{
  "document": {
    "acknowledgments": [
      {
        "summary": "On October 16, 2018, libssh.org publicly disclosed this vulnerability in a security bulletin at the following link: https://www.libssh.org/2018/10/16/libssh-0-8-4-and-0-7-6-security-and-bugfix-release/ [\"https://www.libssh.org/2018/10/16/libssh-0-8-4-and-0-7-6-security-and-bugfix-release/\"]"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "title": "Summary",
        "text": "A vulnerability in libssh could allow an unauthenticated, remote attacker to bypass authentication on a targeted system.\r\n\r\nThe vulnerability is due to improper authentication operations by the server-side state machine of the affected software. An attacker could exploit this vulnerability by presenting a SSH2_MSG_USERAUTH_SUCCESS message to a targeted system. A successful exploit could allow the attacker to bypass authentication and gain unauthorized access to a targeted system.\r\n\r\n\r\n\r\n  "
      },
      {
        "category": "general",
        "title": "Affected Products",
        "text": "Cisco investigated its product line to determine which products and services may be affected by this vulnerability.\r\n\r\nThe Vulnerable Products [\"#vulnerable\"] section will include Cisco bug IDs for each affected product or service. The bugs are accessible through the Cisco Bug Search Tool [\"https://bst.cloudapps.cisco.com/bugsearch/bug/BUGID\"] and contain additional platform-specific information, including workarounds (if available) and fixed software releases.\r\n\r\nAny product not listed in the Vulnerable Products [\"#vulnerable\"] section of this advisory is to be considered not vulnerable."
      },
      {
        "category": "general",
        "title": "Vulnerable Products",
        "text": "Cisco has investigated its product line and has determined that no products or services are known to be affected by this vulnerability."
      },
      {
        "category": "general",
        "title": "Products Confirmed Not Vulnerable",
        "text": "Only products and services listed in the Vulnerable Products [\"#vulnerable\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the  following products and services. All members of the product families in  the following list are not considered to be affected by this  vulnerability unless they are explicitly listed in the preceding Vulnerable Products [\"#vulnerable\"] section:\r\n  Cable Modems\r\n\r\nCisco Stealthwatch Online Visibility Assessment\r\nCollaboration and Social Media\r\n\r\nCisco Webex Meetings Server\r\nEndpoint Clients and Client Software\r\n\r\nCisco Jabber Guest\r\nNetwork Application, Service, and Acceleration\r\n\r\nCisco Adaptive Security Appliance (ASA) Software\r\nCisco Cloud Services Platform 2100\r\nNetwork and Content Security Devices\r\n\r\nCisco ASA Next-Generation Firewall Services\r\nCisco Content Security Management Appliance (SMA)\r\nCisco Email Security Appliance (ESA)\r\nCisco FireSIGHT System\r\nCisco Identity Services Engine (ISE)\r\nCisco Web Security Appliance (WSA)\r\nNetwork Management and Provisioning\r\n\r\nCisco Elastic Services Controller (ESC)\r\nCisco Enterprise Service Automation\r\nCisco FindIT Network Manager\r\nCisco NetFlow Generation Appliance\r\nCisco Network Analysis Module\r\nCisco Policy Suite\r\nCisco Prime Access Registrar\r\nCisco Prime Collaboration Provisioning\r\nCisco Prime Infrastructure\r\nCisco Prime Network Registrar Virtual Appliance\r\nCisco Prime Network Registrar\r\nCisco Prime Performance Manager\r\nCisco WAN Automation Engine (WAE)\r\nRouting and Switching - Enterprise and Service Provider\r\n\r\nCisco Application Policy Infrastructure Controller (APIC)\r\nCisco IOS XR Software for Cisco Network Convergence System 6000 Series Routers\r\nCisco IOS XR Software\r\nCisco Nexus 9000 Series Switches - Standalone, NX-OS mode\r\nCisco Nexus 9000 Series Switches\r\nUnified Computing\r\n\r\nCisco UCS Director\r\nVoice and Unified Communications Devices\r\n\r\nCisco IP Interoperability and Collaboration System (IPICS)\r\nCisco Management Heartbeat Server\r\nCisco Unified Communications Manager Session Management Edition\r\nCisco Unified Communications Manager\r\nCisco Unified Contact Center Express\r\nVideo, Streaming, TelePresence, and Transcoding Devices\r\n\r\nCisco Cloud Object Storage\r\nCisco DCM Series D990x Digital Content Manager\r\nCisco VDS Recorder\r\nCisco VDS-TV Caching Nodes\r\nCisco VDS-TV Streamer\r\nCisco VDS-TV Vault\r\nCisco Video Distribution Suite for Internet Streaming (VDS-IS/CDS-IS)\r\nCisco Video Surveillance 4300E and 4500E High-Definition IP Cameras\r\nCisco Video Surveillance Media Server\r\nWireless\r\n\r\nCisco Wireless LAN Controller\r\nCisco Cloud Hosted Services\r\n\r\nCisco Cloud Email Security\r\nCisco Cloudlock\r\nCisco Energy Management\r\nCisco Smart Software Manager Satellite\r\nCisco Stealthwatch Learning Networks License\r\nCisco Umbrella\r\nCisco Virtual HetNet"
      },
      {
        "category": "general",
        "title": "Workarounds",
        "text": "Any workarounds will be documented in the product-specific Cisco  bugs, which are identified in the Vulnerable Products [\"#vulnerable\"] section of this  advisory."
      },
      {
        "category": "general",
        "title": "Fixed Software",
        "text": "For information about fixed software releases, consult the Cisco bugs identified in the Vulnerable Products [\"#vulnerable\"] section of this advisory.\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 [\"https://www.cisco.com/go/psirt\"] page, 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 TAC or their contracted maintenance providers."
      },
      {
        "category": "general",
        "title": "Vulnerability Policy",
        "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."
      },
      {
        "category": "general",
        "title": "Exploitation and Public Announcements",
        "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."
      },
      {
        "category": "general",
        "title": "Source",
        "text": "On October 16, 2018, libssh.org publicly disclosed this vulnerability in a security bulletin at the following link: https://www.libssh.org/2018/10/16/libssh-0-8-4-and-0-7-6-security-and-bugfix-release/ [\"https://www.libssh.org/2018/10/16/libssh-0-8-4-and-0-7-6-security-and-bugfix-release/\"]"
      },
      {
        "category": "legal_disclaimer",
        "title": "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."
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@cisco.com",
      "issuing_authority": "Cisco PSIRT",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "libssh Authentication Bypass Vulnerability Affecting Cisco Products: October 2018",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181019-libssh"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "Cisco Bug Search Tool",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/BUGID"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories and Alerts",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "https://www.libssh.org/2018/10/16/libssh-0-8-4-and-0-7-6-security-and-bugfix-release/",
        "url": "https://www.libssh.org/2018/10/16/libssh-0-8-4-and-0-7-6-security-and-bugfix-release/"
      }
    ],
    "title": "libssh Authentication Bypass Vulnerability Affecting Cisco Products: October 2018",
    "tracking": {
      "current_release_date": "2018-11-05T20:29:00+00:00",
      "generator": {
        "date": "2024-05-10T22:45:57+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-20181019-libssh",
      "initial_release_date": "2018-10-19T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2018-10-19T16:37:53+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        },
        {
          "date": "2018-10-22T17:23:12+00:00",
          "number": "1.1.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2018-10-23T16:26:56+00:00",
          "number": "1.2.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2018-10-24T16:29:06+00:00",
          "number": "1.3.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2018-10-25T16:11:42+00:00",
          "number": "1.4.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2018-10-26T15:51:56+00:00",
          "number": "1.5.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2018-10-30T18:42:22+00:00",
          "number": "1.6.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2018-10-31T19:12:31+00:00",
          "number": "1.7.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2018-11-05T20:29:52+00:00",
          "number": "1.8.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        }
      ],
      "status": "final",
      "version": "1.8.0"
    }
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-10933",
      "notes": [
        {
          "category": "general",
          "title": "No Notes",
          "text": "No additional information for this vulneraiblity is currently avaialbe."
        }
      ],
      "release_date": "2018-10-17T14:47:00+00:00",
      "title": "libssh Authentication Bypass Vulnerability Affecting Cisco Products: October 2018"
    }
  ]
}