GSD-2018-3779

Vulnerability from gsd - Updated: 2018-08-09 00:00
Details
The gem duplicates official `activesupport` (no hyphen) code, but adds a compiled extension. The extension attempts to resolve a base64 encoded domain, downloads a payload, and executes. Replace this gem with the official `activesupport` gem.
Aliases
Aliases
CVE-2018-3779
To clipboard 

{
  "GSD": {
    "alias": "CVE-2018-3779",
    "description": "active-support ruby gem 5.2.0 could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system.",
    "id": "GSD-2018-3779"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "active-support",
            "purl": "pkg:gem/active-support"
          }
        }
      ],
      "aliases": [
        "CVE-2018-3779",
        "GHSA-2j55-pcw5-x4h2"
      ],
      "details": "The gem duplicates official `activesupport` (no hyphen) code, but adds a\ncompiled extension. The extension attempts to resolve a base64 encoded\ndomain, downloads a payload, and executes.\n\nReplace this gem with the official `activesupport` gem.\n",
      "id": "GSD-2018-3779",
      "modified": "2018-08-09T00:00:00.000Z",
      "published": "2018-08-09T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://hackerone.com/reports/392311"
        },
        {
          "type": "WEB",
          "url": "https://github.com/rubygems/rubygems.org/pull/1762"
        }
      ],
      "schema_version": "1.4.0",
      "summary": "Malicious ruby gem - active-support"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "support@hackerone.com",
        "ID": "CVE-2018-3779",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "active-support ruby gem",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "5.2.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "HackerOne"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "active-support ruby gem 5.2.0 could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Command Injection - Generic (CWE-77)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://hackerone.com/reports/392311",
            "refsource": "MISC",
            "url": "https://hackerone.com/reports/392311"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2018-3779",
      "date": "2018-08-09",
      "description": "The gem duplicates official `activesupport` (no hyphen) code, but adds a\ncompiled extension. The extension attempts to resolve a base64 encoded\ndomain, downloads a payload, and executes.\n\nReplace this gem with the official `activesupport` gem.\n",
      "gem": "active-support",
      "ghsa": "2j55-pcw5-x4h2",
      "related": {
        "url": [
          "https://github.com/rubygems/rubygems.org/pull/1762"
        ]
      },
      "title": "Malicious ruby gem - active-support",
      "url": "https://hackerone.com/reports/392311"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=0",
          "affected_versions": "All versions",
          "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-78",
            "CWE-937"
          ],
          "date": "2021-01-08",
          "description": "active-support ruby gem could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system.",
          "fixed_versions": [],
          "identifier": "CVE-2018-3779",
          "identifiers": [
            "GHSA-2j55-pcw5-x4h2",
            "CVE-2018-3779"
          ],
          "not_impacted": "",
          "package_slug": "gem/active-support",
          "pubdate": "2018-08-13",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2018-3779",
            "https://hackerone.com/reports/392311",
            "https://github.com/advisories/GHSA-2j55-pcw5-x4h2"
          ],
          "uuid": "a8ce6a79-6cc4-48e0-8661-49361476e851"
        },
        {
          "affected_range": "=5.2.0",
          "affected_versions": "Version 5.2.0",
          "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"
          ],
          "date": "2019-10-09",
          "description": "active-support could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system.",
          "fixed_versions": [
            "5.2.1"
          ],
          "identifier": "CVE-2018-3779",
          "identifiers": [
            "CVE-2018-3779"
          ],
          "not_impacted": "All versions before 5.2.0, all versions after 5.2.0",
          "package_slug": "gem/activesupport",
          "pubdate": "2018-08-10",
          "solution": "Upgrade to version 5.2.1 or above.",
          "title": "Command Injection",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2018-3779",
            "https://hackerone.com/reports/392311"
          ],
          "uuid": "d87e3ad2-67b8-4874-981d-924d1e43b959"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:activesupport_project:activesupport:5.2.0:*:*:*:*:ruby:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve-assignments@hackerone.com",
          "ID": "CVE-2018-3779"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "active-support ruby gem 5.2.0 could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-noinfo"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://hackerone.com/reports/392311",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://hackerone.com/reports/392311"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "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": "2019-10-09T23:40Z",
      "publishedDate": "2018-08-10T21:29Z"
    }
  }
}



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