Vulnerability-Lookup

CNVD-2020-35383

Vulnerability from cnvd - Published: 2020-06-30

Title

Network Time Protocol输入验证错误漏洞

Description

Network Time Protocol（NTP,网络时间协议）是一种以数据包交换把两台电脑的时钟同步化的网络协议。 NTP中的ntpd存在安全漏洞。远程攻击者可利用该漏洞使广播客户端无法与广播NTP服务器同步时钟。

Severity

中

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法：

http://www.ntp.org/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-8956

Impacted products

Name
['Ntp Ntp 4.2.8p11', 'Ntp Ntp 4.2.8p10', 'Ntp Ntp 4.2.8p12', 'Ntp Ntp 4.2.8p13']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-8956"
    }
  },
  "description": "Network Time Protocol\uff08NTP,\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff09\u662f\u4e00\u79cd\u4ee5\u6570\u636e\u5305\u4ea4\u6362\u628a\u4e24\u53f0\u7535\u8111\u7684\u65f6\u949f\u540c\u6b65\u5316\u7684\u7f51\u7edc\u534f\u8bae\u3002\n\nNTP\u4e2d\u7684ntpd\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u5e7f\u64ad\u5ba2\u6237\u7aef\u65e0\u6cd5\u4e0e\u5e7f\u64adNTP\u670d\u52a1\u5668\u540c\u6b65\u65f6\u949f\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\n\r\nhttp://www.ntp.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-35383",
  "openTime": "2020-06-30",
  "products": {
    "product": [
      "Ntp Ntp 4.2.8p11",
      "Ntp Ntp 4.2.8p10",
      "Ntp Ntp 4.2.8p12",
      "Ntp Ntp 4.2.8p13"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-8956",
  "serverity": "\u4e2d",
  "submitTime": "2020-05-07",
  "title": "Network Time Protocol\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2018-8956 (GCVE-0-2018-8956)

Vulnerability from cvelistv5 – Published: 2020-05-06 18:03 – Updated: 2024-08-05 07:10

Summary

ntpd in ntp 4.2.8p10, 4.2.8p11, 4.2.8p12 and 4.2.8p13 allow remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via soofed mode 3 and mode 5 packets. The attacker must either be a part of the same broadcast network or control a slave in that broadcast network that can capture certain required packets on the attacker's behalf and send them to the attacker.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

7 references

URL	Tags
http://www.ntp.org/	x_refsource_MISC
https://tools.ietf.org/html/rfc5905	x_refsource_MISC
https://nikhiltripathi.in/NTP_attack.pdf	x_refsource_MISC
https://arxiv.org/abs/2005.01783	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2020051…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T07:10:47.326Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.ntp.org/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://tools.ietf.org/html/rfc5905"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://nikhiltripathi.in/NTP_attack.pdf"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://arxiv.org/abs/2005.01783"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20200518-0006/"
          },
          {
            "name": "openSUSE-SU-2020:0934",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html"
          },
          {
            "name": "openSUSE-SU-2020:1007",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ntpd in ntp 4.2.8p10, 4.2.8p11, 4.2.8p12 and 4.2.8p13 allow remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via soofed mode 3 and mode 5 packets. The attacker must either be a part of the same broadcast network or control a slave in that broadcast network that can capture certain required packets on the attacker\u0027s behalf and send them to the attacker."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-07-19T14:06:04.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://www.ntp.org/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://tools.ietf.org/html/rfc5905"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://nikhiltripathi.in/NTP_attack.pdf"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://arxiv.org/abs/2005.01783"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20200518-0006/"
        },
        {
          "name": "openSUSE-SU-2020:0934",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html"
        },
        {
          "name": "openSUSE-SU-2020:1007",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-8956",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "ntpd in ntp 4.2.8p10, 4.2.8p11, 4.2.8p12 and 4.2.8p13 allow remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via soofed mode 3 and mode 5 packets. The attacker must either be a part of the same broadcast network or control a slave in that broadcast network that can capture certain required packets on the attacker\u0027s behalf and send them to the attacker."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "http://www.ntp.org/",
              "refsource": "MISC",
              "url": "http://www.ntp.org/"
            },
            {
              "name": "https://tools.ietf.org/html/rfc5905",
              "refsource": "MISC",
              "url": "https://tools.ietf.org/html/rfc5905"
            },
            {
              "name": "https://nikhiltripathi.in/NTP_attack.pdf",
              "refsource": "MISC",
              "url": "https://nikhiltripathi.in/NTP_attack.pdf"
            },
            {
              "name": "https://arxiv.org/abs/2005.01783",
              "refsource": "MISC",
              "url": "https://arxiv.org/abs/2005.01783"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20200518-0006/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20200518-0006/"
            },
            {
              "name": "openSUSE-SU-2020:0934",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html"
            },
            {
              "name": "openSUSE-SU-2020:1007",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-8956",
    "datePublished": "2020-05-06T18:03:41.000Z",
    "dateReserved": "2018-03-23T00:00:00.000Z",
    "dateUpdated": "2024-08-05T07:10:47.326Z",
    "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.

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.