "versionStartIncluding" : "8.0%281%29s2", "family" : "NXOS"}
};

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