GSD-2019-10842

Vulnerability from gsd - Updated: 2019-04-04 00:00
Details
Arbitrary code execution (via backdoor code, when downloaded from rubygems.org) was discovered in bootstrap-sass 3.2.0.3. Users are advised to upgrade immediately to 3.2.0.4 An unauthenticated attacker can craft the ___cfduid cookie value with base64 arbitrary code to be executed via eval(), which can be leveraged to execute arbitrary code on the target system. (Note that there are three underscore characters in the cookie name. This is unrelated to the __cfduid cookie that is legitimately used by Cloudflare.)
Aliases
Aliases
CVE-2019-10842
To clipboard 

{
  "GSD": {
    "alias": "CVE-2019-10842",
    "description": "Arbitrary code execution (via backdoor code) was discovered in bootstrap-sass 3.2.0.3, when downloaded from rubygems.org. An unauthenticated attacker can craft the ___cfduid cookie value with base64 arbitrary code to be executed via eval(), which can be leveraged to execute arbitrary code on the target system. Note that there are three underscore characters in the cookie name. This is unrelated to the __cfduid cookie that is legitimately used by Cloudflare.",
    "id": "GSD-2019-10842",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-10842.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "bootstrap-sass",
            "purl": "pkg:gem/bootstrap-sass"
          }
        }
      ],
      "aliases": [
        "CVE-2019-10842",
        "GHSA-vqqv-v9m2-48p2"
      ],
      "details": "Arbitrary code execution (via backdoor code, when\ndownloaded from rubygems.org) was discovered in\nbootstrap-sass 3.2.0.3.\n\nUsers are advised to upgrade immediately to 3.2.0.4\n\nAn unauthenticated attacker can craft the ___cfduid cookie value\nwith base64 arbitrary code to be executed via eval(), which can\nbe leveraged to execute arbitrary code on the target system.\n(Note that there are three underscore characters in the cookie name.\nThis is unrelated to the __cfduid cookie that is legitimately used by\nCloudflare.)\n",
      "id": "GSD-2019-10842",
      "modified": "2019-04-04T00:00:00.000Z",
      "published": "2019-04-04T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://github.com/twbs/bootstrap-sass/issues/1195"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 9.8,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Remote code execution in bootstrap-sass"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2019-10842",
        "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": "Arbitrary code execution (via backdoor code) was discovered in bootstrap-sass 3.2.0.3, when downloaded from rubygems.org. An unauthenticated attacker can craft the ___cfduid cookie value with base64 arbitrary code to be executed via eval(), which can be leveraged to execute arbitrary code on the target system. Note that there are three underscore characters in the cookie name. This is unrelated to the __cfduid cookie that is legitimately used by Cloudflare."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/twbs/bootstrap-sass/issues/1195",
            "refsource": "MISC",
            "url": "https://github.com/twbs/bootstrap-sass/issues/1195"
          },
          {
            "name": "https://snyk.io/blog/malicious-remote-code-execution-backdoor-discovered-in-the-popular-bootstrap-sass-ruby-gem/",
            "refsource": "MISC",
            "url": "https://snyk.io/blog/malicious-remote-code-execution-backdoor-discovered-in-the-popular-bootstrap-sass-ruby-gem/"
          },
          {
            "name": "https://snyk.io/vuln/SNYK-RUBY-BOOTSTRAPSASS-174093",
            "refsource": "MISC",
            "url": "https://snyk.io/vuln/SNYK-RUBY-BOOTSTRAPSASS-174093"
          },
          {
            "name": "http://dgb.github.io/2019/04/05/bootstrap-sass-backdoor.html",
            "refsource": "MISC",
            "url": "http://dgb.github.io/2019/04/05/bootstrap-sass-backdoor.html"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2019-10842",
      "cvss_v3": 9.8,
      "date": "2019-04-04",
      "description": "Arbitrary code execution (via backdoor code, when\ndownloaded from rubygems.org) was discovered in\nbootstrap-sass 3.2.0.3.\n\nUsers are advised to upgrade immediately to 3.2.0.4\n\nAn unauthenticated attacker can craft the ___cfduid cookie value\nwith base64 arbitrary code to be executed via eval(), which can\nbe leveraged to execute arbitrary code on the target system.\n(Note that there are three underscore characters in the cookie name.\nThis is unrelated to the __cfduid cookie that is legitimately used by\nCloudflare.)\n",
      "gem": "bootstrap-sass",
      "ghsa": "vqqv-v9m2-48p2",
      "patched_versions": [
        "\u003e= 3.2.0.4"
      ],
      "title": "Remote code execution in bootstrap-sass",
      "unaffected_versions": [
        "\u003c= 3.2.0.2"
      ],
      "url": "https://github.com/twbs/bootstrap-sass/issues/1195"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "=3.2.0.3",
          "affected_versions": "Version 3.2.0.3",
          "credit": "Derek Barnes",
          "cvss_v2": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937",
            "CWE-94"
          ],
          "date": "2019-04-11",
          "description": "An unauthenticated attacker can craft the `___cfduid` cookie value with base64 arbitrary code to be executed via `eval()`, which can be leveraged to execute arbitrary code on the target system. Note that there are three underscore characters in the cookie name. This is unrelated to the `__cfduid` cookie that is legitimately used by Cloudflare.",
          "fixed_versions": [
            "3.2.0.4"
          ],
          "identifier": "CVE-2019-10842",
          "identifiers": [
            "CVE-2019-10842"
          ],
          "not_impacted": "All versions before 3.2.0.3, all versions after 3.2.0.3",
          "package_slug": "gem/bootstrap-sass",
          "pubdate": "2019-04-04",
          "solution": "Upgrade to version 3.2.0.4 or above.",
          "title": "Malicious Package",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2019-10842",
            "https://github.com/twbs/bootstrap-sass/issues/1195"
          ],
          "uuid": "dc74a0f8-8251-49ca-a6af-c330d0b18a75"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:getbootstrap:bootstrap-sass:3.2.0.3:*:*:*:*:ruby:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-10842"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Arbitrary code execution (via backdoor code) was discovered in bootstrap-sass 3.2.0.3, when downloaded from rubygems.org. An unauthenticated attacker can craft the ___cfduid cookie value with base64 arbitrary code to be executed via eval(), which can be leveraged to execute arbitrary code on the target system. Note that there are three underscore characters in the cookie name. This is unrelated to the __cfduid cookie that is legitimately used by Cloudflare."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-94"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://snyk.io/vuln/SNYK-RUBY-BOOTSTRAPSASS-174093",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://snyk.io/vuln/SNYK-RUBY-BOOTSTRAPSASS-174093"
            },
            {
              "name": "https://snyk.io/blog/malicious-remote-code-execution-backdoor-discovered-in-the-popular-bootstrap-sass-ruby-gem/",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://snyk.io/blog/malicious-remote-code-execution-backdoor-discovered-in-the-popular-bootstrap-sass-ruby-gem/"
            },
            {
              "name": "https://github.com/twbs/bootstrap-sass/issues/1195",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://github.com/twbs/bootstrap-sass/issues/1195"
            },
            {
              "name": "http://dgb.github.io/2019/04/05/bootstrap-sass-backdoor.html",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://dgb.github.io/2019/04/05/bootstrap-sass-backdoor.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 10.0,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 10.0,
          "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2019-04-11T18:39Z",
      "publishedDate": "2019-04-04T04:29Z"
    }
  }
}


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