Vulnerability-Lookup

CNVD-2017-20383

Vulnerability from cnvd - Published: 2017-08-11

Title

Cisco Meeting Server拒绝服务漏洞（CNVD-2017-20383）

Description

Cisco Meeting Server（前称Acano Conferencing Server，CMS）是美国思科（Cisco）公司的一套包含音频、视频的会议服务器软件。 CMS中的H.264协议的实现存在拒绝服务漏洞，该漏洞源于程序未能正确验证Fragmentation Unit (FU-A)协议数据包。远程攻击者可利用该漏洞造成拒绝服务（CMS媒体进程崩溃）。

Severity

中

Patch Name

Cisco Meeting Server拒绝服务漏洞（CNVD-2017-20383）的补丁

Patch Description

Formal description

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ms

Reference

http://securitytracker.com/id/1039058

Impacted products

Name
Cisco Meeting Server 2.1.4

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "100111"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-6763",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6763"
    }
  },
  "description": "Cisco Meeting Server\uff08\u524d\u79f0Acano Conferencing Server\uff0cCMS\uff09\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u5305\u542b\u97f3\u9891\u3001\u89c6\u9891\u7684\u4f1a\u8bae\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\r\n\r\nCMS\u4e2d\u7684H.264\u534f\u8bae\u7684\u5b9e\u73b0\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u9a8c\u8bc1Fragmentation Unit (FU-A)\u534f\u8bae\u6570\u636e\u5305\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08CMS\u5a92\u4f53\u8fdb\u7a0b\u5d29\u6e83\uff09\u3002",
  "discovererName": "Cisco",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5:\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ms",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-20383",
  "openTime": "2017-08-11",
  "patchDescription": "Cisco Meeting Server\uff08\u524d\u79f0Acano Conferencing Server\uff0cCMS\uff09\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u5305\u542b\u97f3\u9891\u3001\u89c6\u9891\u7684\u4f1a\u8bae\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\r\n\r\nCMS\u4e2d\u7684H.264\u534f\u8bae\u7684\u5b9e\u73b0\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u9a8c\u8bc1Fragmentation Unit (FU-A)\u534f\u8bae\u6570\u636e\u5305\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08CMS\u5a92\u4f53\u8fdb\u7a0b\u5d29\u6e83\uff09\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-2017-20383\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Meeting Server 2.1.4"
  },
  "referenceLink": "http://securitytracker.com/id/1039058",
  "serverity": "\u4e2d",
  "submitTime": "2017-08-04",
  "title": "Cisco Meeting Server\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-20383\uff09"
}

CVE-2017-6763 (GCVE-0-2017-6763)

Vulnerability from cvelistv5 – Published: 2017-08-07 06:00 – Updated: 2024-08-05 15:41

Summary

A vulnerability in the implementation of the H.264 protocol in Cisco Meeting Server (CMS) 2.1.4 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability exists because the affected application does not properly validate Fragmentation Unit (FU-A) protocol packets. An attacker could exploit this vulnerability by sending a crafted H.264 FU-A packet through the affected application. A successful exploit could allow the attacker to cause a DoS condition on the affected system due to an unexpected restart of the CMS media process on the system. Although the CMS platform continues to operate and only the single, affected CMS media process is restarted, a brief interruption of media traffic for certain users could occur. Cisco Bug IDs: CSCve10131.

Severity

No CVSS data available.

CWE

CWE-20

Assigner

cisco mitre root

References

4 references

URL	Tags
https://quickview.cloudapps.cisco.com/quickview/b…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/100111	vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1039058	vdb-entryx_refsource_SECTRACK
https://tools.cisco.com/security/center/content/C…	x_refsource_CONFIRM

Impacted products

1 product

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

Date Public

2017-08-07 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T15:41:17.131Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCve10131"
          },
          {
            "name": "100111",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/100111"
          },
          {
            "name": "1039058",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1039058"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ms"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Meeting Server",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Cisco Meeting Server"
            }
          ]
        }
      ],
      "datePublic": "2017-08-07T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the implementation of the H.264 protocol in Cisco Meeting Server (CMS) 2.1.4 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability exists because the affected application does not properly validate Fragmentation Unit (FU-A) protocol packets. An attacker could exploit this vulnerability by sending a crafted H.264 FU-A packet through the affected application. A successful exploit could allow the attacker to cause a DoS condition on the affected system due to an unexpected restart of the CMS media process on the system. Although the CMS platform continues to operate and only the single, affected CMS media process is restarted, a brief interruption of media traffic for certain users could occur. Cisco Bug IDs: CSCve10131."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "CWE-20",
              "lang": "en",
              "type": "CWE"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2017-08-07T09:57:02.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCve10131"
        },
        {
          "name": "100111",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/100111"
        },
        {
          "name": "1039058",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1039058"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ms"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "ID": "CVE-2017-6763",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco Meeting Server",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Cisco Meeting Server"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
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        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-20"
                }
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCve10131",
              "refsource": "CONFIRM",
              "url": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCve10131"
            },
            {
              "name": "100111",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/100111"
            },
            {
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              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1039058"
            },
            {
              "name": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ms",
              "refsource": "CONFIRM",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ms"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2017-6763",
    "datePublished": "2017-08-07T06:00:00.000Z",
    "dateReserved": "2017-03-09T00:00:00.000Z",
    "dateUpdated": "2024-08-05T15:41:17.131Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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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.

Action not permitted

CNVD-2017-20383

CVE-2017-6763 (GCVE-0-2017-6763)

Tags

Sightings

Nomenclature

Related by attack behaviour