Cisco FXOS and NX-OS Software Sensitive File Read Information Disclosure (CVE-2019-1734)

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

include('compat.inc');

if (description)
{
  script_id(501301);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/26");

  script_cve_id("CVE-2019-1734");

  script_name(english:"Cisco FXOS and NX-OS Software Sensitive File Read Information Disclosure (CVE-2019-1734)");

  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 implementation of a CLI diagnostic command in
Cisco FXOS Software and Cisco NX-OS Software could allow an
authenticated, local attacker to view sensitive system files that
should be restricted. The attacker could use this information to
conduct additional reconnaissance attacks. The vulnerability is due to
incomplete role-based access control (RBAC) verification. An attacker
could exploit this vulnerability by authenticating to the device and
issuing a specific CLI diagnostic command with crafted user-input
parameters. An exploit could allow the attacker to perform an
arbitrary read of a file on the device, and the file may contain
sensitive information. The attacker needs valid device credentials to
exploit this vulnerability.

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-20190515-nxos-fxos-info
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?92f90474");
  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:N/A:N");
  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:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-1734");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/11/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/11/05");
  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: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:"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:6.2%287%29" :
        {"versionEndExcluding" : "6.2%287%29", "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:7.0%283%29i7%286%29" :
        {"versionEndExcluding" : "7.0%283%29i7%286%29", "versionStartIncluding" : "7.0%283%29i7", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:6.0%282%29a4%281%29" :
        {"versionEndExcluding" : "6.0%282%29a4%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.0%283%29f3%285%29" :
        {"versionEndExcluding" : "7.0%283%29f3%285%29", "versionStartIncluding" : "7.0%283%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.1%284%29n1%281%29" :
        {"versionEndExcluding" : "7.1%284%29n1%281%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:7.3%280%29n1%281%29" :
        {"versionEndExcluding" : "7.3%280%29n1%281%29", "versionStartIncluding" : "7.2", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:6.2%286%29" :
        {"versionEndExcluding" : "6.2%286%29", "family" : "NXOS"},
    "cpe:/o:cisco:nx-os:4.0%281a%29" :
        {"versionEndExcluding" : "4.0%281a%29", "family" : "NXOS"}
};

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