CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
5.1%
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.
#%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);
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
5.1%