CNVD-2018-07639

Vulnerability from cnvd - Published: 2018-04-13
VLAI
Title
Ruby目录遍历漏洞（CNVD-2018-07639）
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。tmpdir library是其中的一个用于创建文件和目录的库。 Ruby中的tmpdir库的Dir.mktmpdir方法存在目录遍历漏洞。攻击者可借助带有‘..’序列的‘prefix’参数利用该漏洞创建任意目录或文件。
Severity
中
Patch Name
Ruby目录遍历漏洞（CNVD-2018-07639）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。tmpdir library是其中的一个用于创建文件和目录的库。 Ruby中的tmpdir库的Dir.mktmpdir方法存在目录遍历漏洞。攻击者可借助带有‘..’序列的‘prefix’参数利用该漏洞创建任意目录或文件。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/2018/03/28/unintentional-file-and-directory-creation-with-directory-traversal-cve-2018-6914/

Reference
https://nvd.nist.gov/vuln/detail/CVE-2018-6914
Impacted products
Name
['Ruby Ruby 2.6.0-preview1', 'Ruby Ruby < 2.2.10', 'Ruby Ruby 2.3.*，<2.3.7', 'Ruby Ruby 2.4.*，<2.4.4', 'Ruby Ruby 2.5.*，<2.5.1']
Show details on source website
To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "103686"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-6914"
    }
  },
  "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\u3002tmpdir library\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa\u6587\u4ef6\u548c\u76ee\u5f55\u7684\u5e93\u3002\r\n\r\nRuby\u4e2d\u7684tmpdir\u5e93\u7684Dir.mktmpdir\u65b9\u6cd5\u5b58\u5728\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u5e26\u6709\u2018..\u2019\u5e8f\u5217\u7684\u2018prefix\u2019\u53c2\u6570\u5229\u7528\u8be5\u6f0f\u6d1e\u521b\u5efa\u4efb\u610f\u76ee\u5f55\u6216\u6587\u4ef6\u3002",
  "discovererName": "ooooooo_q",
  "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/2018/03/28/unintentional-file-and-directory-creation-with-directory-traversal-cve-2018-6914/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-07639",
  "openTime": "2018-04-13",
  "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\u3002tmpdir library\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa\u6587\u4ef6\u548c\u76ee\u5f55\u7684\u5e93\u3002\r\n\r\nRuby\u4e2d\u7684tmpdir\u5e93\u7684Dir.mktmpdir\u65b9\u6cd5\u5b58\u5728\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u5e26\u6709\u2018..\u2019\u5e8f\u5217\u7684\u2018prefix\u2019\u53c2\u6570\u5229\u7528\u8be5\u6f0f\u6d1e\u521b\u5efa\u4efb\u610f\u76ee\u5f55\u6216\u6587\u4ef6\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\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\uff08CNVD-2018-07639\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Ruby Ruby 2.6.0-preview1",
      "Ruby Ruby \u003c 2.2.10",
      "Ruby Ruby 2.3.*\uff0c\u003c2.3.7",
      "Ruby Ruby 2.4.*\uff0c\u003c2.4.4",
      "Ruby Ruby 2.5.*\uff0c\u003c2.5.1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-6914",
  "serverity": "\u4e2d",
  "submitTime": "2018-04-04",
  "title": "Ruby\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\uff08CNVD-2018-07639\uff09"
}



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