Cisco NX-OS Software NX-API Arbitrary Code Execution (CVE-2018-0301)

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

include('compat.inc');

if (description)
{
  script_id(501345);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/26");

  script_cve_id("CVE-2018-0301");

  script_name(english:"Cisco NX-OS Software NX-API Arbitrary Code Execution (CVE-2018-0301)");

  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 NX-API feature of Cisco NX-OS Software could
allow an unauthenticated, remote attacker to craft a packet to the
management interface on an affected system, causing a buffer overflow.
The vulnerability is due to incorrect input validation in the
authentication module of the NX-API subsystem. An attacker could
exploit this vulnerability by sending a crafted HTTP or HTTPS packet
to the management interface of an affected system with the NX-API
feature enabled. An exploit could allow the attacker to execute
arbitrary code as root. Note: NX-API is disabled by default. This
vulnerability affects: MDS 9000 Series Multilayer Switches, Nexus 2000
Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500
Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform
Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches,
Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone
NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules. Cisco
Bug IDs: CSCvd45804, CSCve02322, CSCve02412.

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/104512");
  script_set_attribute(attribute:"see_also", value:"http://www.securitytracker.com/id/1041169");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-nxos-bo
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c4542be2");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/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:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-0301");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(119);

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/06/20");
  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:5.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:6.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:6.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.0%283%29i7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8.2");
  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:7.3%283%29n1%281%29" :
        {"versionEndExcluding" : "7.3%283%29n1%281%29", "versionStartIncluding" : "6.0", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.3%282%29d1%281%29" :
        {"versionEndExcluding" : "7.3%282%29d1%281%29", "versionStartIncluding" : "7.2", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.1%281%29" :
        {"versionEndExcluding" : "8.1%281%29", "versionStartIncluding" : "7.3", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.1" :
        {"versionEndIncluding" : "8.1", "versionStartIncluding" : "8.1", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.2" :
        {"versionEndIncluding" : "8.2", "versionStartIncluding" : "8.2", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0%283%29i4" :
        {"versionEndExcluding" : "7.0%283%29i4", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0%283%29i7%281%29" :
        {"versionEndExcluding" : "7.0%283%29i7%281%29", "versionStartIncluding" : "7.0%283%29i5", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0%283%29i7" :
        {"versionEndIncluding" : "7.0%283%29i7", "versionStartIncluding" : "7.0%283%29i7", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0%283%29i4" :
        {"versionEndExcluding" : "7.0%283%29i4", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0%283%29i7%281%29" :
        {"versionEndExcluding" : "7.0%283%29i7%281%29", "versionStartIncluding" : "7.0%283%29i5", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:6.0" :
        {"versionEndIncluding" : "6.0", "versionStartIncluding" : "6.0", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0" :
        {"versionEndIncluding" : "7.0", "versionStartIncluding" : "7.0", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.1" :
        {"versionEndIncluding" : "7.1", "versionStartIncluding" : "7.1", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.2" :
        {"versionEndIncluding" : "7.2", "versionStartIncluding" : "7.2", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.3%283%29n1%281%29" :
        {"versionEndExcluding" : "7.3%283%29n1%281%29", "versionStartIncluding" : "7.3", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:5.2" :
        {"versionEndIncluding" : "5.2", "versionStartIncluding" : "5.2", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:6.2" :
        {"versionEndIncluding" : "6.2", "versionStartIncluding" : "6.2", "family" : "NXOS"}
};

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