cnvd - cnvd-2018-23633

cnvd-2018-23633

Vulnerability from cnvd

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:

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。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： 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

Modified

2024-08-05 10:24

Severity ?

CWE

CWE-400 - Denial of Service ()

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.

References

▼	URL	Tags
	https://groups.google.com/forum/#%21msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ	x_refsource_MISC
	https://access.redhat.com/errata/RHSA-2019:3172	vendor-advisory, x_refsource_REDHAT

Impacted products

	Vendor	Product	Version
	Rack	Rack	Version: 2.0.6

Show details on NVD website

JSON

To clipboard

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          }
        ],
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    ],
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          "product": "Rack",
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          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3172"
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      "x_legacyV4Record": {
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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