CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
Percentile
51.4%
According to its self-reported version, Cisco Firepower Management Center is affected by a denial of service (DoS) vulnerability in its host input API daemon component due to improper certificate validation. An unauthenticated, local attacker can exploit this issue, by sending a crafted data stream to the host input daemon of an affected device, to impose a DoS condition.
Please see the included Cisco BIDs and Cisco Security Advisory for more information.
##
# (C) Tenable Network Security, Inc.
##
include('compat.inc');
if (description)
{
script_id(142213);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/03/31");
script_cve_id("CVE-2020-3557");
script_xref(name:"CISCO-BUG-ID", value:"CSCvt54267");
script_xref(name:"CISCO-SA", value:"cisco-sa-fmc-dos-3WymYWKh");
script_xref(name:"IAVA", value:"2020-A-0488-S");
script_name(english:"Cisco Firepower Management Center DoS (cisco-sa-fmc-dos-3WymYWKh)");
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 denial of service (DoS)
vulnerability in its host input API daemon component due to improper certificate validation. An unauthenticated, local
attacker can exploit this issue, by sending a crafted data stream to the host input daemon of an affected device, to
impose a DoS condition.
Please see the included Cisco BIDs and Cisco Security Advisory for more information.");
# https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-dos-3WymYWKh
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2c34b508");
script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvt54267");
script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvt54267");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
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:N/UI:N/S:U/C:N/I:N/A:L");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-3557");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_cwe_id(295);
script_set_attribute(attribute:"vuln_publication_date", value:"2020/10/21");
script_set_attribute(attribute:"patch_publication_date", value:"2020/10/21");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/02");
script_set_attribute(attribute:"potential_vulnerability", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a: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) 2020-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("cisco_firepower_version.nasl");
script_require_keys("Host/Cisco/firepower_mc/version", "Settings/ParanoidReport");
exit(0);
}
include('vcf.inc');
app_info = vcf::get_app_info(
app:'Cisco Firepower Management Center',
kb_ver:'Host/Cisco/firepower_mc/version'
);
# Only vuln if device configured to use host input client feature.
if (report_paranoia < 2)
audit(AUDIT_PARANOID);
vcf::check_granularity(app_info:app_info, sig_segments:3);
constraints = [{'fixed_version':'6.6.1'}];
vcf::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_WARNING
);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
Percentile
51.4%