CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
Percentile
29.2%
According to its self-reported version, Cisco Firepower Management Center is affected by a cross-site scripting (XSS) vulnerability. The vulnerability exists in the web-based management interface of FMC software due to improper validation of user-supplied input before returning it to users. An unauthenticated, remote attacker can exploit this, by convincing a user to click a specially crafted URL, to execute arbitrary script code in a user’s browser session.
##
# (C) Tenable Network Security, Inc.
##
include('compat.inc');
if (description)
{
script_id(141358);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/01/26");
script_cve_id("CVE-2020-3320");
script_xref(name:"CISCO-BUG-ID", value:"CSCvs72390");
script_xref(name:"CISCO-SA", value:"cisco-sa-fmc-xss-yLrjqqU");
script_xref(name:"IAVA", value:"2020-A-0448-S");
script_name(english:"Cisco Firepower Management Center XSS (cisco-sa-fmc-xss-yLrjqqU)");
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 Firepower Management Center is affected by a cross-site scripting (XSS)
vulnerability. The vulnerability exists in the web-based management interface of FMC software due to improper validation
of user-supplied input before returning it to users. An unauthenticated, remote attacker can exploit this, by convincing
a user to click a specially crafted URL, to execute arbitrary script code in a user's browser session.");
# https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-yLrjqqU
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9ddfdcd8");
script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvs72390");
script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvs72390");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:R/S:C/C:L/I:L/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-2020-3320");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/10/07");
script_set_attribute(attribute:"patch_publication_date", value:"2020/10/07");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/09");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:firepower_management_center");
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) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("cisco_firepower_version.nasl");
script_require_keys("Host/Cisco/firepower_mc/version");
exit(0);
}
include('vcf.inc');
app = 'Cisco Firepower Management Center';
app_info = vcf::get_app_info(app:app, kb_ver:'Host/Cisco/firepower_mc/version');
vcf::check_granularity(app_info:app_info, sig_segments:3);
constraints = [
{ 'max_version' : '6.6.1', 'fixed_display' : 'See vendor advisory' }
];
vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_NOTE, flags:{'xss': TRUE});
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
Percentile
29.2%