{
  "document": {
    "acknowledgments": [
      {
        "summary": "Cisco would like to thank Greg Zaverucha of Microsoft for reporting this vulnerability."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the Deterministic Random Bit Generator (DRBG), also  known as Pseudorandom Number Generator (PRNG), used in Cisco Adaptive  Security Appliance (ASA) Software and Cisco Firepower Threat Defense  (FTD) Software could allow an unauthenticated, remote attacker to cause a  cryptographic collision, enabling the attacker to discover the private  key of an affected device.\r\n\r\nThe vulnerability is due to  insufficient entropy in the DRBG when generating cryptographic keys. An  attacker could exploit this vulnerability by generating a large number  of cryptographic keys on an affected device and looking for collisions  with target devices. A successful exploit could allow the attacker to  impersonate an affected target device or to decrypt  traffic secured by  an affected key that is sent to or from an affected target device.\r\nCisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability affects the following Cisco products that are running Cisco ASA Software Releases 9.8 or 9.9 or FTD Software Releases 6.2.1, 6.2.2, or 6.2.3:\r\n\r\n3000 Series Industrial Security Appliances (ISAs)\r\nAdaptive Security Appliance (ASA) 5500-X Series with FirePOWER Services\r\nAdaptive Security Virtual Appliance (ASAv)\r\nFirepower 4100 Series\r\nFirepower 9300 ASA Security Module\r\nFirepower Threat Defense Virtual\r\n\r\nNote: Devices running other releases of Cisco ASA Software or FTD Software may also be vulnerable if they are configured with at least one of the following:\r\n\r\nA Trustpoint that is based on an RSA or ECDSA key pair that has been generated while running an affected release\r\nAn RSA key pair for use with SSH Access that has been generated while running an affected release\r\n\r\nIf no Trustpoint is configured and no RSA key pair for use with SSH Access is present, a device is vulnerable only while running an affected release.\r\n\r\nFor information about which Cisco ASA Software and FTD Software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.\r\n\r\nASA Software\r\n\r\nIn the following table, the left column lists the Cisco ASA features that are potentially vulnerable. The right column indicates the basic configuration for the feature from the show running-config CLI command, if it can be determined.\r\n                                Cisco ASA Feature\r\n              Possible Vulnerable Configuration\r\n                                              Adaptive Security Device Manager (ASDM)1\r\n              http server enable \u003cport\u003e\r\nhttp \u003cremote_ip_address\u003e \u003cremote_subnet_mask\u003e \u003cinterface_name\u003e                                                AnyConnect SSL VPN              webvpn\r\n enable \u003cinterface_name\u003e                                  Cisco Security Manager1              http server enable \u003cport\u003e\r\nhttp \u003cremote_ip_address\u003e \u003cremote_subnet_mask\u003e \u003cinterface_name\u003e                                  Clientless SSL VPN (WebVPN)                            webvpn\r\n enable \u003cinterface_name\u003e                                  IKEv1 VPN (Remote Access and LAN-to-LAN)\r\nusing Certificate-based Authentication\r\n              crypto ikev1 enable \u003cinterface_name\u003e\r\ncrypto ikev1 policy \u003cpriority\u003e\r\n authentication rsa-sig\r\ntunnel-group \u003ctunnel_group_name\u003e ipsec-attributes\r\n trust-point \u003ctrustpoint_name\u003e                                                IKEv2 VPN (Remote Access and LAN-to-LAN)\r\nusing Certificate-based Authentication\r\n              crypto ikev2 enable \u003cinterface_name\u003e\r\ntunnel-group \u003ctunnel_group_name\u003e ipsec-attributes\r\n ikev2 remote-authentication certificate\r\n ikev2 local-authentication certificate \u003ctrustpoint_name\u003e                                                Local Certificate Authority (CA)              crypto ca server\r\n no shutdown                                  Mobile Device Manager (MDM) Proxy\r\n              mdm-proxy\r\n enable \u003cinterface_name\u003e                                   Mobile User Security (MUS)\r\n              webvpn\r\n mus password \u003cpassword\u003e\r\n mus server enable port \u003cport #\u003e\r\n mus \u003caddress\u003e \u003cmask\u003e \u003cinterface_name\u003e                                  Proxy Bypass              webvpn\r\n proxy-bypass                                  REST API1              rest-api image disk0:/\u003cimage name\u003e\r\nrest-api agent                                  SSH Access2\r\n              ssh \u003cremote_ip_address\u003e \u003cremote_subnet_mask\u003e \u003cinterface_name\u003e\r\n                    1 ASDM, CSM, and REST API services are accessible only from an IP address in the configured http command range.\r\n2 SSH service is accessible only from an IP address in the configured ssh command range.\r\nFTD Software\r\n\r\nIn the following table, the left column lists the Cisco FTD features that are potentially vulnerable. The right column indicates the basic configuration for the feature from the show running-config CLI command, if it can be determined.\r\n                                Cisco FTD Feature                            Possible Vulnerable Configuration                                                            AnyConnect SSL VPN1,2              webvpn\r\n enable \u003cinterface_name                                   Clientless SSL VPN (WebVPN)2                            webvpn\r\n enable \u003cinterface_name\u003e                                  HTTP Service enabled3,4              http server enable \u003cport #\u003e\r\nhttp \u003cremote_ip_address\u003e \u003cremote_subnet_mask\u003e \u003cinterface_name\u003e                                  IKEv1 VPN (Remote Access and LAN-to-LAN)\r\nusing Certificate-based Authentication1,2\r\n              crypto ikev1 enable \u003cinterface_name\u003e\r\ncrypto ikev1 policy \u003cpriority\u003e\r\n authentication rsa-sig\r\ntunnel-group \u003ctunnel_group_name\u003e ipsec-attributes\r\n trust-point \u003ctrustpoint_name\u003e                                                IKEv2 VPN (Remote Access and LAN-to-LAN)\r\nusing Certificate-based Authentication1,2\r\n              crypto ikev2 enable \u003cinterface_name\u003e\r\ntunnel-group \u003ctunnel_group_name\u003e ipsec-attributes\r\n ikev2 remote-authentication certificate\r\n ikev2 local-authentication certificate \u003ctrustpoint_name\u003e                                                SSH Service5\r\n              ssh \u003cremote_ip_address\u003e \u003cremote_subnet_mask\u003e \u003cinterface_name\u003e                    1 Remote Access VPN features are enabled via Devices \u003e VPN \u003e Remote Access in the Cisco FMC or via Device \u003e Remote Access VPN in Cisco Firepower Device Manager (FDM).\r\n2 The Clientless SSL VPN feature is not officially supported but can be enabled via FlexConfig.\r\n3 The HTTP feature is enabled via Firepower Threat Defense Platform Settings \u003e HTTP in the Cisco Firepower Management Console (FMC).\r\n4 HTTP service is accessible only from an IP address in the configured http command range.\r\n5 SSH is accessible only from an IP address in the configured ssh command range.\r\nDetermining the Cisco ASA Software Release\r\nTo determine which Cisco ASA Software release is running on a device, administrators can log in to the device, use the show version | include Version command in the CLI, and refer to the output of the command. The following example shows the output of the command for a device that is running Cisco ASA Software Release 9.9.2.18:\r\n\r\n\r\nciscoasa# show version | include Version\r\nCisco Adaptive Security Appliance Software Version 9.9.2.18  Device Manager Version 7.4(1)  .  .  .\r\n\r\nIf a device is managed by using Cisco Adaptive Security Device Manager (ASDM), administrators can also determine which release is running on a device by referring to the release information in the table that appears in the Cisco ASDM login window or the Device Dashboard tab of the Cisco ASDM Home pane.\r\n  Determining the Cisco FTD Software Release\r\nTo determine which Cisco FTD Software release is running on a device, administrators can log in to the device, use the show version command in the CLI, and refer to the output of the command. The following example shows the output of the command for a device that is running Cisco FTD Software Release 6.2.0:\r\n\r\n\r\n\u003e show version\r\n  ---------------------[ ftd ]---------------------  Model : Cisco ASA5525-X Threat Defense (75) Version 6.2.0 (Build 362)  UUID : 2849ba3c-ecb8-11e6-98ca-b9fc2975893c  Rules update version : 2017-03-15-001-vrt  VDB version : 279  ----------------------------------------------------",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect Cisco ASA Software or FTD Software running on the following platforms:\r\n\r\nASA 1000V Cloud Firewall\r\nASA 5505 Adaptive Security Appliance1\r\nASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers\r\nFirepower 2100 Series\r\n  1 ASA 5500 Series Adaptive Security Appliances other than  the ASA 5505 have reached the end-of-support milestone and are no  longer evaluated for security vulnerabilities.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "To avoid the use of potentially weak cryptographic keys, administrators can generate a key pair and a corresponding certificate on a trusted device outside of the Cisco ASA or FTD device and then import the base 64 encoded PKCS #12 file containing the keys and certificate(s) to the Cisco ASA or FTD device using the crypto ca import \u003ctrust-point-name\u003e pkcs12 \u003cpassphrase\u003e command in global configuration mode.\r\n\r\nSee the ASA 8.x: Renew and Install the SSL Certificate with ASDM [\"https://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/107956-renew-ssl.html#proc\"] tech note for further details, including steps for how to accomplish this task via the Cisco Adaptive Security Device Manager (ASDM).",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:\r\nhttps://www.cisco.com/c/en/us/products/end-user-license-agreement.html [\"https://www.cisco.com/c/en/us/products/end-user-license-agreement.html\"]\r\n\r\nAdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.\r\n\r\nWhen considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\n  Customers Without Service Contracts\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC:\r\nhttps://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]\r\n\r\nCustomers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n  Fixed Releases\r\nCustomers are advised to upgrade to an appropriate release [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"] as indicated in the applicable table in this section. To ensure a complete upgrade solution, customers should consider that this advisory is part of a collection that includes the following advisories:\r\n\r\ncisco-sa-20190501-asa-csrf [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-csrf\"]: Cisco Adaptive Security Appliance Software Cross-Site Request Forgery Vulnerability\r\ncisco-sa-20190501-asa-frpwrtd-dos [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-frpwrtd-dos\"]: Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software TCP Timer Handling Denial of Service Vulnerability\r\ncisco-sa-20190501-asa-ftd-dos [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-dos\"]: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Denial of Service Vulnerability\r\ncisco-sa-20190501-asa-ftd-entropy [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy\"]: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entropy Keys Vulnerability\r\ncisco-sa-20190501-asa-ftd-ike-dos [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-ike-dos\"]: Cisco      Adaptive Security Appliance Software and Cisco Firepower Threat Defense      Software MOBIKE Denial of Service Vulnerability\r\ncisco-sa-20190501-asaftd-saml-vpn [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asaftd-saml-vpn\"]: Cisco      Adaptive Security Appliance Software and Firepower Threat Defense      Software VPN SAML Authentication Bypass Vulnerability\r\ncisco-sa-20190501-asa-ipsec-dos [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ipsec-dos\"]: Cisco Adaptive Security Appliance Software IPsec Denial of Service Vulnerability\r\ncisco-sa-20190501-firepower-dos [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-firepower-dos\"]: Cisco Firepower Threat Defense Software TCP Ingress Handler Denial of Service Vulnerability\r\ncisco-sa-20190501-frpwr-dos: [\"http://https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-frpwr-dos\"] Cisco Firepower Threat Defense Software Packet Processing Denial of Service Vulnerability\r\ncisco-sa-20190501-frpwr-smb-snort [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-frpwr-smb-snort\"]: Cisco Firepower Threat Defense Software SMB Protocol Preprocessor Detection Engine Denial of Service Vulnerabilities\r\ncisco-sa-20190501-sd-cpu-dos [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-sd-cpu-dos\"]: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Denial of Service Vulnerability\r\n\r\nIn the following table(s), the left column lists Cisco software releases. The center column indicates whether a release is affected by the vulnerability described in this advisory and the release that includes the fix for this vulnerability. The right column indicates whether a release is affected by all the vulnerabilities described in this collection of advisories and which release includes fixes for those vulnerabilities.\r\n\r\nNote: After upgrading to a fixed release, administrators must re-generate all RSA and ECDSA key pairs that were generated on an affected device while running a vulnerable release.\r\n\r\nCisco ASA Software\r\n                                Cisco ASA Software Release\r\n              Recommended Release for This Vulnerability\r\n              Recommended Release for All Vulnerabilities Described in the Collection of Advisories\r\n                                              Prior to 9.41\r\n              Not vulnerable\r\n              9.4.4.34                                  9.4              Not vulnerable\r\n              9.4.4.34                                  9.51              Not vulnerable\r\n               9.6.4.25                                  9.6              Not vulnerable              9.6.4.25                                  9.71              Not vulnerable              9.8.4                                  9.8              9.8.4\r\n              9.8.4\r\n                                  9.9              9.9.2.50               9.9.2.50                                   9.10              Not vulnerable\r\n              9.10.1.17                                  9.12              Not vulnerable              Not vulnerable\r\n                    1Cisco ASA Software releases prior to Release 9.4 and Cisco ASA Software Releases 9.5 and 9.7 have reached end of maintenance. Customers should migrate to a supported release that includes the fix for this vulnerability.\r\nCisco FTD Software\r\n                                Cisco FTD Software Release\r\n              Recommended Release for This Vulnerability\r\n              Recommended Release for All Vulnerabilities Described in the Collection of Advisories\r\n                                              6.0              Not vulnerable              6.2.3.12                                  6.0.1              Not vulnerable              6.2.3.12                                  6.1.0              Not vulnerable              6.2.3.12                                  6.2.0              Not vulnerable              6.2.3.12                                  6.2.1              6.2.3.12\r\n              6.2.3.12                                  6.2.2              6.2.3.12\r\n              6.2.3.12                                  6.2.3              6.2.3.12              6.2.3.12                                  6.3.0              6.3.0.3\r\n              6.3.0.3\r\n                                  6.4.0              Not vulnerable              Not vulnerable\r\nTo upgrade to a fixed release of Cisco FTD Software, customers can do one of the following:\r\n\r\nFor devices that are managed by using Cisco Firepower Management Center (FMC), use the FMC interface to install the upgrade. After installation is complete, reapply the access control policy.\r\nFor devices that are managed by using Cisco Firepower Device Manager (FDM), use the FDM interface to install the upgrade. After installation is complete, reapply the access control policy.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
        "title": "Vulnerability Policy"
      },
      {
        "category": "general",
        "text": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "Cisco would like to thank Greg Zaverucha of Microsoft for reporting this vulnerability.",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
        "title": "Legal Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "Emergency Support:\r\n+1 877 228 7302 (toll-free within North America)\r\n+1 408 525 6532 (International direct-dial)\r\nNon-emergency Support:\r\nEmail: psirt@cisco.com\r\nSupport requests that are received via e-mail are typically acknowledged within 48 hours.",
      "issuing_authority": "Cisco product security incident response is the responsibility of the Cisco Product Security Incident Response Team (PSIRT). The Cisco PSIRT is a dedicated, global team that manages the receipt, investigation, and public reporting of security vulnerability information that is related to Cisco products and networks. The on-call Cisco PSIRT works 24x7 with Cisco customers, independent security researchers, consultants, industry organizations, and other vendors to identify possible security issues with Cisco products and networks.\r\nMore information can be found in Cisco Security Vulnerability Policy available at https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entropy Keys Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy"
      },
      {
        "category": "external",
        "summary": "ASA 8.x: Renew and Install the SSL Certificate with ASDM",
        "url": "https://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/107956-renew-ssl.html#proc"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html",
        "url": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories and Alerts page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html",
        "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"
      },
      {
        "category": "external",
        "summary": "upgrade to an appropriate release",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-asa-csrf",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-csrf"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-asa-frpwrtd-dos",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-frpwrtd-dos"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-asa-ftd-dos",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-dos"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-asa-ftd-entropy",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-asa-ftd-ike-dos",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-ike-dos"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-asaftd-saml-vpn",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asaftd-saml-vpn"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-asa-ipsec-dos",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ipsec-dos"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-firepower-dos",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-firepower-dos"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-frpwr-dos:",
        "url": "http://https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-frpwr-dos"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-frpwr-smb-snort",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-frpwr-smb-snort"
      },
      {
        "category": "external",
        "summary": "cisco-sa-20190501-sd-cpu-dos",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-sd-cpu-dos"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entropy Keys Vulnerability",
    "tracking": {
      "current_release_date": "2019-05-02T17:49:48+00:00",
      "generator": {
        "date": "2022-09-03T03:15:23+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-20190501-asa-ftd-entropy",
      "initial_release_date": "2019-05-01T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2019-05-01T15:23:24+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        },
        {
          "date": "2019-05-02T17:49:48+00:00",
          "number": "1.1.0",
          "summary": "Updated the FTD fixed releases table to indicate that FTD Software Release 6.3.0.3 is available."
        }
      ],
      "status": "final",
      "version": "1.1.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "9.8.1",
                    "product": {
                      "name": "9.8.1",
                      "product_id": "CSAFPID-232585"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.1.5",
                    "product": {
                      "name": "9.8.1.5",
                      "product_id": "CSAFPID-232586"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.1.7",
                    "product": {
                      "name": "9.8.1.7",
                      "product_id": "CSAFPID-232587"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2",
                    "product": {
                      "name": "9.8.2",
                      "product_id": "CSAFPID-232588"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.8",
                    "product": {
                      "name": "9.8.2.8",
                      "product_id": "CSAFPID-232589"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.10",
                    "product": {
                      "name": "9.8.2.10",
                      "product_id": "CSAFPID-232895"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.11",
                    "product": {
                      "name": "9.8.2.11",
                      "product_id": "CSAFPID-232896"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.14",
                    "product": {
                      "name": "9.8.2.14",
                      "product_id": "CSAFPID-232897"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.15",
                    "product": {
                      "name": "9.8.2.15",
                      "product_id": "CSAFPID-232898"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.17",
                    "product": {
                      "name": "9.8.2.17",
                      "product_id": "CSAFPID-232899"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.18",
                    "product": {
                      "name": "9.8.2.18",
                      "product_id": "CSAFPID-232900"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.19",
                    "product": {
                      "name": "9.8.2.19",
                      "product_id": "CSAFPID-232901"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.20",
                    "product": {
                      "name": "9.8.2.20",
                      "product_id": "CSAFPID-232902"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.3",
                    "product": {
                      "name": "9.8.2.3",
                      "product_id": "CSAFPID-235915"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.24",
                    "product": {
                      "name": "9.8.2.24",
                      "product_id": "CSAFPID-239005"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.26",
                    "product": {
                      "name": "9.8.2.26",
                      "product_id": "CSAFPID-239006"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.28",
                    "product": {
                      "name": "9.8.2.28",
                      "product_id": "CSAFPID-248821"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.33",
                    "product": {
                      "name": "9.8.2.33",
                      "product_id": "CSAFPID-248822"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.35",
                    "product": {
                      "name": "9.8.2.35",
                      "product_id": "CSAFPID-248823"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.8.2.38",
                    "product": {
                      "name": "9.8.2.38",
                      "product_id": "CSAFPID-248824"
                    }
                  }
                ],
                "category": "product_version",
                "name": "9.8"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "9.9.1",
                    "product": {
                      "name": "9.9.1",
                      "product_id": "CSAFPID-232894"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.9.1.2",
                    "product": {
                      "name": "9.9.1.2",
                      "product_id": "CSAFPID-235910"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.9.1.3",
                    "product": {
                      "name": "9.9.1.3",
                      "product_id": "CSAFPID-235911"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.9.2",
                    "product": {
                      "name": "9.9.2",
                      "product_id": "CSAFPID-235912"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.9.2.1",
                    "product": {
                      "name": "9.9.2.1",
                      "product_id": "CSAFPID-235913"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.9.1.4",
                    "product": {
                      "name": "9.9.1.4",
                      "product_id": "CSAFPID-235914"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.9.2.9",
                    "product": {
                      "name": "9.9.2.9",
                      "product_id": "CSAFPID-248817"
                    }
                  }
                ],
                "category": "product_version",
                "name": "9.9"
              }
            ],
            "category": "product_family",
            "name": "Cisco Adaptive Security Appliance (ASA) Software"
          },
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "6.2.1",
                    "product": {
                      "name": "6.2.1",
                      "product_id": "CSAFPID-226359"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "6.2.2",
                    "product": {
                      "name": "6.2.2",
                      "product_id": "CSAFPID-226360"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "6.2.2.1",
                    "product": {
                      "name": "6.2.2.1",
                      "product_id": "CSAFPID-232929"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "6.2.2.2",
                    "product": {
                      "name": "6.2.2.2",
                      "product_id": "CSAFPID-232930"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "6.2.3",
                    "product": {
                      "name": "6.2.3",
                      "product_id": "CSAFPID-233334"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "6.2.3.1",
                    "product": {
                      "name": "6.2.3.1",
                      "product_id": "CSAFPID-245396"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "6.2.3.2",
                    "product": {
                      "name": "6.2.3.2",
                      "product_id": "CSAFPID-245397"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "6.2.2.3",
                    "product": {
                      "name": "6.2.2.3",
                      "product_id": "CSAFPID-247895"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "6.2.2.4",
                    "product": {
                      "name": "6.2.2.4",
                      "product_id": "CSAFPID-247896"
                    }
                  }
                ],
                "category": "product_version",
                "name": "6.2"
              }
            ],
            "category": "product_family",
            "name": "Cisco Firepower Threat Defense Software"
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-1715",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvj52266"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-232585",
          "CSAFPID-232586",
          "CSAFPID-232587",
          "CSAFPID-232588",
          "CSAFPID-232589",
          "CSAFPID-232894",
          "CSAFPID-232895",
          "CSAFPID-232896",
          "CSAFPID-232897",
          "CSAFPID-232898",
          "CSAFPID-232899",
          "CSAFPID-232900",
          "CSAFPID-232901",
          "CSAFPID-232902",
          "CSAFPID-235910",
          "CSAFPID-235911",
          "CSAFPID-235912",
          "CSAFPID-235913",
          "CSAFPID-235914",
          "CSAFPID-235915",
          "CSAFPID-239005",
          "CSAFPID-239006",
          "CSAFPID-248817",
          "CSAFPID-248821",
          "CSAFPID-248822",
          "CSAFPID-248823",
          "CSAFPID-248824",
          "CSAFPID-226359",
          "CSAFPID-226360",
          "CSAFPID-232929",
          "CSAFPID-232930",
          "CSAFPID-233334",
          "CSAFPID-245396",
          "CSAFPID-245397",
          "CSAFPID-247895",
          "CSAFPID-247896"
        ]
      },
      "release_date": "2019-05-01T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-226359",
            "CSAFPID-226360",
            "CSAFPID-232929",
            "CSAFPID-232930",
            "CSAFPID-233334",
            "CSAFPID-245396",
            "CSAFPID-245397",
            "CSAFPID-247895",
            "CSAFPID-247896",
            "CSAFPID-232585",
            "CSAFPID-232586",
            "CSAFPID-232587",
            "CSAFPID-232588",
            "CSAFPID-232589",
            "CSAFPID-232894",
            "CSAFPID-232895",
            "CSAFPID-232896",
            "CSAFPID-232897",
            "CSAFPID-232898",
            "CSAFPID-232899",
            "CSAFPID-232900",
            "CSAFPID-232901",
            "CSAFPID-232902",
            "CSAFPID-235910",
            "CSAFPID-235911",
            "CSAFPID-235912",
            "CSAFPID-235913",
            "CSAFPID-235914",
            "CSAFPID-235915",
            "CSAFPID-239005",
            "CSAFPID-239006",
            "CSAFPID-248817",
            "CSAFPID-248821",
            "CSAFPID-248822",
            "CSAFPID-248823",
            "CSAFPID-248824"
          ],
          "url": "https://software.cisco.com"
        },
        {
          "category": "workaround",
          "details": "To avoid the use of potentially weak cryptographic keys, administrators can generate a key pair and a corresponding certificate on a trusted device outside of the Cisco ASA or FTD device and then import the base 64 encoded PKCS #12 file containing the keys and certificate(s) to the Cisco ASA or FTD device using the crypto ca import \u003ctrust-point-name\u003e pkcs12 \u003cpassphrase\u003e command in global configuration mode.\r\n\r\nSee the ASA 8.x: Renew and Install the SSL Certificate with ASDM [\"https://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/107956-renew-ssl.html#proc\"] tech note for further details, including steps for how to accomplish this task via the Cisco Adaptive Security Device Manager (ASDM).",
          "product_ids": [
            "CSAFPID-232585",
            "CSAFPID-232586",
            "CSAFPID-232587",
            "CSAFPID-232588",
            "CSAFPID-232589",
            "CSAFPID-232894",
            "CSAFPID-232895",
            "CSAFPID-232896",
            "CSAFPID-232897",
            "CSAFPID-232898",
            "CSAFPID-232899",
            "CSAFPID-232900",
            "CSAFPID-232901",
            "CSAFPID-232902",
            "CSAFPID-235910",
            "CSAFPID-235911",
            "CSAFPID-235912",
            "CSAFPID-235913",
            "CSAFPID-235914",
            "CSAFPID-235915",
            "CSAFPID-239005",
            "CSAFPID-239006",
            "CSAFPID-248817",
            "CSAFPID-248821",
            "CSAFPID-248822",
            "CSAFPID-248823",
            "CSAFPID-248824",
            "CSAFPID-226359",
            "CSAFPID-226360",
            "CSAFPID-232929",
            "CSAFPID-232930",
            "CSAFPID-233334",
            "CSAFPID-245396",
            "CSAFPID-245397",
            "CSAFPID-247895",
            "CSAFPID-247896"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-232585",
            "CSAFPID-232586",
            "CSAFPID-232587",
            "CSAFPID-232588",
            "CSAFPID-232589",
            "CSAFPID-232894",
            "CSAFPID-232895",
            "CSAFPID-232896",
            "CSAFPID-232897",
            "CSAFPID-232898",
            "CSAFPID-232899",
            "CSAFPID-232900",
            "CSAFPID-232901",
            "CSAFPID-232902",
            "CSAFPID-235910",
            "CSAFPID-235911",
            "CSAFPID-235912",
            "CSAFPID-235913",
            "CSAFPID-235914",
            "CSAFPID-235915",
            "CSAFPID-239005",
            "CSAFPID-239006",
            "CSAFPID-248817",
            "CSAFPID-248821",
            "CSAFPID-248822",
            "CSAFPID-248823",
            "CSAFPID-248824",
            "CSAFPID-226359",
            "CSAFPID-226360",
            "CSAFPID-232929",
            "CSAFPID-232930",
            "CSAFPID-233334",
            "CSAFPID-245396",
            "CSAFPID-245397",
            "CSAFPID-247895",
            "CSAFPID-247896"
          ]
        }
      ],
      "title": "Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software Low Entropy Keys Vulnerability"
    }
  ]
}