Vulnerability-Lookup

CNVD-2018-23633

Vulnerability from cnvd - Published: 2018-11-22

Title

Rack multipart parser拒绝服务漏洞

Description

Rack是软件开发者Christian Neukirchen所研发的一个Ruby Web服务器接口，它为Web服务器、Web框架和中间件的API进行了统一，并支持使用单一的方法调用。multipart parser是其中的一个用于处理multipart/form-data请求的解析器。 Rack 2.0.6之前版本中的multipart parser存在拒绝服务漏洞，攻击者可通过发送特制的请求利用该漏洞消耗大量CPU资源。

Severity

中

Patch Name

Rack multipart parser拒绝服务漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： http://rack.github.io/

Reference

https://groups.google.com/forum/#!msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ

Impacted products

Name
Christian Neukirchen Rack <2.0.6

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-16470"
    }
  },
  "description": "Rack\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Christian Neukirchen\u6240\u7814\u53d1\u7684\u4e00\u4e2aRuby Web\u670d\u52a1\u5668\u63a5\u53e3\uff0c\u5b83\u4e3aWeb\u670d\u52a1\u5668\u3001Web\u6846\u67b6\u548c\u4e2d\u95f4\u4ef6\u7684API\u8fdb\u884c\u4e86\u7edf\u4e00\uff0c\u5e76\u652f\u6301\u4f7f\u7528\u5355\u4e00\u7684\u65b9\u6cd5\u8c03\u7528\u3002multipart parser\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7528\u4e8e\u5904\u7406multipart/form-data\u8bf7\u6c42\u7684\u89e3\u6790\u5668\u3002\n\nRack 2.0.6\u4e4b\u524d\u7248\u672c\u4e2d\u7684multipart parser\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236\u7684\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u6d88\u8017\u5927\u91cfCPU\u8d44\u6e90\u3002",
  "discovererName": "Unknow",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttp://rack.github.io/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-23633",
  "openTime": "2018-11-22",
  "patchDescription": "Rack\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Christian Neukirchen\u6240\u7814\u53d1\u7684\u4e00\u4e2aRuby Web\u670d\u52a1\u5668\u63a5\u53e3\uff0c\u5b83\u4e3aWeb\u670d\u52a1\u5668\u3001Web\u6846\u67b6\u548c\u4e2d\u95f4\u4ef6\u7684API\u8fdb\u884c\u4e86\u7edf\u4e00\uff0c\u5e76\u652f\u6301\u4f7f\u7528\u5355\u4e00\u7684\u65b9\u6cd5\u8c03\u7528\u3002multipart parser\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7528\u4e8e\u5904\u7406multipart/form-data\u8bf7\u6c42\u7684\u89e3\u6790\u5668\u3002\r\n\r\nRack 2.0.6\u4e4b\u524d\u7248\u672c\u4e2d\u7684multipart parser\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236\u7684\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u6d88\u8017\u5927\u91cfCPU\u8d44\u6e90\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": "Rack multipart parser\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Christian Neukirchen Rack \u003c2.0.6"
  },
  "referenceLink": "https://groups.google.com/forum/#!msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ",
  "serverity": "\u4e2d",
  "submitTime": "2018-11-15",
  "title": "Rack multipart parser\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2018-16470 (GCVE-0-2018-16470)

Vulnerability from cvelistv5 – Published: 2018-11-13 23:00 – Updated: 2024-08-05 10:24

Summary

There is a possible DoS vulnerability in the multipart parser in Rack before 2.0.6. Specially crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size.

Severity

No CVSS data available.

CWE

CWE-400 - Denial of Service (CWE-400)

Assigner

hackerone mitre root

References

2 references

URL	Tags
https://groups.google.com/forum/#%21msg/rubyonrai…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:3172	vendor-advisoryx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
Rack	Rack	Affected: 2.0.6

Date Public

2018-11-05 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T10:24:32.612Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://groups.google.com/forum/#%21msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ"
          },
          {
            "name": "RHSA-2019:3172",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3172"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Rack",
          "vendor": "Rack",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.6"
            }
          ]
        }
      ],
      "datePublic": "2018-11-05T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "There is a possible DoS vulnerability in the multipart parser in Rack before 2.0.6. Specially crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "Denial of Service (CWE-400)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-10-24T22:06:22.000Z",
        "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "shortName": "hackerone"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://groups.google.com/forum/#%21msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ"
        },
        {
          "name": "RHSA-2019:3172",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3172"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "support@hackerone.com",
          "ID": "CVE-2018-16470",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Rack",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "2.0.6"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Rack"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "There is a possible DoS vulnerability in the multipart parser in Rack before 2.0.6. Specially crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Denial of Service (CWE-400)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://groups.google.com/forum/#!msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ",
              "refsource": "MISC",
              "url": "https://groups.google.com/forum/#!msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ"
            },
            {
              "name": "RHSA-2019:3172",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:3172"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2018-16470",
    "datePublished": "2018-11-13T23:00:00.000Z",
    "dateReserved": "2018-09-04T00:00:00.000Z",
    "dateUpdated": "2024-08-05T10:24:32.612Z",
    "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.

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.

Action not permitted

CNVD-2018-23633

CVE-2018-16470 (GCVE-0-2018-16470)

Tags

Sightings

Nomenclature

Related by attack behaviour