cisco-sa-vsoln-arbfile-gtseyxns
Vulnerability from csaf_cisco
Published
2020-11-04 16:00
Modified
2020-11-04 16:00
Summary
Cisco SD-WAN Software Arbitrary File Creation Vulnerability

Notes

Summary
A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to create or overwrite arbitrary files on an affected device, which could result in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation for specific commands. An attacker could exploit this vulnerability by including crafted arguments to those specific commands. A successful exploit could allow the attacker to create or overwrite arbitrary files on the affected device, which could result in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Vulnerable Products
This vulnerability affects the following Cisco products if they are running a vulnerable release of Cisco SD-WAN Software: SD-WAN vBond Orchestrator Software SD-WAN vEdge Cloud Routers SD-WAN vEdge Routers SD-WAN vManage Software SD-WAN vSmart Controller Software For information about which Cisco software releases are vulnerable, see the Fixed Software ["#fs"] section of this advisory.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products ["#vp"] section of this advisory are known to be affected by this vulnerability. Cisco has confirmed that this vulnerability does not affect Cisco IOS XE SD-WAN Software.
Workarounds
There are no workarounds that address this vulnerability.
Fixed Software
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: https://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"] Additionally, 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. When 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. In 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. Customers Without Service Contracts Customers 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"] Customers 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. Fixed Releases Customers are advised to upgrade to an appropriate fixed software release as indicated in the following table(s). To ensure a complete upgrade solution, consider that this advisory is part of a collection that includes the following advisories: cisco-sa-vepegr-4xynYLUj ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepegr-4xynYLUj"]: Cisco SD-WAN Software Privilege Escalation Vulnerability cisco-sa-vepescm-BjgQm4vJ ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepescm-BjgQm4vJ"]: Cisco SD-WAN Software Privilege Escalation Vulnerability cisco-sa-vepeshlg-tJghOQcA ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepeshlg-tJghOQcA"]: Cisco SD-WAN Software Privilege Escalation Vulnerability cisco-sa-vepestd-8C3J9Vc ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepestd-8C3J9Vc"]: Cisco SD-WAN Software Privilege Escalation Vulnerability cisco-sa-vman-traversal-hQh24tmk ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vman-traversal-hQh24tmk"]: Cisco SD-WAN vManage Software Directory Traversal Vulnerability cisco-sa-vmanage-escalation-Jhqs5Skf ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-escalation-Jhqs5Skf"]: Cisco SD-WAN vManage Software Privilege Escalation Vulnerability cisco-sa-vsoln-arbfile-gtsEYxns ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vsoln-arbfile-gtsEYxns"]: Cisco SD-WAN Software Arbitrary File Creation Vulnerability Cisco SD-WAN Software Release First Fixed Release for this Vulnerability First Fixed Release for All Vulnerabilities Described in the Collection of Advisories Earlier than 18.3 Migrate to a fixed release. Migrate to a fixed release. 18.3 Migrate to a fixed release. Migrate to a fixed release. 18.4 Migrate to a fixed release. Migrate to a fixed release. 19.2 Migrate to a fixed release. Migrate to a fixed release. 19.3 Migrate to a fixed release. Migrate to a fixed release. 20.1 20.1.2 20.1.2 20.3 20.3.1 Migrate to a fixed release.
Vulnerability Policy
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.
Exploitation and Public Announcements
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.
Source
This vulnerability was found during internal security testing.
Legal Disclaimer
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. A 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.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "summary": "This vulnerability was found during internal security testing."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to create or overwrite arbitrary files on an affected device, which could result in a denial of service (DoS) condition.\r\n\r\nThe vulnerability is due to insufficient input validation for specific commands. An attacker could exploit this vulnerability by including crafted arguments to those specific commands. A successful exploit could allow the attacker to create or overwrite arbitrary files on the affected device, which could result in a DoS condition.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\n",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability affects the following Cisco products if they are running a vulnerable release of Cisco SD-WAN Software:\r\n\r\nSD-WAN vBond Orchestrator Software\r\nSD-WAN vEdge Cloud Routers\r\nSD-WAN vEdge Routers\r\nSD-WAN vManage Software\r\nSD-WAN vSmart Controller Software\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 this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect Cisco IOS XE SD-WAN Software.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.",
        "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 [\"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\nCustomers are advised to upgrade to an appropriate fixed software release as indicated in the following table(s). To ensure a complete upgrade solution, consider that this advisory is part of a collection that includes the following advisories:\r\n\r\ncisco-sa-vepegr-4xynYLUj [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepegr-4xynYLUj\"]: Cisco SD-WAN Software Privilege Escalation Vulnerability\r\ncisco-sa-vepescm-BjgQm4vJ [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepescm-BjgQm4vJ\"]: Cisco SD-WAN Software Privilege Escalation Vulnerability\r\ncisco-sa-vepeshlg-tJghOQcA [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepeshlg-tJghOQcA\"]: Cisco SD-WAN Software Privilege Escalation Vulnerability\r\ncisco-sa-vepestd-8C3J9Vc [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepestd-8C3J9Vc\"]: Cisco SD-WAN Software Privilege Escalation Vulnerability\r\ncisco-sa-vman-traversal-hQh24tmk [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vman-traversal-hQh24tmk\"]: Cisco SD-WAN vManage Software Directory Traversal Vulnerability\r\ncisco-sa-vmanage-escalation-Jhqs5Skf [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-escalation-Jhqs5Skf\"]: Cisco SD-WAN vManage Software Privilege Escalation Vulnerability\r\ncisco-sa-vsoln-arbfile-gtsEYxns [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vsoln-arbfile-gtsEYxns\"]: Cisco SD-WAN Software Arbitrary File Creation Vulnerability\r\n\r\n     Cisco SD-WAN Software Release First Fixed Release for this Vulnerability First Fixed Release for All Vulnerabilities Described in the Collection of Advisories     Earlier than 18.3\r\n Migrate to a fixed release. Migrate to a fixed release.   18.3 Migrate to a fixed release. Migrate to a fixed release.   18.4 Migrate to a fixed release. Migrate to a fixed release.   19.2 Migrate to a fixed release. Migrate to a fixed release.   19.3 Migrate to a fixed release. Migrate to a fixed release.   20.1 20.1.2 20.1.2   20.3 20.3.1 Migrate to a fixed release.",
        "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": "This vulnerability was found during internal security testing.",
        "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 SD-WAN Software Arbitrary File Creation Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vsoln-arbfile-gtsEYxns"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "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": "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": "cisco-sa-vepegr-4xynYLUj",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepegr-4xynYLUj"
      },
      {
        "category": "external",
        "summary": "cisco-sa-vepescm-BjgQm4vJ",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepescm-BjgQm4vJ"
      },
      {
        "category": "external",
        "summary": "cisco-sa-vepeshlg-tJghOQcA",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepeshlg-tJghOQcA"
      },
      {
        "category": "external",
        "summary": "cisco-sa-vepestd-8C3J9Vc",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepestd-8C3J9Vc"
      },
      {
        "category": "external",
        "summary": "cisco-sa-vman-traversal-hQh24tmk",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vman-traversal-hQh24tmk"
      },
      {
        "category": "external",
        "summary": "cisco-sa-vmanage-escalation-Jhqs5Skf",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-escalation-Jhqs5Skf"
      }
    ],
    "title": "Cisco SD-WAN Software Arbitrary File Creation Vulnerability",
    "tracking": {
      "current_release_date": "2020-11-04T16:00:00+00:00",
      "generator": {
        "date": "2024-05-10T22:55:59+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-vsoln-arbfile-gtsEYxns",
      "initial_release_date": "2020-11-04T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2020-11-04T15:21:30+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco Catalyst SD-WAN Manager",
            "product": {
              "name": "Cisco Catalyst SD-WAN Manager ",
              "product_id": "CSAFPID-271450"
            }
          },
          {
            "category": "product_family",
            "name": "Cisco SD-WAN vEdge Router",
            "product": {
              "name": "Cisco SD-WAN vEdge Router ",
              "product_id": "CSAFPID-278041"
            }
          },
          {
            "category": "product_family",
            "name": "Cisco SD-WAN vEdge Cloud",
            "product": {
              "name": "Cisco SD-WAN vEdge Cloud ",
              "product_id": "CSAFPID-278078"
            }
          },
          {
            "category": "product_family",
            "name": "Cisco SD-WAN vContainer",
            "product": {
              "name": "Cisco SD-WAN vContainer ",
              "product_id": "CSAFPID-278124"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-26071",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvv09807"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-278041",
          "CSAFPID-278124",
          "CSAFPID-271450",
          "CSAFPID-278078"
        ]
      },
      "release_date": "2020-11-04T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-278124",
            "CSAFPID-271450",
            "CSAFPID-278078",
            "CSAFPID-278041"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-278041",
            "CSAFPID-278124",
            "CSAFPID-271450",
            "CSAFPID-278078"
          ]
        }
      ],
      "title": "Cisco SD-WAN vEdge Arbitrary File Creation Vulnerability"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.