GSD-2017-17042

Vulnerability from gsd - Updated: 2017-11-28 00:00
Details
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.
Aliases
Aliases
CVE-2017-17042
To clipboard 

{
  "GSD": {
    "alias": "CVE-2017-17042",
    "description": "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.",
    "id": "GSD-2017-17042",
    "references": [
      "https://www.suse.com/security/cve/CVE-2017-17042.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "yard",
            "purl": "pkg:gem/yard"
          }
        }
      ],
      "aliases": [
        "CVE-2017-17042",
        "GHSA-gj4p-3wh3-2rmf"
      ],
      "details": "lib/yard/core_ext/file.rb in the server in YARD before 0.9.11 does not block\nrelative paths with an initial ../ sequence, which allows attackers to conduct\ndirectory traversal attacks and read arbitrary files.\n",
      "id": "GSD-2017-17042",
      "modified": "2017-11-28T00:00:00.000Z",
      "published": "2017-11-28T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-17042"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 5.0,
          "type": "CVSS_V2"
        },
        {
          "score": 7.5,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Potential arbitrary file read vulnerability in yard server"
    }
  },
  "namespaces": {
    "cve.org": {
      "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"
            }
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      "data_type": "CVE",
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      "description": {
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            "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."
          }
        ]
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                "lang": "eng",
                "value": "n/a"
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4",
            "refsource": "CONFIRM",
            "url": "https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2017-17042",
      "cvss_v2": 5.0,
      "cvss_v3": 7.5,
      "date": "2017-11-28",
      "description": "lib/yard/core_ext/file.rb in the server in YARD before 0.9.11 does not block\nrelative paths with an initial ../ sequence, which allows attackers to conduct\ndirectory traversal attacks and read arbitrary files.\n",
      "gem": "yard",
      "ghsa": "gj4p-3wh3-2rmf",
      "patched_versions": [
        "\u003e= 0.9.11"
      ],
      "title": "Potential arbitrary file read vulnerability in yard server",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-17042"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c0.9.11",
          "affected_versions": "All versions before 0.9.11",
          "credit": "Loren Segal",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-22",
            "CWE-937"
          ],
          "date": "2017-12-20",
          "description": "`lib/yard/core_ext/file.rb` does not block relative paths with an initial `../` sequence, which allows attackers to conduct directory traversal attacks and read arbitrary files.",
          "fixed_versions": [
            "0.9.11"
          ],
          "identifier": "CVE-2017-17042",
          "identifiers": [
            "CVE-2017-17042"
          ],
          "package_slug": "gem/yard",
          "pubdate": "2017-11-28",
          "solution": "Upgrade to 0.9.11 or above",
          "title": "Directory traversal",
          "urls": [
            "https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4",
            "https://nvd.nist.gov/vuln/detail/CVE-2017-17042"
          ],
          "uuid": "d880c991-d2e7-44b7-8e57-6e41eb18e8e0"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:yardoc:yard:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.9.11",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-17042"
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        "description": {
          "description_data": [
            {
              "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-22"
                }
              ]
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4",
              "refsource": "CONFIRM",
              "tags": [
                "Patch"
              ],
              "url": "https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2017-12-20T20:58Z",
      "publishedDate": "2017-11-28T20:29Z"
    }
  }
}


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