GSD-2019-16377

Vulnerability from gsd - Updated: 2019-09-23 00:00
Details
With the consul ruby gem before 1.0.3, if a controller checks multiple powers using `:if` or `:except` conditions, these conditions are erroneously applied to all power checks in that controller. This can lead to skipped power checks and hence unauthenticated access to certain controller actions.
Aliases
Aliases
CVE-2019-16377
To clipboard 

{
  "GSD": {
    "alias": "CVE-2019-16377",
    "description": "The makandra consul gem through 1.0.2 for Ruby has Incorrect Access Control.",
    "id": "GSD-2019-16377"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "consul",
            "purl": "pkg:gem/consul"
          }
        }
      ],
      "aliases": [
        "CVE-2019-16377",
        "GHSA-8jhx-9gf4-hhf5"
      ],
      "details": "With the consul ruby gem before 1.0.3, if a controller checks multiple powers\nusing `:if` or `:except` conditions, these conditions are erroneously applied\nto all power checks in that controller. This can lead to skipped power checks\nand hence unauthenticated access to certain controller actions.\n",
      "id": "GSD-2019-16377",
      "modified": "2019-09-23T00:00:00.000Z",
      "published": "2019-09-23T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://github.com/makandra/consul/issues/49"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 9.8,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Consul gem insufficient authentication check - Multiple powers in one controller are not always checked correctly"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2019-16377",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
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              },
              "vendor_name": "n/a"
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      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "The makandra consul gem through 1.0.2 for Ruby has Incorrect Access Control."
          }
        ]
      },
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        "problemtype_data": [
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                "lang": "eng",
                "value": "n/a"
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://rubygems.org/gems/consul",
            "refsource": "MISC",
            "url": "https://rubygems.org/gems/consul"
          },
          {
            "name": "https://github.com/makandra/consul/issues/49",
            "refsource": "MISC",
            "url": "https://github.com/makandra/consul/issues/49"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2019-16377",
      "cvss_v3": 9.8,
      "date": "2019-09-23",
      "description": "With the consul ruby gem before 1.0.3, if a controller checks multiple powers\nusing `:if` or `:except` conditions, these conditions are erroneously applied\nto all power checks in that controller. This can lead to skipped power checks\nand hence unauthenticated access to certain controller actions.\n",
      "gem": "consul",
      "ghsa": "8jhx-9gf4-hhf5",
      "patched_versions": [
        "\u003e= 1.0.3"
      ],
      "title": "Consul gem insufficient authentication check - Multiple powers in one controller are not always checked correctly",
      "url": "https://github.com/makandra/consul/issues/49"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c=1.0.2",
          "affected_versions": "All before 1.0.3",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2019-09-23",
          "description": "When a controller has multiple power directives, the `:only` and `:except` options of the last directive is applied to all directives. This can lead to unauthenticated access to certain controller actions.",
          "fixed_versions": [
            "1.0.3"
          ],
          "identifier": "CVE-2019-16377",
          "identifiers": [
            "CVE-2019-16377"
          ],
          "not_impacted": "All versions after 1.0.2",
          "package_slug": "gem/consul",
          "pubdate": "2019-09-23",
          "solution": "Upgrade to version 1.0.3 or above.",
          "title": "Incorrect Authorization",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2019-16377"
          ],
          "uuid": "bba4cca3-28e7-4a8a-8c62-43e801ca547b"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:makandra:consul:*:*:*:*:*:ruby:*:*",
                "cpe_name": [],
                "versionEndIncluding": "1.0.2",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-16377"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The makandra consul gem through 1.0.2 for Ruby has Incorrect Access Control."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-noinfo"
                }
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/makandra/consul/issues/49",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://github.com/makandra/consul/issues/49"
            },
            {
              "name": "https://rubygems.org/gems/consul",
              "refsource": "MISC",
              "tags": [
                "Product",
                "Third Party Advisory"
              ],
              "url": "https://rubygems.org/gems/consul"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2020-08-24T17:37Z",
      "publishedDate": "2019-09-23T16:15Z"
    }
  }
}



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