cnvd - cnvd-2021-43378

CNVD-2021-43378

Vulnerability from cnvd - Published: 2021-06-19

Title

Cisco Meeting Server拒绝服务漏洞（CNVD-2021-43378）

Description

Cisco Meeting Server是Cisco推出的视频会议解决方案，该产品将基于场所的视频、音频及Web通信结合在一起，以满足现代工作场所的协作需求。 Cisco Meeting Server 3.1、3.1.1版的API存在拒绝服务漏洞。该漏洞源于对发送到API的请求的验证不当。攻击者可通过向API发送恶意请求利用该漏洞通话中的所有参与者断开连接。

Severity

中

Patch Name

Cisco Meeting Server拒绝服务漏洞（CNVD-2021-43378）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-meetingserver-dos-NzVWMMQT

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-1524

Impacted products

Name
['Cisco Cisco Meeting Server 3.1', 'Cisco Cisco Meeting Server 3.1.1']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1524",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1524"
    }
  },
  "description": "Cisco Meeting Server\u662fCisco\u63a8\u51fa\u7684\u89c6\u9891\u4f1a\u8bae\u89e3\u51b3\u65b9\u6848\uff0c\u8be5\u4ea7\u54c1\u5c06\u57fa\u4e8e\u573a\u6240\u7684\u89c6\u9891\u3001\u97f3\u9891\u53caWeb\u901a\u4fe1\u7ed3\u5408\u5728\u4e00\u8d77\uff0c\u4ee5\u6ee1\u8db3\u73b0\u4ee3\u5de5\u4f5c\u573a\u6240\u7684\u534f\u4f5c\u9700\u6c42\u3002\n\nCisco Meeting Server 3.1\u30013.1.1\u7248\u7684API\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u53d1\u9001\u5230API\u7684\u8bf7\u6c42\u7684\u9a8c\u8bc1\u4e0d\u5f53\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411API\u53d1\u9001\u6076\u610f\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8bdd\u4e2d\u7684\u6240\u6709\u53c2\u4e0e\u8005\u65ad\u5f00\u8fde\u63a5\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-meetingserver-dos-NzVWMMQT",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-43378",
  "openTime": "2021-06-19",
  "patchDescription": "Cisco Meeting Server\u662fCisco\u63a8\u51fa\u7684\u89c6\u9891\u4f1a\u8bae\u89e3\u51b3\u65b9\u6848\uff0c\u8be5\u4ea7\u54c1\u5c06\u57fa\u4e8e\u573a\u6240\u7684\u89c6\u9891\u3001\u97f3\u9891\u53caWeb\u901a\u4fe1\u7ed3\u5408\u5728\u4e00\u8d77\uff0c\u4ee5\u6ee1\u8db3\u73b0\u4ee3\u5de5\u4f5c\u573a\u6240\u7684\u534f\u4f5c\u9700\u6c42\u3002\r\n\r\nCisco Meeting Server 3.1\u30013.1.1\u7248\u7684API\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u53d1\u9001\u5230API\u7684\u8bf7\u6c42\u7684\u9a8c\u8bc1\u4e0d\u5f53\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411API\u53d1\u9001\u6076\u610f\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8bdd\u4e2d\u7684\u6240\u6709\u53c2\u4e0e\u8005\u65ad\u5f00\u8fde\u63a5\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Cisco Meeting Server\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-43378\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco Cisco Meeting Server 3.1",
      "Cisco Cisco Meeting Server 3.1.1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1524",
  "serverity": "\u4e2d",
  "submitTime": "2021-06-17",
  "title": "Cisco Meeting Server\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-43378\uff09"
}

CVE-2021-1524 (GCVE-0-2021-1524)

Vulnerability from cvelistv5 – Published: 2021-06-16 17:35 – Updated: 2024-11-07 22:08

Title

Cisco Meeting Server API Denial of Service Vulnerability

Summary

A vulnerability in the API of Cisco Meeting Server could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because requests that are sent to the API are not properly validated. An attacker could exploit this vulnerability by sending a malicious request to the API. A successful exploit could allow the attacker to cause all participants on a call to be disconnected, resulting in a DoS condition.

Severity ?

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-20

Assigner

cisco

References

URL

Tags

https://tools.cisco.com/security/center/content/C…

vendor-advisoryx_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Meeting Server	Affected: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:11:17.720Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20210616 Cisco Meeting Server API Denial of Service Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-meetingserver-dos-NzVWMMQT"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-1524",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-07T21:41:36.574505Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-07T22:08:52.905Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Meeting Server",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2021-06-16T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the API of Cisco Meeting Server could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because requests that are sent to the API are not properly validated. An attacker could exploit this vulnerability by sending a malicious request to the API. A successful exploit could allow the attacker to cause all participants on a call to be disconnected, resulting in a DoS condition."
        }
      ],
      "exploits": [
        {
          "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-06-16T17:35:10",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20210616 Cisco Meeting Server API Denial of Service Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-meetingserver-dos-NzVWMMQT"
        }
      ],
      "source": {
        "advisory": "cisco-sa-meetingserver-dos-NzVWMMQT",
        "defect": [
          [
            "CSCvx32184"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco Meeting Server API Denial of Service Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2021-06-16T16:00:00",
          "ID": "CVE-2021-1524",
          "STATE": "PUBLIC",
          "TITLE": "Cisco Meeting Server API Denial of Service Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco Meeting Server",
                      "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 the API of Cisco Meeting Server could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because requests that are sent to the API are not properly validated. An attacker could exploit this vulnerability by sending a malicious request to the API. A successful exploit could allow the attacker to cause all participants on a call to be disconnected, resulting in a DoS condition."
            }
          ]
        },
        "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": "4.3",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-20"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20210616 Cisco Meeting Server API Denial of Service Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-meetingserver-dos-NzVWMMQT"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-meetingserver-dos-NzVWMMQT",
          "defect": [
            [
              "CSCvx32184"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2021-1524",
    "datePublished": "2021-06-16T17:35:10.980626Z",
    "dateReserved": "2020-11-13T00:00:00",
    "dateUpdated": "2024-11-07T22:08:52.905Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2021-43378

CVE-2021-1524 (GCVE-0-2021-1524)

Tags

Sightings

Nomenclature