Vulnerability-Lookup

CNVD-2021-25698

Vulnerability from cnvd - Published: 2021-04-08

Title

Caddy授权问题漏洞

Description

Caddy是一款开源、跨平台的HTTP/Web服务器。 Caddy 0.10.13之前版本中存在安全漏洞，该漏洞源于程序未正确处理TLS客户端身份验证。攻击者可利用该漏洞绕过身份验证。

Severity

高

Patch Name

Caddy授权问题漏洞的补丁

Patch Description

Caddy是一款开源、跨平台的HTTP/Web服务器。 Caddy 0.10.13之前版本中存在安全漏洞，该漏洞源于程序未正确处理TLS客户端身份验证。攻击者可利用该漏洞绕过身份验证。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/caddyserver/caddy/releases/tag/v0.10.13

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-21246

Impacted products

Name
caddyserver Caddy <0.10.13

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-21246"
    }
  },
  "description": "Caddy\u662f\u4e00\u6b3e\u5f00\u6e90\u3001\u8de8\u5e73\u53f0\u7684HTTP/Web\u670d\u52a1\u5668\u3002 \n\nCaddy 0.10.13\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u6b63\u786e\u5904\u7406TLS\u5ba2\u6237\u7aef\u8eab\u4efd\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/caddyserver/caddy/releases/tag/v0.10.13",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-25698",
  "openTime": "2021-04-08",
  "patchDescription": "Caddy\u662f\u4e00\u6b3e\u5f00\u6e90\u3001\u8de8\u5e73\u53f0\u7684HTTP/Web\u670d\u52a1\u5668\u3002 \r\n\r\nCaddy 0.10.13\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u6b63\u786e\u5904\u7406TLS\u5ba2\u6237\u7aef\u8eab\u4efd\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\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": "Caddy\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "caddyserver Caddy \u003c0.10.13"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-21246",
  "serverity": "\u9ad8",
  "submitTime": "2020-06-16",
  "title": "Caddy\u6388\u6743\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2018-21246 (GCVE-0-2018-21246)

Vulnerability from cvelistv5 – Published: 2020-06-15 16:50 – Updated: 2024-08-05 12:26

Summary

Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/caddyserver/caddy/releases/tag…	x_refsource_MISC
https://bugs.gentoo.org/715214	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T12:26:39.466Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/caddyserver/caddy/releases/tag/v0.10.13"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.gentoo.org/715214"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode."
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-06-15T16:50:25.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/caddyserver/caddy/releases/tag/v0.10.13"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugs.gentoo.org/715214"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-21246",
          "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": "Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/caddyserver/caddy/releases/tag/v0.10.13",
              "refsource": "MISC",
              "url": "https://github.com/caddyserver/caddy/releases/tag/v0.10.13"
            },
            {
              "name": "https://bugs.gentoo.org/715214",
              "refsource": "MISC",
              "url": "https://bugs.gentoo.org/715214"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-21246",
    "datePublished": "2020-06-15T16:50:25.000Z",
    "dateReserved": "2020-06-15T00:00:00.000Z",
    "dateUpdated": "2024-08-05T12:26:39.466Z",
    "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.