GSD-2018-6517

Vulnerability from gsd - Updated: 2019-03-08 00:00
Details
Prior to version 0.3.0, chloride's use of net-ssh resulted in host fingerprints for previously unknown hosts getting added to the user's known_hosts file without confirmation. In version 0.3.0 this is updated so that the user's known_hosts file is not updated by chloride.
Aliases
Aliases
CVE-2018-6517
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{
  "GSD": {
    "alias": "CVE-2018-6517",
    "description": "Prior to version 0.3.0, chloride\u0027s use of net-ssh resulted in host fingerprints for previously unknown hosts getting added to the user\u0027s known_hosts file without confirmation. In version 0.3.0 this is updated so that the user\u0027s known_hosts file is not updated by chloride.",
    "id": "GSD-2018-6517"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "chloride",
            "purl": "pkg:gem/chloride"
          }
        }
      ],
      "aliases": [
        "CVE-2018-6517",
        "GHSA-573x-jhqh-jg36"
      ],
      "details": "Prior to version 0.3.0, chloride\u0027s use of net-ssh resulted in host fingerprints\nfor previously unknown hosts getting added to the user\u0027s known_hosts file without\nconfirmation. In version 0.3.0 this is updated so that the user\u0027s known_hosts file\nis not updated by chloride.\n",
      "id": "GSD-2018-6517",
      "modified": "2019-03-08T00:00:00.000Z",
      "published": "2019-03-08T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://puppet.com/security/cve/CVE-2018-6517"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 5.0,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Improper handling of ssh known_hosts file with Chloride"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@puppet.com",
        "ID": "CVE-2018-6517",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Chloride",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "prior to 0.3.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Puppet"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Prior to version 0.3.0, chloride\u0027s use of net-ssh resulted in host fingerprints for previously unknown hosts getting added to the user\u0027s known_hosts file without confirmation. In version 0.3.0 this is updated so that the user\u0027s known_hosts file is not updated by chloride."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Improper handling of known_hosts file"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://puppet.com/security/cve/CVE-2018-6517",
            "refsource": "CONFIRM",
            "url": "https://puppet.com/security/cve/CVE-2018-6517"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2018-6517",
      "cvss_v3": 5.0,
      "date": "2019-03-08",
      "description": "Prior to version 0.3.0, chloride\u0027s use of net-ssh resulted in host fingerprints\nfor previously unknown hosts getting added to the user\u0027s known_hosts file without\nconfirmation. In version 0.3.0 this is updated so that the user\u0027s known_hosts file\nis not updated by chloride.\n",
      "gem": "chloride",
      "ghsa": "573x-jhqh-jg36",
      "patched_versions": [
        "\u003e= 0.3.0"
      ],
      "title": "Improper handling of ssh known_hosts file with Chloride",
      "url": "https://puppet.com/security/cve/CVE-2018-6517"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c0.3.0",
          "affected_versions": "All versions before 0.3.0",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-295",
            "CWE-937"
          ],
          "date": "2019-10-03",
          "description": "Chloride\u0027s use of net-ssh resulted in host fingerprints for previously unknown hosts getting added to the user\u0027s `known_hosts` file without confirmation.",
          "fixed_versions": [
            "0.3.0"
          ],
          "identifier": "CVE-2018-6517",
          "identifiers": [
            "CVE-2018-6517"
          ],
          "not_impacted": "All versions starting from 0.3.0",
          "package_slug": "gem/chloride",
          "pubdate": "2019-03-21",
          "solution": "Upgrade to version 0.3.0 or above.",
          "title": "Improper Certificate Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2018-6517"
          ],
          "uuid": "f67b84b7-c5da-4319-9f64-ff1b1b8349c6"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:puppet:chloride:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.3.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@puppet.com",
          "ID": "CVE-2018-6517"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Prior to version 0.3.0, chloride\u0027s use of net-ssh resulted in host fingerprints for previously unknown hosts getting added to the user\u0027s known_hosts file without confirmation. In version 0.3.0 this is updated so that the user\u0027s known_hosts file is not updated by chloride."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-295"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://puppet.com/security/cve/CVE-2018-6517",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://puppet.com/security/cve/CVE-2018-6517"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/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": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2019-10-03T00:03Z",
      "publishedDate": "2019-03-21T16:00Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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