cnvd - cnvd-2017-38238

CNVD-2017-38238

Vulnerability from cnvd - Published: 2017-12-27

Title

YARD任意文件读取漏洞

Description

YARD是一款Ruby编程语言的文档生成工具。该工具能够生成多种格式的文档。 YARD 0.9.11之前版本中的服务器的lib/yard/core_ext/file.rb文件存在安全漏洞，该漏洞源于程序未能阻止以‘../’序列开头的相关路径。攻击者可利用该漏洞读取任意文件。

Severity

中

Patch Name

YARD任意文件读取漏洞的补丁

Patch Description

YARD是一款Ruby编程语言的文档生成工具。该工具能够生成多种格式的文档。 YARD 0.9.11之前版本中的服务器的lib/yard/core_ext/file.rb文件存在安全漏洞，该漏洞源于程序未能阻止以‘../’序列开头的相关路径。攻击者可利用该漏洞读取任意文件。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://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4

Reference

https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4

Impacted products

Name
YARD YARD <0.9.11

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-17042"
    }
  },
  "description": "YARD\u662f\u4e00\u6b3eRuby\u7f16\u7a0b\u8bed\u8a00\u7684\u6587\u6863\u751f\u6210\u5de5\u5177\u3002\u8be5\u5de5\u5177\u80fd\u591f\u751f\u6210\u591a\u79cd\u683c\u5f0f\u7684\u6587\u6863\u3002\r\n\r\nYARD 0.9.11\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u670d\u52a1\u5668\u7684lib/yard/core_ext/file.rb\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u963b\u6b62\u4ee5\u2018../\u2019\u5e8f\u5217\u5f00\u5934\u7684\u76f8\u5173\u8def\u5f84\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u4efb\u610f\u6587\u4ef6\u3002",
  "discovererName": "lsegal",
  "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/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-38238",
  "openTime": "2017-12-27",
  "patchDescription": "YARD\u662f\u4e00\u6b3eRuby\u7f16\u7a0b\u8bed\u8a00\u7684\u6587\u6863\u751f\u6210\u5de5\u5177\u3002\u8be5\u5de5\u5177\u80fd\u591f\u751f\u6210\u591a\u79cd\u683c\u5f0f\u7684\u6587\u6863\u3002\r\n\r\nYARD 0.9.11\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u670d\u52a1\u5668\u7684lib/yard/core_ext/file.rb\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u963b\u6b62\u4ee5\u2018../\u2019\u5e8f\u5217\u5f00\u5934\u7684\u76f8\u5173\u8def\u5f84\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u4efb\u610f\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": "YARD\u4efb\u610f\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "YARD YARD \u003c0.9.11"
  },
  "referenceLink": "https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4",
  "serverity": "\u4e2d",
  "submitTime": "2017-11-30",
  "title": "YARD\u4efb\u610f\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e"
}

CVE-2017-17042 (GCVE-0-2017-17042)

Vulnerability from cvelistv5 – Published: 2017-11-28 20:00 – Updated: 2024-09-16 17:18

Summary

lib/yard/core_ext/file.rb in the server in YARD before 0.9.11 does not block relative paths with an initial ../ sequence, which allows attackers to conduct directory traversal attacks and read arbitrary files.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://github.com/lsegal/yard/commit/b0217b3e30d…

x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T20:43:59.825Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "lib/yard/core_ext/file.rb in the server in YARD before 0.9.11 does not block relative paths with an initial ../ sequence, which allows attackers to conduct directory traversal attacks and read arbitrary files."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-11-28T20:00:00Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-17042",
          "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": "lib/yard/core_ext/file.rb in the server in YARD before 0.9.11 does not block relative paths with an initial ../ sequence, which allows attackers to conduct directory traversal attacks and read arbitrary files."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4",
              "refsource": "CONFIRM",
              "url": "https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2017-17042",
    "datePublished": "2017-11-28T20:00:00Z",
    "dateReserved": "2017-11-28T00:00:00Z",
    "dateUpdated": "2024-09-16T17:18:23.027Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2017-38238

CVE-2017-17042 (GCVE-0-2017-17042)

Tags

Sightings

Nomenclature