CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS
Percentile
43.8%
According to its self-reported version, Cisco ASA Software is affected by a denial of service (DoS) vulnerability in the Simple Network Management Protocol (SNMP) feature of Cisco Adaptive Security Appliance (ASA) Software. Due to insufficient input validation, an authenticated, remote attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Please see the included Cisco BIDs and Cisco Security Advisory for more information.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(178026);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/11");
script_cve_id("CVE-2022-20924");
script_xref(name:"IAVA", value:"2022-A-0487-S");
script_xref(name:"CISCO-BUG-ID", value:"CSCwb05148");
script_xref(name:"CISCO-SA", value:"cisco-sa-asaftd-snmp-dos-qsqBNM6x");
script_name(english:"Cisco Adaptive Security Appliance Software SNMP DoS (cisco-sa-asaftd-snmp-dos-qsqBNM6x)");
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 ASA Software is affected by a denial of service (DoS) vulnerability in
the Simple Network Management Protocol (SNMP) feature of Cisco Adaptive Security Appliance (ASA) Software. Due to
insufficient input validation, an authenticated, remote attacker could exploit this vulnerability by sending a crafted
SNMP request to an affected device. A successful exploit could allow the attacker to cause the affected device to
reload, resulting in 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-asaftd-snmp-dos-qsqBNM6x
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2665459d");
script_set_attribute(attribute:"see_also", value:"https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74838");
script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwb05148");
script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCwb05148");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
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:N/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-2022-20924");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_cwe_id(284);
script_set_attribute(attribute:"vuln_publication_date", value:"2022/11/09");
script_set_attribute(attribute:"patch_publication_date", value:"2022/11/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/07/07");
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:adaptive_security_appliance_software");
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) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/Cisco/ASA");
exit(0);
}
include('ccf.inc');
include('cisco_workarounds.inc');
var product_info = cisco::get_product_info(name:'Cisco Adaptive Security Appliance (ASA) Software');
var model = product_info['model'];
var vuln_versions = NULL;
// Cisco Firepower 1000, 2100, 4100, 9000 Series
if (model =~ "(FPR-?|Firepower)\s*(1[0-9]{3}|1K|21[0-9]{2}|2K|41[0-9]{2}|4K|9[0-9]{3}|9K)")
{
vuln_versions = make_list(
'9.14.1',
'9.14.1.10',
'9.14.1.15',
'9.14.1.19',
'9.14.1.30',
'9.14.2',
'9.14.2.4',
'9.14.2.8',
'9.14.2.13',
'9.14.2.15',
'9.14.3',
'9.14.3.1',
'9.14.3.9',
'9.14.3.11',
'9.14.3.13',
'9.14.3.18',
'9.14.3.15',
'9.14.4',
'9.14.4.6',
'9.14.4.7',
'9.14.4.12',
'9.15.1',
'9.15.1.7',
'9.15.1.10',
'9.15.1.15',
'9.15.1.16',
'9.15.1.17',
'9.15.1.1',
'9.15.1.21',
'9.16.1',
'9.16.1.28',
'9.16.2',
'9.16.2.3',
'9.16.2.7',
'9.16.2.11',
'9.16.2.13',
'9.16.2.14',
'9.16.3',
'9.16.3.3',
'9.16.3.14',
'9.17.1',
'9.17.1.7',
'9.17.1.9',
'9.17.1.10',
'9.17.1.11',
'9.17.1.13',
'9.17.1.15',
'9.18.1'
);
}
// Cisco ASA 5500-X Series Firewalls
else if (model =~ "ASA55[0-9]{2}-X")
{
vuln_versions = make_list(
'9.14.1',
'9.14.1.10',
'9.14.1.15',
'9.14.1.19',
'9.14.1.30',
'9.14.2',
'9.14.2.4',
'9.14.2.8',
'9.14.2.13',
'9.14.2.15',
'9.14.3',
'9.14.3.1',
'9.14.3.9',
'9.14.3.11',
'9.14.3.13',
'9.14.3.18',
'9.14.3.15',
'9.14.4',
'9.14.4.6',
'9.14.4.7',
'9.14.4.12',
'9.15.1',
'9.15.1.7',
'9.15.1.10',
'9.15.1.15',
'9.15.1.16',
'9.15.1.17',
'9.15.1.1',
'9.15.1.21',
'9.16.1',
'9.16.1.28',
'9.16.2',
'9.16.2.3',
'9.16.2.7',
'9.16.2.11',
'9.16.2.13',
'9.16.2.14',
'9.16.3',
'9.16.3.3',
'9.16.3.14'
);
}
// Cisco 3000 Series Industrial Security Appliances (ISA)
else if (model =~ "ISA3[0-9]{3}")
{
vuln_versions = make_list(
'9.14.1',
'9.14.1.10',
'9.14.1.15',
'9.14.1.19',
'9.14.1.30',
'9.14.2',
'9.14.2.4',
'9.14.2.8',
'9.14.2.13',
'9.14.2.15',
'9.14.3',
'9.14.3.1',
'9.14.3.9',
'9.14.3.11',
'9.14.3.13',
'9.14.3.18',
'9.14.3.15',
'9.14.4',
'9.14.4.6',
'9.14.4.7',
'9.14.4.12',
'9.15.1',
'9.15.1.7',
'9.15.1.10',
'9.15.1.15',
'9.15.1.16',
'9.15.1.17',
'9.15.1.1',
'9.15.1.21',
'9.16.1',
'9.16.1.28',
'9.16.2',
'9.16.2.3',
'9.16.2.7',
'9.16.2.11',
'9.16.2.13',
'9.16.2.14',
'9.16.3',
'9.16.3.3',
'9.16.3.14',
'9.17.1',
'9.17.1.7',
'9.17.1.9',
'9.17.1.10',
'9.17.1.11',
'9.17.1.13',
'9.17.1.15',
'9.18.1'
);
}
// Cisco Adaptive Security Virtual Appliance (ASAv)
else if (toupper(model) >< 'ASAV')
{
vuln_versions = make_list(
'9.14.1',
'9.14.1.10',
'9.14.1.6',
'9.14.1.15',
'9.14.1.19',
'9.14.1.30',
'9.14.2',
'9.14.2.4',
'9.14.2.8',
'9.14.2.13',
'9.14.2.15',
'9.14.3',
'9.14.3.1',
'9.14.3.9',
'9.14.3.11',
'9.14.3.13',
'9.14.3.18',
'9.14.3.15',
'9.14.4',
'9.14.4.6',
'9.14.4.7',
'9.14.4.12',
'9.15.1',
'9.15.1.7',
'9.15.1.10',
'9.15.1.15',
'9.15.1.16',
'9.15.1.17',
'9.15.1.1',
'9.15.1.21',
'9.16.1',
'9.16.1.28',
'9.16.2',
'9.16.2.3',
'9.16.2.7',
'9.16.2.11',
'9.16.2.13',
'9.16.2.14',
'9.16.3',
'9.16.3.3',
'9.16.3.14',
'9.17.1',
'9.17.1.7',
'9.17.1.9',
'9.17.1.10',
'9.17.1.11',
'9.17.1.13',
'9.17.1.15',
'9.18.1'
);
}
// Cisco Secure Firewall 3100 Series
else if (report_paranoia >= 2)
{
vuln_versions = make_list(
'9.17.1',
'9.17.1.9',
'9.17.1.10',
'9.17.1.11',
'9.17.1.13',
'9.17.1.15',
'9.18.1'
);
}
else audit(AUDIT_HOST_NOT, 'an affected model');
var workarounds = make_list(CISCO_WORKAROUNDS['generic_workaround']);
var workaround_params = WORKAROUND_CONFIG['snmp-server'];
var reporting = make_array(
'port' , 0,
'severity' , SECURITY_WARNING,
'version' , product_info['version'],
'bug_id' , 'CSCwb05148',
'cmds' , make_list('show running-config'),
'fix' , 'See vendor advisory'
);
cisco::check_and_report(
product_info:product_info,
workarounds:workarounds,
workaround_params:workaround_params,
reporting:reporting,
vuln_versions:vuln_versions
);