{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
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    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
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        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Cisco Expressway erm\u00f6glicht die Nutzung verschiedener Intranetdienste aus dem Internet, ohne ein VPN zu ben\u00f6tigen.\r\nDie Cisco TelePresence L\u00f6sungen erlauben die weltweite Zusammenarbeit und Kommunikation von Kollegen, Partnern und Beobachtern.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Cisco Expressway und Cisco TelePresence ausnutzen, um Dateien zu manipulieren und Sicherheitsma\u00dfnahmen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- CISCO Appliance",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
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    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2022-0593 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2022/wid-sec-w-2022-0593.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-0593 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0593"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory CISCO-SA-EXPRESSWAY-OVERWRITE-3BUQW8LH vom 2023-04-04",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-overwrite-3buqW8LH"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2022-07-06",
        "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-overwrite-3buqW8LH"
      }
    ],
    "source_lang": "en-US",
    "title": "Cisco Expressway: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2023-04-04T22:00:00.000+00:00",
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        "date": "2024-08-15T17:31:15.721+00:00",
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        {
          "date": "2023-04-04T22:00:00.000+00:00",
          "number": "2",
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    }
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      {
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          {
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          "category": "description",
          "text": "Es existiert eine Schwachstelle in Cisco Expressway und Cisco TelePresence. Der Fehler ist auf eine unsachgem\u00e4\u00dfe Zertifikatsvalidierung zur\u00fcckzuf\u00fchren. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, indem er eine Man-in-the-Middle-Technik einsetzt, um den Datenverkehr zwischen den Ger\u00e4ten abzufangen, und dann ein manipuliertes Zertifikat verwendet, um sich als Endpunkt auszugeben."
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      "release_date": "2022-07-06T22:00:00.000+00:00",
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{
  "document": {
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      "text": "hoch"
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        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Cisco Expressway erm\u00f6glicht die Nutzung verschiedener Intranetdienste aus dem Internet, ohne ein VPN zu ben\u00f6tigen.\r\nDie Cisco TelePresence L\u00f6sungen erlauben die weltweite Zusammenarbeit und Kommunikation von Kollegen, Partnern und Beobachtern.",
        "title": "Produktbeschreibung"
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    {
      "lang": "es",
      "value": "M\u00faltiples vulnerabilidades en la API y en la interfaz de administraci\u00f3n basada en web de la serie Expressway de Cisco y del servidor de comunicaciones de v\u00eddeo (VCS) de Cisco TelePresence podr\u00edan permitir a un atacante remoto sobrescribir archivos arbitrarios o conducir ataques de envenenamiento de bytes nulos en un dispositivo afectado. Nota: La serie Expressway de Cisco es referida al dispositivo Expressway Control (Expressway-C) y al dispositivo Expressway Edge (Expressway-E). Para m\u00e1s informaci\u00f3n sobre estas vulnerabilidades, consulte la secci\u00f3n Detalles de este aviso"
    }
  ],
  "id": "CVE-2022-20812",
  "lastModified": "2024-11-21T06:43:36.213",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 8.5,
          "confidentialityImpact": "NONE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 9.2,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 9.0,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-07-06T21:15:11.643",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-csrf-sqpsSfY6"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-overwrite-3buqW8LH"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-csrf-sqpsSfY6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-overwrite-3buqW8LH"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-158"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Cisco SSM On-Prem versions ant\u00e9rieures \u00e0 8-202112",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    },
    {
      "description": "Cisco Expressway Series et Cisco TelePresence VCS versions ant\u00e9rieures \u00e0 14.0.7",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2022-20812",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-20812"
    },
    {
      "name": "CVE-2022-20808",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-20808"
    },
    {
      "name": "CVE-2022-20813",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-20813"
    }
  ],
  "initial_release_date": "2022-07-07T00:00:00",
  "last_revision_date": "2022-07-07T00:00:00",
  "links": [],
  "reference": "CERTFR-2022-AVI-618",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2022-07-07T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Cisco.\nCertaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni\nde service \u00e0 distance, une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es et une\natteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.\n",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Cisco",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Cisco cisco-sa-onprem-privesc-tP6uNZOS du 06 juillet 2022",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-onprem-privesc-tP6uNZOS"
    },
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Cisco cisco-sa-expressway-overwrite-3buqW8LH du 06 juillet 2022",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-overwrite-3buqW8LH"
    }
  ]
}

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Cisco Expressway Series et Cisco TelePresence VCS versions ant\u00e9rieures \u00e0 14.3",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2022-20812",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-20812"
    },
    {
      "name": "CVE-2022-20813",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-20813"
    }
  ],
  "initial_release_date": "2023-04-05T00:00:00",
  "last_revision_date": "2023-04-05T00:00:00",
  "links": [],
  "reference": "CERTFR-2023-AVI-0285",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2023-04-05T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Cisco Expressway\nSeries et Cisco TelePresence VCS. Elles permettent \u00e0 un attaquant de\nprovoquer une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es, une atteinte \u00e0 la\nconfidentialit\u00e9 des donn\u00e9es et un contournement de la politique de\ns\u00e9curit\u00e9.\n",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Cisco Expressway Series et Cisco TelePresence VCS",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Cisco cisco-sa-expressway-overwrite-3buqW8LH du 04 avril 2023",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-overwrite-3buqW8LH"
    }
  ]
}

{
  "document": {
    "acknowledgments": [
      {
        "summary": "CVE-2022-20812 was found during internal security testing by Jason Crowder of the Cisco Advanced Security Initiatives Group (ASIG).\r\n\r\nCVE-2022-20813 was found during internal security testing by Deklan Evans of the Cisco ASIG."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "Multiple vulnerabilities in the API and in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow a remote attacker to overwrite arbitrary files or conduct null byte poisoning attacks on an affected device.\r\n\r\nNote: Cisco Expressway Series refers to the Expressway Control (Expressway-C) device and the Expressway Edge (Expressway-E) device.\r\n\r\nFor more information about these vulnerabilities, see the Details [\"#details\"] section of this advisory.\r\n\r\nCisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.\r\n\r\n",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "These vulnerabilities affect Cisco Expressway Series software and Cisco TelePresence VCS software if they are in the default configuration.\r\n\r\nFor information about which Cisco software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by these vulnerabilities.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit another vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerabilities.\r\n\r\nDetails about the vulnerabilities are as follows:\r\n\r\nCVE-2022-20812: Cisco Expressway Series and Cisco TelePresence VCS Arbitrary File Overwrite Vulnerability\r\n\r\nA vulnerability in the cluster database API of Cisco Expressway Series and Cisco TelePresence VCS could allow an authenticated, remote attacker with Administrator read-write privileges on the application to conduct absolute path traversal attacks on an affected device and overwrite files on the underlying operating system as a root user.\r\n\r\nThis vulnerability is due to insufficient input validation of user-supplied command arguments. An attacker could exploit this vulnerability by authenticating to the system as an administrative read-write user and submitting crafted input to the affected command. A successful exploit could allow the attacker to overwrite arbitrary files on the underlying operating system as the root user.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\nBug ID(s): CSCwa01085 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa01085\"]\r\nCVE ID: CVE-2022-20812\r\nSecurity Impact Rating (SIR): Critical\r\nCVSS Base Score: 9.0\r\nCVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L\r\n\r\nCVE-2022-20813: Cisco Expressway Series and Cisco TelePresence VCS Null Byte Poisoning Vulnerability\r\n\r\nA vulnerability in the certificate validation of Cisco Expressway Series and Cisco TelePresence VCS could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data.\r\n\r\nThis vulnerability is due to improper certificate validation. An attacker could exploit this vulnerability by using a man-in-the-middle technique to intercept the traffic between devices, and then using a crafted certificate to impersonate the endpoint. A successful exploit could allow the attacker to view the intercepted traffic in clear text or alter the contents of the traffic.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\nBug ID(s): CSCwa01080 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa01080\"]\r\nCVE ID: CVE-2022-20813\r\nSecurity Impact Rating (SIR): High\r\nCVSS Base Score: 7.4\r\nCVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
        "title": "Details"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address these vulnerabilities.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco has released free software updates [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu\"] that address the vulnerabilities described in this advisory. Customers with service contracts that entitle them to regular software updates should obtain security fixes through their usual update channels.\r\n\r\nCustomers 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\nThe Cisco Support and Downloads page [\"https://www.cisco.com/c/en/us/support/index.html\"] on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories 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: https://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\nIn the following table(s), the left column lists Cisco software releases. The right column indicates whether a release is affected by the vulnerabilities that are described in this advisory and the first release that includes the fix for these vulnerabilities. Customers are advised to upgrade to an appropriate fixed software release [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"] as indicated in this section.\r\n        Cisco Expressway Series and Cisco TelePresence VCS Release  First Fixed Release          Earlier than 14.0  Migrate to a fixed release.      14.0  14.31 (late Apr 2023)\r\n1. A partial fix was provided in Release 14.0.7. For complete coverage, customers should upgrade to Release 14.3 or higher.\r\nThe Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"http://www.cisco.com/web/about/security/psirt/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 PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "CVE-2022-20812 was found during internal security testing by Jason Crowder of the Cisco Advanced Security Initiatives Group (ASIG).\r\n\r\nCVE-2022-20813 was found during internal security testing by Deklan Evans of the Cisco ASIG.",
        "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": "psirt@cisco.com",
      "issuing_authority": "Cisco PSIRT",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-overwrite-3buqW8LH"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "CSCwa01085",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa01085"
      },
      {
        "category": "external",
        "summary": "CSCwa01080",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa01080"
      },
      {
        "category": "external",
        "summary": "free software updates",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu"
      },
      {
        "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\u0026nbsp;Support and Downloads page",
        "url": "https://www.cisco.com/c/en/us/support/index.html"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Security Advisories 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": "Security Vulnerability Policy",
        "url": "http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities",
    "tracking": {
      "current_release_date": "2023-04-04T20:50:42+00:00",
      "generator": {
        "date": "2024-05-10T23:16:39+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-expressway-overwrite-3buqW8LH",
      "initial_release_date": "2022-07-06T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2022-07-06T15:40:28+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        },
        {
          "date": "2023-04-04T20:50:42+00:00",
          "number": "1.1.0",
          "summary": "Updated fixed release table."
        }
      ],
      "status": "final",
      "version": "1.1.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco TelePresence Video Communication Server (VCS) Expressway",
            "product": {
              "name": "Cisco TelePresence Video Communication Server (VCS) Expressway ",
              "product_id": "CSAFPID-209614"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-20813",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCwa01080"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-209614"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-209614"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
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    },
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}

{
  "document": {
    "acknowledgments": [
      {
        "summary": "CVE-2022-20812 was found during internal security testing by Jason Crowder of the Cisco Advanced Security Initiatives Group (ASIG).\r\n\r\nCVE-2022-20813 was found during internal security testing by Deklan Evans of the Cisco ASIG."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "Multiple vulnerabilities in the API and in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow a remote attacker to overwrite arbitrary files or conduct null byte poisoning attacks on an affected device.\r\n\r\nNote: Cisco Expressway Series refers to the Expressway Control (Expressway-C) device and the Expressway Edge (Expressway-E) device.\r\n\r\nFor more information about these vulnerabilities, see the Details [\"#details\"] section of this advisory.\r\n\r\nCisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.\r\n\r\n",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "These vulnerabilities affect Cisco Expressway Series software and Cisco TelePresence VCS software if they are in the default configuration.\r\n\r\nFor information about which Cisco software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by these vulnerabilities.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit another vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerabilities.\r\n\r\nDetails about the vulnerabilities are as follows:\r\n\r\nCVE-2022-20812: Cisco Expressway Series and Cisco TelePresence VCS Arbitrary File Overwrite Vulnerability\r\n\r\nA vulnerability in the cluster database API of Cisco Expressway Series and Cisco TelePresence VCS could allow an authenticated, remote attacker with Administrator read-write privileges on the application to conduct absolute path traversal attacks on an affected device and overwrite files on the underlying operating system as a root user.\r\n\r\nThis vulnerability is due to insufficient input validation of user-supplied command arguments. An attacker could exploit this vulnerability by authenticating to the system as an administrative read-write user and submitting crafted input to the affected command. A successful exploit could allow the attacker to overwrite arbitrary files on the underlying operating system as the root user.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\nBug ID(s): CSCwa01085 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa01085\"]\r\nCVE ID: CVE-2022-20812\r\nSecurity Impact Rating (SIR): Critical\r\nCVSS Base Score: 9.0\r\nCVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L\r\n\r\nCVE-2022-20813: Cisco Expressway Series and Cisco TelePresence VCS Null Byte Poisoning Vulnerability\r\n\r\nA vulnerability in the certificate validation of Cisco Expressway Series and Cisco TelePresence VCS could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data.\r\n\r\nThis vulnerability is due to improper certificate validation. An attacker could exploit this vulnerability by using a man-in-the-middle technique to intercept the traffic between devices, and then using a crafted certificate to impersonate the endpoint. A successful exploit could allow the attacker to view the intercepted traffic in clear text or alter the contents of the traffic.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\nBug ID(s): CSCwa01080 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa01080\"]\r\nCVE ID: CVE-2022-20813\r\nSecurity Impact Rating (SIR): High\r\nCVSS Base Score: 7.4\r\nCVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
        "title": "Details"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address these vulnerabilities.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco has released free software updates [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu\"] that address the vulnerabilities described in this advisory. Customers with service contracts that entitle them to regular software updates should obtain security fixes through their usual update channels.\r\n\r\nCustomers 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\nThe Cisco Support and Downloads page [\"https://www.cisco.com/c/en/us/support/index.html\"] on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories 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: https://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\nIn the following table(s), the left column lists Cisco software releases. The right column indicates whether a release is affected by the vulnerabilities that are described in this advisory and the first release that includes the fix for these vulnerabilities. Customers are advised to upgrade to an appropriate fixed software release [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"] as indicated in this section.\r\n        Cisco Expressway Series and Cisco TelePresence VCS Release  First Fixed Release          Earlier than 14.0  Migrate to a fixed release.      14.0  14.31 (late Apr 2023)\r\n1. A partial fix was provided in Release 14.0.7. For complete coverage, customers should upgrade to Release 14.3 or higher.\r\nThe Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"http://www.cisco.com/web/about/security/psirt/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 PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "CVE-2022-20812 was found during internal security testing by Jason Crowder of the Cisco Advanced Security Initiatives Group (ASIG).\r\n\r\nCVE-2022-20813 was found during internal security testing by Deklan Evans of the Cisco ASIG.",
        "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"
      }
    ],
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        "category": "self",
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        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
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      {
        "category": "external",
        "summary": "CSCwa01085",
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        "summary": "CSCwa01080",
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        "summary": "free software updates",
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      {
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        "summary": "Cisco\u0026nbsp;Security Advisories page",
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        "summary": "Security Vulnerability Policy",
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