gsd-2021-33621
Vulnerability from gsd
Modified
2022-11-18 00:00
Details
cgi.rb in Ruby through 2.6.x, through 3.0x, and through 3.1.x allows HTTP header injection. If a CGI application using the CGI library inserts untrusted input into the HTTP response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients.
Aliases



{
  "GSD": {
    "alias": "CVE-2021-33621",
    "id": "GSD-2021-33621",
    "references": [
      "https://advisories.mageia.org/CVE-2021-33621.html",
      "https://www.suse.com/security/cve/CVE-2021-33621.html",
      "https://ubuntu.com/security/CVE-2021-33621"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "cgi",
            "purl": "pkg:gem/cgi"
          }
        }
      ],
      "aliases": [
        "CVE-2021-33621",
        "GHSA-vc47-6rqg-c7f5"
      ],
      "details": "cgi.rb in Ruby through 2.6.x, through 3.0x, and through 3.1.x allows HTTP\nheader injection. If a CGI application using the CGI library inserts\nuntrusted input into the HTTP response header, an attacker can exploit it to\ninsert a newline character to split a header, and inject malicious content to\ndeceive clients.",
      "id": "GSD-2021-33621",
      "modified": "2022-11-18T00:00:00.000Z",
      "published": "2022-11-18T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 8.8,
          "type": "CVSS_V3"
        }
      ],
      "summary": "HTTP response splitting in CGI"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-33621",
        "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 cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/",
            "refsource": "CONFIRM",
            "url": "https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/"
          },
          {
            "name": "FEDORA-2022-ef96a58bbe",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DQR7LWED6VAPD5ATYOBZIGJQPCUBRJBX/"
          },
          {
            "name": "FEDORA-2022-f0f6c6bec2",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YACE6ORF2QBXXBK2V2CM36D7TZMEJVAS/"
          },
          {
            "name": "FEDORA-2022-b9b710f199",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/THVTYHHEOVLQFCFHWURZYO7PVUPBHRZD/"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20221228-0004/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20221228-0004/"
          },
          {
            "name": "[debian-lts-announce] 20230609 [SECURITY] [DLA 3450-1] ruby2.5 security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00012.html"
          },
          {
            "name": "GLSA-202401-27",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202401-27"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2021-33621",
      "cvss_v3": 8.8,
      "date": "2022-11-18",
      "description": "cgi.rb in Ruby through 2.6.x, through 3.0x, and through 3.1.x allows HTTP\nheader injection. If a CGI application using the CGI library inserts\nuntrusted input into the HTTP response header, an attacker can exploit it to\ninsert a newline character to split a header, and inject malicious content to\ndeceive clients.",
      "gem": "cgi",
      "ghsa": "vc47-6rqg-c7f5",
      "patched_versions": [
        "~\u003e 0.1.0.2",
        "~\u003e 0.2.2",
        "\u003e= 0.3.5"
      ],
      "title": "HTTP response splitting in CGI",
      "url": "https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c0.1.0.2||\u003e=0.2.0 \u003c0.2.2||\u003e=0.3.0 \u003c0.3.5",
          "affected_versions": "All versions before 0.1.0.2, all versions starting from 0.2.0 before 0.2.2, all versions starting from 0.3.0 before 0.3.5",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-74",
            "CWE-937"
          ],
          "date": "2023-08-08",
          "description": "The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object.",
          "fixed_versions": [
            "0.1.0.2",
            "0.2.2",
            "0.3.5"
          ],
          "identifier": "CVE-2021-33621",
          "identifiers": [
            "CVE-2021-33621"
          ],
          "not_impacted": "All versions starting from 0.1.0.2 before 0.2.0, all versions starting from 0.2.2 before 0.3.0, all versions starting from 0.3.5",
          "package_slug": "gem/cgi",
          "pubdate": "2022-11-18",
          "solution": "Upgrade to versions 0.1.0.2, 0.2.2, 0.3.5 or above.",
          "title": "Interpretation Conflict",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-33621",
            "https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/"
          ],
          "uuid": "31b0495b-ec38-4bb8-bba0-5da1f1b6d492"
        }
      ]
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:ruby-lang:cgi:*:*:*:*:*:ruby:*:*",
                    "matchCriteriaId": "CABF5DC4-7B4F-4548-B2DF-914B096246B8",
                    "versionEndExcluding": "0.1.0.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:ruby-lang:cgi:*:*:*:*:*:ruby:*:*",
                    "matchCriteriaId": "E6B2E611-4DD9-4265-AC1E-AA10826582D2",
                    "versionEndExcluding": "0.2.2",
                    "versionStartIncluding": "0.2.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:ruby-lang:cgi:*:*:*:*:*:ruby:*:*",
                    "matchCriteriaId": "A6DA6066-2A67-4EE2-934F-3A0CF3D66AA7",
                    "versionEndExcluding": "0.3.5",
                    "versionStartIncluding": "0.3.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",
                    "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3553CC40-CE13-48A8-B959-0C0B96F1FAD1",
                    "versionEndExcluding": "2.7.7",
                    "versionStartIncluding": "2.7.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3047B1E3-1CB1-4270-AB66-CF194AECB87E",
                    "versionEndExcluding": "3.0.5",
                    "versionStartIncluding": "3.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "576D85B3-8EA3-42F8-89FE-316057C9971D",
                    "versionEndExcluding": "3.1.3",
                    "versionStartIncluding": "3.1.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object."
          },
          {
            "lang": "es",
            "value": "La gema cgi anterior a 0.1.0.2, 0.2.x anterior a 0.2.2 y 0.3.x anterior a 0.3.5 para Ruby permite la divisi\u00f3n de respuestas HTTP. Esto es relevante para aplicaciones que utilizan entradas de usuarios que no son de confianza, ya sea para generar una respuesta HTTP o para crear un objeto CGI::Cookie."
          }
        ],
        "id": "CVE-2021-33621",
        "lastModified": "2024-01-24T05:15:10.787",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2022-11-18T23:15:18.987",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00012.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQR7LWED6VAPD5ATYOBZIGJQPCUBRJBX/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/THVTYHHEOVLQFCFHWURZYO7PVUPBHRZD/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YACE6ORF2QBXXBK2V2CM36D7TZMEJVAS/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://security.gentoo.org/glsa/202401-27"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20221228-0004/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-74"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading...

Loading...