CVE-2020-3440 (GCVE-0-2020-3440)

Vulnerability from cvelistv5 – Published: 2020-08-26 16:16 – Updated: 2024-11-13 18:11
VLAI
Title
Cisco Webex Meetings Desktop App for Windows Arbitrary File Overwrite Vulnerability
Summary
A vulnerability in Cisco Webex Meetings Desktop App for Windows could allow an unauthenticated, remote attacker to overwrite arbitrary files on an end-user system. The vulnerability is due to improper validation of URL parameters that are sent from a website to the affected application. An attacker could exploit this vulnerability by persuading a user to follow a URL to a website that is designed to submit crafted input to the affected application. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system, possibly corrupting or deleting critical system files.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-13 17:24 UTC
CWE
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Vendor Product Version CPE status
Cisco Cisco Webex Meetings Affected: n/a
guessed Create a notification for this product.
Date Public
2020-08-19 00:00
Show details on NVD website

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            "advisory": "cisco-sa-webex-desktop-app-OVSfpVMj",
            "defect": [
              [
                "CSCvt80020"
              ]
            ],
            "discovery": "INTERNAL"
          },
          "title": "Cisco Webex Meetings Desktop App for Windows Arbitrary File Overwrite Vulnerability",
          "x_legacyV4Record": {
            "CVE_data_meta": {
              "ASSIGNER": "psirt@cisco.com",
              "DATE_PUBLIC": "2020-08-19T16:00:00",
              "ID": "CVE-2020-3440",
              "STATE": "PUBLIC",
              "TITLE": "Cisco Webex Meetings Desktop App for Windows Arbitrary File Overwrite Vulnerability"
            },
            "affects": {
              "vendor": {
                "vendor_data": [
                  {
                    "product": {
                      "product_data": [
                        {
                          "product_name": "Cisco Webex Meetings",
                          "version": {
                            "version_data": [
                              {
                                "version_value": "n/a"
                              }
                            ]
                          }
                        }
                      ]
                    },
                    "vendor_name": "Cisco"
                  }
                ]
              }
            },
            "data_format": "MITRE",
            "data_type": "CVE",
            "data_version": "4.0",
            "description": {
              "description_data": [
                {
                  "lang": "eng",
                  "value": "A vulnerability in Cisco Webex Meetings Desktop App for Windows could allow an unauthenticated, remote attacker to overwrite arbitrary files on an end-user system. The vulnerability is due to improper validation of URL parameters that are sent from a website to the affected application. An attacker could exploit this vulnerability by persuading a user to follow a URL to a website that is designed to submit crafted input to the affected application. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system, possibly corrupting or deleting critical system files."
                }
              ]
            },
            "exploit": [
              {
                "lang": "en",
                "value": "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."
              }
            ],
            "impact": {
              "cvss": {
                "baseScore": "6.5",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                "version": "3.0"
              }
            },
            "problemtype": {
              "problemtype_data": [
                {
                  "description": [
                    {
                      "lang": "eng",
                      "value": "CWE-22"
                    }
                  ]
                }
              ]
            },
            "references": {
              "reference_data": [
                {
                  "name": "20200819 Cisco Webex Meetings Desktop App for Windows Arbitrary File Overwrite Vulnerability",
                  "refsource": "CISCO",
                  "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-desktop-app-OVSfpVMj"
                }
              ]
            },
            "source": {
              "advisory": "cisco-sa-webex-desktop-app-OVSfpVMj",
              "defect": [
                [
                  "CSCvt80020"
                ]
              ],
              "discovery": "INTERNAL"
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "assignerShortName": "cisco",
        "cveId": "CVE-2020-3440",
        "datePublished": "2020-08-26T16:16:29.673Z",
        "dateReserved": "2019-12-12T00:00:00.000Z",
        "dateUpdated": "2024-11-13T18:11:22.481Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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