Vulnerabilities > CVE-2018-0231 - Out-of-bounds Write vulnerability in Cisco products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
A vulnerability in the Transport Layer Security (TLS) library of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a reload of the affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a malicious TLS message to an interface enabled for Secure Layer Socket (SSL) services on an affected device. Messages using SSL Version 3 (SSLv3) or SSL Version 2 (SSLv2) cannot be be used to exploit this vulnerability. An exploit could allow the attacker to cause a buffer underflow, triggering a crash on an affected device. This vulnerability affects Cisco ASA Software and Cisco FTD Software that is running on the following Cisco products: Adaptive Security Virtual Appliance (ASAv), Firepower Threat Defense Virtual (FTDv), Firepower 2100 Series Security Appliance. Cisco Bug IDs: CSCve18902, CSCve34335, CSCve38446.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family CISCO NASL id CISCO-SA-20180418-ASA1.NASL description According to its self-reported version the Cisco Adaptive Security Appliance (ASA) software running on the remote device is affected by multiple vulnerabilities. Please see the included Cisco BIDs and Cisco Security Advisories for more information. last seen 2020-06-01 modified 2020-06-02 plugin id 109404 published 2018-04-27 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109404 title Cisco ASA Multiple Vulnerabilities (cisco-sa-20180418-asa1 / cisco-sa-20180418-asa2 / cisco-sa-20180418-asa3 / cisco-sa-20180418-asaanyconnect / cisco-sa-20180418-asa_inspect) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(109404); script_version("1.7"); script_cvs_date("Date: 2020/01/17"); script_cve_id( "CVE-2018-0227", "CVE-2018-0228", "CVE-2018-0229", "CVE-2018-0231", "CVE-2018-0240" ); script_bugtraq_id(103934, 103939); script_xref(name:"CISCO-BUG-ID", value:"CSCvg40155"); script_xref(name:"CISCO-BUG-ID", value:"CSCvf63718"); script_xref(name:"CISCO-BUG-ID", value:"CSCve18902"); script_xref(name:"CISCO-BUG-ID", value:"CSCve34335"); script_xref(name:"CISCO-BUG-ID", value:"CSCve38446"); script_xref(name:"CISCO-BUG-ID", value:"CSCvg65072"); script_xref(name:"CISCO-BUG-ID", value:"CSCvh87448"); script_xref(name:"CISCO-BUG-ID", value:"CSCve61540"); script_xref(name:"CISCO-BUG-ID", value:"CSCvh23085"); script_xref(name:"CISCO-BUG-ID", value:"CSCvh95456"); script_xref(name:"CISCO-SA", value:"cisco-sa-20180418-asa1"); script_xref(name:"CISCO-SA", value:"cisco-sa-20180418-asa2"); script_xref(name:"CISCO-SA", value:"cisco-sa-20180418-asa3"); script_xref(name:"CISCO-SA", value:"cisco-sa-20180418-asaanyconnect"); script_xref(name:"CISCO-SA", value:"cisco-sa-20180418-asa_inspect"); script_name(english:"Cisco ASA Multiple Vulnerabilities (cisco-sa-20180418-asa1 / cisco-sa-20180418-asa2 / cisco-sa-20180418-asa3 / cisco-sa-20180418-asaanyconnect / cisco-sa-20180418-asa_inspect)"); script_summary(english:"Checks the ASA version."); 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 the Cisco Adaptive Security Appliance (ASA) software running on the remote device is affected by multiple vulnerabilities. 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script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"CISCO"); script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl", "os_fingerprint.nasl"); script_require_keys("Host/Cisco/ASA", "Host/Cisco/ASA/model", "Settings/ParanoidReport"); exit(0); } include("audit.inc"); include("cisco_func.inc"); include("cisco_kb_cmd_func.inc"); if (report_paranoia < 2) audit(AUDIT_PARANOID); asa = get_kb_item_or_exit('Host/Cisco/ASA'); model = get_kb_item_or_exit('Host/Cisco/ASA/model'); version = extract_asa_version(asa); if (isnull(version)) audit(AUDIT_FN_FAIL, 'extract_asa_version'); if ( model !~ '^55[0-9][0-9]($|[^0-9])' && # 5500 & 5500-X model !~ '^65[0-9][0-9]($|[^0-9])' && # 6500 model !~ '^76[0-9][0-9]($|[^0-9])' && # 7600 model !~ '^93[0-9][0-9]($|[^0-9])' && # Firepower 9300 ASA model !~ '^21[0-9][0-9]($|[^0-9])' && # Firepower 2100 SSA model !~ '^411[0-9]($|[^0-9])' && # Firepower 4110 SA model !~ '^30[0-9][0-9]($|[^0-9])' && # ISA 3000 model != 'v' # ASAv ) audit(AUDIT_HOST_NOT, "an affected Cisco ASA product"); 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Please see the included Cisco BIDs and Cisco Security Advisories for more information. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 133044 published 2020-01-17 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133044 title Cisco FTD Multiple Vulnerabilities (cisco-sa-20180418-asa1 / cisco-sa-20180418-asa2 / cisco-sa-20180418-asa3 / cisco-sa-20180418-asaanyconnect / cisco-sa-20180418-asa_inspect) code #TRUSTED 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 # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(133044); script_version("1.2"); script_cvs_date("Date: 2020/01/17"); script_cve_id( "CVE-2018-0227", "CVE-2018-0228", "CVE-2018-0229", "CVE-2018-0231", "CVE-2018-0240" ); script_bugtraq_id(103934, 103939); script_xref(name:"CISCO-BUG-ID", value:"CSCvg40155"); script_xref(name:"CISCO-BUG-ID", value:"CSCvf63718"); script_xref(name:"CISCO-BUG-ID", value:"CSCve18902"); script_xref(name:"CISCO-BUG-ID", value:"CSCve34335"); script_xref(name:"CISCO-BUG-ID", value:"CSCve38446"); script_xref(name:"CISCO-BUG-ID", value:"CSCvg65072"); script_xref(name:"CISCO-BUG-ID", value:"CSCvh87448"); script_xref(name:"CISCO-BUG-ID", value:"CSCve61540"); script_xref(name:"CISCO-BUG-ID", value:"CSCvh23085"); script_xref(name:"CISCO-BUG-ID", value:"CSCvh95456"); script_xref(name:"CISCO-SA", value:"cisco-sa-20180418-asa1"); script_xref(name:"CISCO-SA", value:"cisco-sa-20180418-asa2"); script_xref(name:"CISCO-SA", value:"cisco-sa-20180418-asa3"); script_xref(name:"CISCO-SA", value:"cisco-sa-20180418-asaanyconnect"); script_xref(name:"CISCO-SA", value:"cisco-sa-20180418-asa_inspect"); script_name(english:"Cisco FTD Multiple Vulnerabilities (cisco-sa-20180418-asa1 / cisco-sa-20180418-asa2 / cisco-sa-20180418-asa3 / cisco-sa-20180418-asaanyconnect / cisco-sa-20180418-asa_inspect)"); 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 the Cisco Firepower Threat Defense (FTD) software running on the remote device is affected by multiple vulnerabilities. Please see the included Cisco BIDs and Cisco Security Advisories for more information. 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script_set_attribute(attribute:"potential_vulnerability", value:"true"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"CISCO"); script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl", "os_fingerprint.nasl", "cisco_asa_firepower_version.nasl", "cisco_enumerate_firepower.nbin"); script_require_keys("installed_sw/Cisco Firepower Threat Defense", "Settings/ParanoidReport"); exit(0); } include('vcf.inc'); include('audit.inc'); include('cisco_workarounds.inc'); include('ccf.inc'); if (report_paranoia < 2) audit(AUDIT_PARANOID); app = 'Cisco Firepower Threat Defense'; # Based on the advisory, it seems we're looking only for FTD and not FXOS app_info = vcf::get_app_info(app:app); product_info = make_array('model' , app_info['Model'], 'version' , app_info['version'], 'name', app); model = product_info['model']; if ( model !~ '^55[0-9][0-9]($|[^0-9])' && # 5500 & 5500-X model !~ '^65[0-9][0-9]($|[^0-9])' && # 6500 model !~ '^76[0-9][0-9]($|[^0-9])' && # 7600 model !~ '^93[0-9][0-9]($|[^0-9])' && # Firepower 9300 ASA model !~ '^21[0-9][0-9]($|[^0-9])' && # Firepower 2100 SSA model !~ '^411[0-9]($|[^0-9])' && # Firepower 4110 SA model !~ '^30[0-9][0-9]($|[^0-9])' && # ISA 3000 model != 'v' # FTD v ) audit(AUDIT_HOST_NOT, 'an affected Cisco FTD product'); vuln_ranges = [ {'min_ver' : '6.0', 'fix_ver' : '6.1.0.6'}, {'min_ver' : '6.2.0', 'fix_ver' : '6.2.0.5'}, {'min_ver' : '6.2.1', 'fix_ver' : '6.2.2.2'}, {'min_ver' : '6.2.3', 'fix_ver' : '6.2.3.1'} ]; workarounds = make_list(CISCO_WORKAROUNDS['no_workaround']); workaround_params = make_list(); cbi = 'CSCvg40155, CSCvf63718, CSCve18902, CSCve34335, CSCve38446, CSCvg65072, CSCvh87448, CSCve61540, CSCvh23085, and CSCvh95456'; reporting = make_array( 'port' , 0, 'severity' , SECURITY_WARNING, 'version' , product_info['version'], 'bug_id' , cbi ); cisco::check_and_report( product_info:product_info, workarounds:workarounds, workaround_params:workaround_params, reporting:reporting, vuln_ranges:vuln_ranges );
References
- http://www.securitytracker.com/id/1040725
- http://www.securitytracker.com/id/1040725
- https://ics-cert.us-cert.gov/advisories/ICSA-18-184-01
- https://ics-cert.us-cert.gov/advisories/ICSA-18-184-01
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-asa3
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-asa3