GSD-2015-2963

Vulnerability from gsd - Updated: 2015-06-05 00:00
Details
There is an issue where if an HTML file is uploaded with a .html extension, but the content type is listed as being `image/jpeg`, this will bypass a validation checking for images. But it will also pass the spoof check, because a file named .html and containing actual HTML passes the spoof check.
Aliases

{
  "GSD": {
    "alias": "CVE-2015-2963",
    "description": "The thoughtbot paperclip gem before 4.2.2 for Ruby does not consider the content-type value during media-type validation, which allows remote attackers to upload HTML documents and conduct cross-site scripting (XSS) attacks via a spoofed value, as demonstrated by image/jpeg.",
    "id": "GSD-2015-2963"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "paperclip",
            "purl": "pkg:gem/paperclip"
          }
        }
      ],
      "aliases": [
        "CVE-2015-2963",
        "GHSA-6jvm-3j5h-79f6"
      ],
      "details": "There is an issue where if an HTML file is uploaded with a .html\nextension, but the content type is listed as being `image/jpeg`, this\nwill bypass a validation checking for images. But it will also pass the\nspoof check, because a file named .html and containing actual HTML\npasses the spoof check.\n",
      "id": "GSD-2015-2963",
      "modified": "2015-06-05T00:00:00.000Z",
      "published": "2015-06-05T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://robots.thoughtbot.com/paperclip-security-release"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 4.3,
          "type": "CVSS_V2"
        }
      ],
      "summary": "Paperclip Gem for Ruby vulnerable to content type spoofing"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "vultures@jpcert.or.jp",
        "ID": "CVE-2015-2963",
        "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": "The thoughtbot paperclip gem before 4.2.2 for Ruby does not consider the content-type value during media-type validation, which allows remote attackers to upload HTML documents and conduct cross-site scripting (XSS) attacks via a spoofed value, as demonstrated by image/jpeg."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "75304",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/75304"
          },
          {
            "name": "https://robots.thoughtbot.com/paperclip-security-release",
            "refsource": "CONFIRM",
            "url": "https://robots.thoughtbot.com/paperclip-security-release"
          },
          {
            "name": "https://github.com/thoughtbot/paperclip/commit/9aee4112f36058cd28d5fe4a006d6981bd1eda57",
            "refsource": "CONFIRM",
            "url": "https://github.com/thoughtbot/paperclip/commit/9aee4112f36058cd28d5fe4a006d6981bd1eda57"
          },
          {
            "name": "JVN#83881261",
            "refsource": "JVN",
            "url": "http://jvn.jp/en/jp/JVN83881261/index.html"
          },
          {
            "name": "JVNDB-2015-000088",
            "refsource": "JVNDB",
            "url": "http://jvndb.jvn.jp/jvndb/JVNDB-2015-000088"
          },
          {
            "name": "[oss-security] 20150618 Re: CVE request: Content type spoofing in ruby gem paperclip \u003c4.2.2",
            "refsource": "MLIST",
            "url": "http://openwall.com/lists/oss-security/2015/06/19/3"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2015-2963",
      "cvss_v2": 4.3,
      "date": "2015-06-05",
      "description": "There is an issue where if an HTML file is uploaded with a .html\nextension, but the content type is listed as being `image/jpeg`, this\nwill bypass a validation checking for images. But it will also pass the\nspoof check, because a file named .html and containing actual HTML\npasses the spoof check.\n",
      "gem": "paperclip",
      "ghsa": "6jvm-3j5h-79f6",
      "patched_versions": [
        "\u003e= 4.2.2"
      ],
      "title": "Paperclip Gem for Ruby vulnerable to content type spoofing",
      "url": "https://robots.thoughtbot.com/paperclip-security-release"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c4.2.2",
          "affected_versions": "All versions before 4.2.2",
          "credit": "MORI Shingo of DeNA Co., Ltd.",
          "cvss_v2": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-79",
            "CWE-937"
          ],
          "date": "2016-12-02",
          "description": "There is an issue where if an HTML file is uploaded with a `.html` extension, but the content type is listed as being `image/jpeg`, this will bypass a validation checking for images. But it will also pass the spoof check, because a file named `.html` and containing actual HTML passes the spoof check.",
          "fixed_versions": [
            "4.2.2"
          ],
          "identifier": "CVE-2015-2963",
          "identifiers": [
            "CVE-2015-2963"
          ],
          "not_impacted": "All versions starting from 4.2.2",
          "package_slug": "gem/paperclip",
          "pubdate": "2015-07-10",
          "solution": "Upgrade to version 4.2.2 or above.",
          "title": "Content type spoofing vulnerability",
          "urls": [
            "https://robots.thoughtbot.com/paperclip-security-release"
          ],
          "uuid": "152d654f-3deb-4c38-8494-e855c89658d3"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:thoughtbot:paperclip:*:*:*:*:*:ruby:*:*",
                "cpe_name": [],
                "versionEndIncluding": "4.2.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2015-2963"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The thoughtbot paperclip gem before 4.2.2 for Ruby does not consider the content-type value during media-type validation, which allows remote attackers to upload HTML documents and conduct cross-site scripting (XSS) attacks via a spoofed value, as demonstrated by image/jpeg."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-79"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/thoughtbot/paperclip/commit/9aee4112f36058cd28d5fe4a006d6981bd1eda57",
              "refsource": "CONFIRM",
              "tags": [
                "Exploit",
                "Vendor Advisory"
              ],
              "url": "https://github.com/thoughtbot/paperclip/commit/9aee4112f36058cd28d5fe4a006d6981bd1eda57"
            },
            {
              "name": "[oss-security] 20150618 Re: CVE request: Content type spoofing in ruby gem paperclip \u003c4.2.2",
              "refsource": "MLIST",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "http://openwall.com/lists/oss-security/2015/06/19/3"
            },
            {
              "name": "JVN#83881261",
              "refsource": "JVN",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "http://jvn.jp/en/jp/JVN83881261/index.html"
            },
            {
              "name": "JVNDB-2015-000088",
              "refsource": "JVNDB",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "http://jvndb.jvn.jp/jvndb/JVNDB-2015-000088"
            },
            {
              "name": "https://robots.thoughtbot.com/paperclip-security-release",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://robots.thoughtbot.com/paperclip-security-release"
            },
            {
              "name": "75304",
              "refsource": "BID",
              "tags": [],
              "url": "http://www.securityfocus.com/bid/75304"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        }
      },
      "lastModifiedDate": "2016-12-03T03:07Z",
      "publishedDate": "2015-07-10T17:59Z"
    }
  }
}



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