GSD-2021-34418

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service.
Aliases
Aliases
CVE-2021-34418
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{
  "GSD": {
    "alias": "CVE-2021-34418",
    "description": "The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service.",
    "id": "GSD-2021-34418"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-34418"
      ],
      "details": "The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service.",
      "id": "GSD-2021-34418",
      "modified": "2023-12-13T01:23:14.147304Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "AKA": "Zoom Communications Inc",
        "ASSIGNER": "security@zoom.us",
        "DATE_PUBLIC": "2021-11-12T17:00:00.000Z",
        "ID": "CVE-2021-34418",
        "STATE": "PUBLIC",
        "TITLE": "Pre-auth Null pointer crash in on-premise web console"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Zoom On-Premise Meeting Connector",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "4.6.239.20200613"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Zoom On-Premise Meeting Connector MMR",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "4.6.239.20200613"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Zoom On-Premise Recording Connector",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "3.8.42.20200905"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Zoom On-Premise Virtual Room Connector",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "4.4.6344.20200612"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Zoom On-Premise Virtual Room Connector Load Balancer",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "2.5.5492.20200616"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Zoom Video Communications Inc"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Jeremy Brown"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Improper Input Validation"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://explore.zoom.us/en/trust/security/security-bulletin",
            "refsource": "MISC",
            "url": "https://explore.zoom.us/en/trust/security/security-bulletin"
          }
        ]
      },
      "source": {
        "discovery": "USER"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:zoom:zoom_on-premise_meeting_connector_controller:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.6.239.20200613",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:zoom:zoom_on-premise_meeting_connector_mmr:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.6.239.20200613",
                "vulnerable": true
              },
              {
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                "cpe_name": [],
                "versionEndExcluding": "3.8.42.20200905",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:zoom:zoom_on-premise_virtual_room_connector:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.4.6344.20200612",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:zoom:zoom_on-premise_virtual_room_connector_load_balancer:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.5.5492.20200616",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@zoom.us",
          "ID": "CVE-2021-34418"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-476"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://explore.zoom.us/en/trust/security/security-bulletin",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://explore.zoom.us/en/trust/security/security-bulletin"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2021-11-16T18:01Z",
      "publishedDate": "2021-11-11T23:15Z"
    }
  }
}


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  • 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.



Detection rules are retrieved from Rulezet.