Cisco Nexus Series Switches CLI Command Injection (CVE-2017-6649)

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

include('compat.inc');

if (description)
{
  script_id(501236);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/26");

  script_cve_id("CVE-2017-6649");

  script_name(english:"Cisco Nexus Series Switches CLI Command Injection (CVE-2017-6649)");

  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 CLI of Cisco NX-OS System Software 7.1 through
7.3 running on Cisco Nexus Series Switches could allow an
authenticated, local attacker to perform a command injection attack.
The vulnerability is due to insufficient input validation of command
arguments. An attacker could exploit this vulnerability by injecting
crafted command arguments into a vulnerable CLI command. An exploit
could allow the attacker to read or write arbitrary files at the
user's privilege level outside of the user's path. Cisco Bug IDs:
CSCvb86787, CSCve60516, CSCve60555.

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/98531");
  script_set_attribute(attribute:"see_also", value:"http://www.securitytracker.com/id/1038518");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-nss
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8f41511f");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/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: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-2017-6649");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(20, 77);

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/05/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/05/22");
  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%281%29n1%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.1%282%29n1%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.1%283%29n1%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.1%283%29n1%282%29");
  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:7.1%284%29n1%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.2%280%29d1%280.437%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.2%280%29n1%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.2%280%29zz%2899.1%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.2%281%29n1%281%29");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:nx-os:7.3%280%29n1%281%29");
  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%281%29n1%281%29" :
        {"versionEndIncluding" : "7.1%281%29n1%281%29", "versionStartIncluding" : "7.1%281%29n1%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.1%282%29n1%281%29" :
        {"versionEndIncluding" : "7.1%282%29n1%281%29", "versionStartIncluding" : "7.1%282%29n1%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.1%283%29n1%281%29" :
        {"versionEndIncluding" : "7.1%283%29n1%281%29", "versionStartIncluding" : "7.1%283%29n1%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.1%283%29n1%282%29" :
        {"versionEndIncluding" : "7.1%283%29n1%282%29", "versionStartIncluding" : "7.1%283%29n1%282%29", "family" : "NXOS"},
    "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:7.1%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:7.2%280%29d1%280.437%29" :
        {"versionEndIncluding" : "7.2%280%29d1%280.437%29", "versionStartIncluding" : "7.2%280%29d1%280.437%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.2%280%29n1%281%29" :
        {"versionEndIncluding" : "7.2%280%29n1%281%29", "versionStartIncluding" : "7.2%280%29n1%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.2%280%29zz%2899.1%29" :
        {"versionEndIncluding" : "7.2%280%29zz%2899.1%29", "versionStartIncluding" : "7.2%280%29zz%2899.1%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.2%281%29n1%281%29" :
        {"versionEndIncluding" : "7.2%281%29n1%281%29", "versionStartIncluding" : "7.2%281%29n1%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.3%280%29n1%281%29" :
        {"versionEndIncluding" : "7.3%280%29n1%281%29", "versionStartIncluding" : "7.3%280%29n1%281%29", "family" : "NXOS"}
};

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