CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:S/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS
Percentile
40.1%
According to its self-reported version, Cisco SD-WAN vManage is affected by an arbitrary file creation vulnerability due to improper validation of requests to APIs. An authenticated, remote attacker can exploit this, by sending malicious requests to an API in the affected system, to conduct directory traversal attacks and write files to an arbitrary location on the affected system.
Please see the included Cisco BID and Cisco Security Advisory for more information.
#TRUSTED 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
##
# (C) Tenable Network Security, Inc.
##
include('compat.inc');
if (description)
{
script_id(145552);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/02/02");
script_cve_id("CVE-2020-27128");
script_xref(name:"CISCO-BUG-ID", value:"CSCvv21749");
script_xref(name:"CISCO-SA", value:"cisco-sa-vmanage-file-Y2JSRNRb");
script_xref(name:"IAVA", value:"2020-A-0509");
script_name(english:"Cisco SD-WAN vManage Software Arbitrary File Creation (cisco-sa-vmanage-file-Y2JSRNRb)");
script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
script_set_attribute(attribute:"description", value:
"According to its self-reported version, Cisco SD-WAN vManage is affected by an arbitrary file creation vulnerability
due to improper validation of requests to APIs. An authenticated, remote attacker can exploit this, by sending malicious
requests to an API in the affected system, to conduct directory traversal attacks and write files to an arbitrary
location on the affected system.
Please see the included Cisco BID and Cisco Security Advisory for more information.");
# https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-file-Y2JSRNRb
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ae014018");
script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvv21749");
script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvv21749.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N");
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:L/UI:N/S:U/C:N/I:H/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-2020-27128");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_cwe_id(22);
script_set_attribute(attribute:"vuln_publication_date", value:"2020/11/04");
script_set_attribute(attribute:"patch_publication_date", value:"2020/11/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/01/29");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:sd-wan_firmware");
script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:sd-wan_vmanage");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CISCO");
script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("cisco_vedge_detect.nbin");
script_require_keys("Cisco/Viptela/Version");
exit(0);
}
include('ccf.inc');
product_info = cisco::get_product_info(name:'Cisco Viptela');
if ('vmanage' >!< tolower(product_info['model']))
audit(AUDIT_HOST_NOT, 'an affected model');
vuln_ranges = [
{ 'min_ver':'0', 'fix_ver':'20.3.1' }
];
reporting = make_array(
'port' , 0,
'severity' , SECURITY_WARNING,
'version' , product_info['version'],
'bug_id' , 'CSCvv21749',
'disable_caveat', TRUE
);
cisco::check_and_report(
product_info:product_info,
reporting:reporting,
vuln_ranges:vuln_ranges
);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:S/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS
Percentile
40.1%