Vulnerability-Lookup

CNVD-2021-32621

Vulnerability from cnvd - Published: 2021-05-06

Title

Unbound配置注入漏洞

Description

Unbound是一个支持验证、递归、缓存功能的DNS解析器。 Unbound 1.9.5之前版本中的create_unbound_ad_servers.sh存在配置注入漏洞。中间人攻击者可通过明文HTTP会话利用该漏洞注入配置。

Severity

中

Patch Name

Unbound配置注入漏洞的补丁

Patch Description

Unbound是一个支持验证、递归、缓存功能的DNS解析器。 Unbound 1.9.5之前版本中的create_unbound_ad_servers.sh存在配置注入漏洞。中间人攻击者可通过明文HTTP会话利用该漏洞注入配置。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://lists.nlnetlabs.nl/pipermail/unbound-users/2019-December/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-25031

Impacted products

Name
NLnet Labs Unbound <1.9.5

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-25031",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-25031"
    }
  },
  "description": "Unbound\u662f\u4e00\u4e2a\u652f\u6301\u9a8c\u8bc1\u3001\u9012\u5f52\u3001\u7f13\u5b58\u529f\u80fd\u7684DNS\u89e3\u6790\u5668\u3002\n\nUnbound 1.9.5\u4e4b\u524d\u7248\u672c\u4e2d\u7684create_unbound_ad_servers.sh\u5b58\u5728\u914d\u7f6e\u6ce8\u5165\u6f0f\u6d1e\u3002\u4e2d\u95f4\u4eba\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u660e\u6587HTTP\u4f1a\u8bdd\u5229\u7528\u8be5\u6f0f\u6d1e\u6ce8\u5165\u914d\u7f6e\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://lists.nlnetlabs.nl/pipermail/unbound-users/2019-December/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-32621",
  "openTime": "2021-05-06",
  "patchDescription": "Unbound\u662f\u4e00\u4e2a\u652f\u6301\u9a8c\u8bc1\u3001\u9012\u5f52\u3001\u7f13\u5b58\u529f\u80fd\u7684DNS\u89e3\u6790\u5668\u3002\r\n\r\nUnbound 1.9.5\u4e4b\u524d\u7248\u672c\u4e2d\u7684create_unbound_ad_servers.sh\u5b58\u5728\u914d\u7f6e\u6ce8\u5165\u6f0f\u6d1e\u3002\u4e2d\u95f4\u4eba\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u660e\u6587HTTP\u4f1a\u8bdd\u5229\u7528\u8be5\u6f0f\u6d1e\u6ce8\u5165\u914d\u7f6e\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": "Unbound\u914d\u7f6e\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "NLnet Labs Unbound \u003c1.9.5"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-25031",
  "serverity": "\u4e2d",
  "submitTime": "2021-04-28",
  "title": "Unbound\u914d\u7f6e\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2019-25031 (GCVE-0-2019-25031)

Vulnerability from cvelistv5 – Published: 2021-04-27 05:18 – Updated: 2024-08-05 03:00 Disputed

Summary

Unbound before 1.9.5 allows configuration injection in create_unbound_ad_servers.sh upon a successful man-in-the-middle attack against a cleartext HTTP session. NOTE: The vendor does not consider this a vulnerability of the Unbound software. create_unbound_ad_servers.sh is a contributed script from the community that facilitates automatic configuration creation. It is not part of the Unbound installation

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

3 references

URL	Tags
https://ostif.org/our-audit-of-unbound-dns-by-x41…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2021050…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T03:00:18.956Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/"
          },
          {
            "name": "[debian-lts-announce] 20210506 [SECURITY] [DLA 2652-1] unbound1.9 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210507-0007/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Unbound before 1.9.5 allows configuration injection in create_unbound_ad_servers.sh upon a successful man-in-the-middle attack against a cleartext HTTP session. NOTE: The vendor does not consider this a vulnerability of the Unbound software. create_unbound_ad_servers.sh is a contributed script from the community that facilitates automatic configuration creation. It is not part of the Unbound installation"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-06-11T21:17:12.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/"
        },
        {
          "name": "[debian-lts-announce] 20210506 [SECURITY] [DLA 2652-1] unbound1.9 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20210507-0007/"
        }
      ],
      "tags": [
        "disputed"
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-25031",
          "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",
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        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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                  "value": "n/a"
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/",
              "refsource": "MISC",
              "url": "https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/"
            },
            {
              "name": "[debian-lts-announce] 20210506 [SECURITY] [DLA 2652-1] unbound1.9 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20210507-0007/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20210507-0007/"
            }
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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  },
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}

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.

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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Action not permitted

CNVD-2021-32621

CVE-2019-25031 (GCVE-0-2019-25031)

Tags

Sightings

Nomenclature

Related by attack behaviour