Vulnerability-Lookup

CNVD-2017-31750

Vulnerability from cnvd - Published: 2017-10-27

Title

Ruby URI.decode_www_form_component方法拒绝服务漏洞

Description

Ruby是日本软件开发者松本行弘所研发的一种跨平台、面向对象的动态类型编程语言。 Ruby 1.9.2-p330之前的版本中的URI.decode_www_form_component方法存在安全漏洞。远程攻击者可借助特制的字符串利用该漏洞造成拒绝服务（资源消耗或应用程序崩溃）。

Severity

中

Patch Name

Ruby URI.decode_www_form_component方法拒绝服务漏洞的补丁

Patch Description

Ruby是日本软件开发者松本行弘所研发的一种跨平台、面向对象的动态类型编程语言。 Ruby 1.9.2-p330之前的版本中的URI.decode_www_form_component方法存在安全漏洞。远程攻击者可借助特制的字符串利用该漏洞造成拒绝服务（资源消耗或应用程序崩溃）。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://www.ruby-lang.org/en/news/2014/08/19/ruby-1-9-2-p330-released/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2014-6438

Impacted products

Name
ruby-lang ruby <1.9.2-p330

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2014-6438"
    }
  },
  "description": "Ruby\u662f\u65e5\u672c\u8f6f\u4ef6\u5f00\u53d1\u8005\u677e\u672c\u884c\u5f18\u6240\u7814\u53d1\u7684\u4e00\u79cd\u8de8\u5e73\u53f0\u3001\u9762\u5411\u5bf9\u8c61\u7684\u52a8\u6001\u7c7b\u578b\u7f16\u7a0b\u8bed\u8a00\u3002\r\n\r\nRuby 1.9.2-p330\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684URI.decode_www_form_component\u65b9\u6cd5\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5b57\u7b26\u4e32\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d44\u6e90\u6d88\u8017\u6216\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\u3002",
  "discovererName": "unknwon",
  "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://www.ruby-lang.org/en/news/2014/08/19/ruby-1-9-2-p330-released/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-31750",
  "openTime": "2017-10-27",
  "patchDescription": "Ruby\u662f\u65e5\u672c\u8f6f\u4ef6\u5f00\u53d1\u8005\u677e\u672c\u884c\u5f18\u6240\u7814\u53d1\u7684\u4e00\u79cd\u8de8\u5e73\u53f0\u3001\u9762\u5411\u5bf9\u8c61\u7684\u52a8\u6001\u7c7b\u578b\u7f16\u7a0b\u8bed\u8a00\u3002\r\n\r\nRuby 1.9.2-p330\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684URI.decode_www_form_component\u65b9\u6cd5\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5b57\u7b26\u4e32\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d44\u6e90\u6d88\u8017\u6216\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\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": "Ruby URI.decode_www_form_component\u65b9\u6cd5\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "ruby-lang ruby \u003c1.9.2-p330"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2014-6438",
  "serverity": "\u4e2d",
  "submitTime": "2017-09-07",
  "title": "Ruby URI.decode_www_form_component\u65b9\u6cd5\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2014-6438 (GCVE-0-2014-6438)

Vulnerability from cvelistv5 – Published: 2017-09-06 21:00 – Updated: 2024-08-06 12:17

Summary

The URI.decode_www_form_component method in Ruby before 1.9.2-p330 allows remote attackers to cause a denial of service (catastrophic regular expression backtracking, resource consumption, or application crash) via a crafted string.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
http://www.securitytracker.com/id/1032874	vdb-entryx_refsource_SECTRACK
https://www.ruby-lang.org/en/news/2014/08/19/ruby…	x_refsource_CONFIRM
https://github.com/ruby/www.ruby-lang.org/issues/817	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2015/07/13/6	mailing-listx_refsource_MLIST

Date Public

2014-08-19 00:00

Show details on NVD website

JSON

To clipboard

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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.

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.