GSD-2018-17567

Vulnerability from gsd - Updated: 2018-09-28 00:00
Details
Jekyll through 3.6.2, 3.7.x through 3.7.3, and 3.8.x through 3.8.3 allows attackers to access arbitrary files by specifying a symlink in the "include" key in the "_config.yml" file.
Aliases
Aliases
CVE-2018-17567
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{
  "GSD": {
    "alias": "CVE-2018-17567",
    "description": "Jekyll through 3.6.2, 3.7.x through 3.7.3, and 3.8.x through 3.8.3 allows attackers to access arbitrary files by specifying a symlink in the \"include\" key in the \"_config.yml\" file.",
    "id": "GSD-2018-17567"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "jekyll",
            "purl": "pkg:gem/jekyll"
          }
        }
      ],
      "aliases": [
        "CVE-2018-17567",
        "GHSA-4xjh-m3qx-49wc"
      ],
      "details": "Jekyll through 3.6.2, 3.7.x through 3.7.3, and 3.8.x through 3.8.3 allows attackers to access arbitrary files by specifying a symlink in the \"include\" key in the \"_config.yml\" file.",
      "id": "GSD-2018-17567",
      "modified": "2018-09-28T00:00:00.000Z",
      "published": "2018-09-28T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://jekyllrb.com/news/2018/09/19/security-fixes-for-3-6-3-7-3-8/"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 7.5,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Jekyll _config.yml privilege escalation"
    }
  },
  "namespaces": {
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        "ID": "CVE-2018-17567",
        "STATE": "PUBLIC"
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          "vendor_data": [
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              "product": {
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                    "version": {
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                          "version_value": "n/a"
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      "data_version": "4.0",
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/jekyll/jekyll/pull/7224",
            "refsource": "CONFIRM",
            "url": "https://github.com/jekyll/jekyll/pull/7224"
          },
          {
            "name": "https://jekyllrb.com/news/2018/09/19/security-fixes-for-3-6-3-7-3-8/",
            "refsource": "CONFIRM",
            "url": "https://jekyllrb.com/news/2018/09/19/security-fixes-for-3-6-3-7-3-8/"
          },
          {
            "name": "[accumulo-commits] 20190424 [accumulo-website] branch master updated: Update Jekyll (CVE-2018-17567)",
            "refsource": "MLIST",
            "url": "https://lists.apache.org/thread.html/71da391f584b2fb301d2df0e491b279d87287e2fb4b11309f04ad984@%3Ccommits.accumulo.apache.org%3E"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2018-17567",
      "cvss_v3": 7.5,
      "date": "2018-09-28",
      "description": "Jekyll through 3.6.2, 3.7.x through 3.7.3, and 3.8.x through 3.8.3 allows attackers to access arbitrary files by specifying a symlink in the \"include\" key in the \"_config.yml\" file.",
      "gem": "jekyll",
      "ghsa": "4xjh-m3qx-49wc",
      "patched_versions": [
        "~\u003e 3.6.3",
        "~\u003e 3.7.4",
        "\u003e= 3.8.4"
      ],
      "title": "Jekyll _config.yml privilege escalation",
      "url": "https://jekyllrb.com/news/2018/09/19/security-fixes-for-3-6-3-7-3-8/"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c=3.6.2||\u003e=3.7.0 \u003c=3.7.3||\u003e=3.8.0 \u003c=3.8.3",
          "affected_versions": "All versions up to 3.6.2, all versions starting from 3.7.0 up to 3.7.3, all versions starting from 3.8.0 up to 3.8.3",
          "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-59",
            "CWE-937"
          ],
          "date": "2019-04-26",
          "description": "Jekyll allows attackers to access arbitrary files by specifying a symlink in the `include` key in the `_config.yml` file.",
          "fixed_versions": [
            "3.6.3",
            "3.7.4",
            "3.8.4"
          ],
          "identifier": "CVE-2018-17567",
          "identifiers": [
            "CVE-2018-17567"
          ],
          "not_impacted": "All versions after 3.6.2 before 3.7.0, all versions after 3.7.3 before 3.8.0, all versions after 3.8.3",
          "package_slug": "gem/jekyll",
          "pubdate": "2018-09-28",
          "solution": "Upgrade to versions 3.6.3, 3.7.4, 3.8.4 or above.",
          "title": "Improper Link Resolution Before File Access",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2018-17567",
            "https://jekyllrb.com/news/2018/09/19/security-fixes-for-3-6-3-7-3-8/"
          ],
          "uuid": "35655dd6-41ca-4a68-9f38-93fb0ba26e86"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:jekyllrb:jekyll:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "3.7.3",
                "versionStartIncluding": "3.7.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:jekyllrb:jekyll:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "3.8.3",
                "versionStartIncluding": "3.8.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:jekyllrb:jekyll:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "3.6.2",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-17567"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
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        "description": {
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              "value": "Jekyll through 3.6.2, 3.7.x through 3.7.3, and 3.8.x through 3.8.3 allows attackers to access arbitrary files by specifying a symlink in the \"include\" key in the \"_config.yml\" file."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-59"
                }
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://jekyllrb.com/news/2018/09/19/security-fixes-for-3-6-3-7-3-8/",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://jekyllrb.com/news/2018/09/19/security-fixes-for-3-6-3-7-3-8/"
            },
            {
              "name": "https://github.com/jekyll/jekyll/pull/7224",
              "refsource": "CONFIRM",
              "tags": [
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                "Third Party Advisory"
              ],
              "url": "https://github.com/jekyll/jekyll/pull/7224"
            },
            {
              "name": "[accumulo-commits] 20190424 [accumulo-website] branch master updated: Update Jekyll (CVE-2018-17567)",
              "refsource": "MLIST",
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                "Third Party Advisory"
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              "url": "https://lists.apache.org/thread.html/71da391f584b2fb301d2df0e491b279d87287e2fb4b11309f04ad984@%3Ccommits.accumulo.apache.org%3E"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "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": "2019-04-26T14:21Z",
      "publishedDate": "2018-09-28T00:29Z"
    }
  }
}


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  • 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.
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  • 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.



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