Cisco NX-OS Software Role-Based Access Arbitrary Command Execution (CVE-2018-0337)

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

include('compat.inc');

if (description)
{
  script_id(501288);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/26");

  script_cve_id("CVE-2018-0337");

  script_name(english:"Cisco NX-OS Software Role-Based Access Arbitrary Command Execution (CVE-2018-0337)");

  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 role-based access-checking mechanisms of Cisco
NX-OS Software could allow an authenticated, local attacker to execute
arbitrary commands on an affected device. The vulnerability exists
because the affected software lacks proper input and validation checks
for certain file systems. An attacker could exploit this vulnerability
by issuing crafted commands in the CLI of an affected device. A
successful exploit could allow the attacker to cause other users to
execute unwanted, arbitrary commands on the affected device. Cisco Bug
IDs: CSCvd06339, CSCvd15698, CSCvd36108, CSCvf52921, CSCvf52930,
CSCvf52953, CSCvf52976.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-nxos-rbaccess
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c48019f0");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:L/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-2018-0337");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(863);

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/06/21");
  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:7.0%288%29n1%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.1%284%29n1%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.3%281%29dx%280.119%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.3%281%29n1%280.6%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.3%282%29n1%280.350%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.3%283%29d1%280.2%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8.0%280.54%29s0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8.1%280%29bd%280.20%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8.1%280.9%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8.2%280.4%29s0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8.3%280%29spg%280.30%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:8.8%283.5%29s0");
  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:7.0%288%29n1%281%29" :
        {"versionEndIncluding" : "7.0%288%29n1%281%29", "versionStartIncluding" : "7.0%288%29n1%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.1%284%29n1%281%29" :
        {"versionEndIncluding" : "7.1%284%29n1%281%29", "versionStartIncluding" : "7.1%284%29n1%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.3%281%29n1%280.6%29" :
        {"versionEndIncluding" : "7.3%281%29n1%280.6%29", "versionStartIncluding" : "7.3%281%29n1%280.6%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.3%282%29n1%280.350%29" :
        {"versionEndIncluding" : "7.3%282%29n1%280.350%29", "versionStartIncluding" : "7.3%282%29n1%280.350%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.3%281%29dx%280.119%29" :
        {"versionEndIncluding" : "7.3%281%29dx%280.119%29", "versionStartIncluding" : "7.3%281%29dx%280.119%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.3%283%29d1%280.2%29" :
        {"versionEndIncluding" : "7.3%283%29d1%280.2%29", "versionStartIncluding" : "7.3%283%29d1%280.2%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.0%280.54%29s0" :
        {"versionEndIncluding" : "8.0%280.54%29s0", "versionStartIncluding" : "8.0%280.54%29s0", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.1%280%29bd%280.20%29" :
        {"versionEndIncluding" : "8.1%280%29bd%280.20%29", "versionStartIncluding" : "8.1%280%29bd%280.20%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.1%280.9%29" :
        {"versionEndIncluding" : "8.1%280.9%29", "versionStartIncluding" : "8.1%280.9%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.2%280.4%29s0" :
        {"versionEndIncluding" : "8.2%280.4%29s0", "versionStartIncluding" : "8.2%280.4%29s0", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.3%280%29spg%280.30%29" :
        {"versionEndIncluding" : "8.3%280%29spg%280.30%29", "versionStartIncluding" : "8.3%280%29spg%280.30%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:8.8%283.5%29s0" :
        {"versionEndIncluding" : "8.8%283.5%29s0", "versionStartIncluding" : "8.8%283.5%29s0", "family" : "NXOS"}
};

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