Vulnerability-Lookup

GHSA-4HPQ-RJCX-7VJ9

Vulnerability from github – Published: 2021-09-13 20:05 – Updated: 2023-08-25 20:56

Summary

Clearance Gem Open Redirect Vulnerability

Details

This affects the package clearance before 2.5.0. The vulnerability can be possible when users are able to set the value of session[:return_to]. If the value used for return_to contains multiple leading slashes (/////example.com) the user ends up being redirected to the external domain that comes after the slashes (http://example.com).

Severity

7.6 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "clearance"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-23435"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-09-13T19:07:07Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "This affects the package clearance before 2.5.0. The vulnerability can be possible when users are able to set the value of `session[:return_to]`. If the value used for return_to contains multiple leading slashes (`/////example.com`) the user ends up being redirected to the external domain that comes after the slashes (`http://example.com`).",
  "id": "GHSA-4hpq-rjcx-7vj9",
  "modified": "2023-08-25T20:56:57Z",
  "published": "2021-09-13T20:05:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23435"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thoughtbot/clearance/pull/945"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-4hpq-rjcx-7vj9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/clearance/CVE-2021-23435.yml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/thoughtbot/clearance"
    },
    {
      "type": "WEB",
      "url": "https://snyk.io/vuln/SNYK-RUBY-CLEARANCE-1577284"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Clearance Gem Open Redirect Vulnerability"
}

CVE-2021-23435 (GCVE-0-2021-23435)

Vulnerability from cvelistv5 – Published: 2021-09-12 20:05 – Updated: 2024-09-16 23:55

Title

Open Redirect

Summary

This affects the package clearance before 2.5.0. The vulnerability can be possible when users are able to set the value of session[:return_to]. If the value used for return_to contains multiple leading slashes (/////example.com) the user ends up being redirected to the external domain that comes after the slashes (http://example.com).

Severity

7.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

CWE

Open Redirect

Assigner

snyk mitre root

References

2 references

URL	Tags
https://snyk.io/vuln/SNYK-RUBY-CLEARANCE-1577284	x_refsource_MISC
https://github.com/thoughtbot/clearance/pull/945	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	clearance	Affected: unspecified , < 2.5.0 (custom)

Date Public

2021-09-12 00:00

Credits

Snyk Security Team

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:05:56.218Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://snyk.io/vuln/SNYK-RUBY-CLEARANCE-1577284"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/thoughtbot/clearance/pull/945"
          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
      "affected": [
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          "product": "clearance",
          "vendor": "n/a",
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
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      "problemTypes": [
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              "description": "Open Redirect",
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        },
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/thoughtbot/clearance/pull/945"
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      ],
      "title": "Open Redirect",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "report@snyk.io",
          "DATE_PUBLIC": "2021-09-12T20:00:23.031648Z",
          "ID": "CVE-2021-23435",
          "STATE": "PUBLIC",
          "TITLE": "Open Redirect"
        },
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          "vendor": {
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              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "clearance",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "2.5.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
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        "credit": [
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            "lang": "eng",
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            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
            "version": "3.1"
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        },
        "problemtype": {
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                  "value": "Open Redirect"
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              "refsource": "MISC",
              "url": "https://snyk.io/vuln/SNYK-RUBY-CLEARANCE-1577284"
            },
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  "cveMetadata": {
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    "assignerShortName": "snyk",
    "cveId": "CVE-2021-23435",
    "datePublished": "2021-09-12T20:05:10.404Z",
    "dateReserved": "2021-01-08T00:00:00.000Z",
    "dateUpdated": "2024-09-16T23:55:46.556Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GSD-2021-23435

Vulnerability from gsd - Updated: 2021-09-13 00:00

Details

Aliases

CVE-2021-23435

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-23435",
    "description": "This affects the package clearance before 2.5.0. The vulnerability can be possible when users are able to set the value of session[:return_to]. If the value used for return_to contains multiple leading slashes (/////example.com) the user ends up being redirected to the external domain that comes after the slashes (http://example.com).",
    "id": "GSD-2021-23435"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "clearance",
            "purl": "pkg:gem/clearance"
          }
        }
      ],
      "aliases": [
        "CVE-2021-23435",
        "GHSA-4hpq-rjcx-7vj9"
      ],
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      "id": "GSD-2021-23435",
      "modified": "2021-09-13T00:00:00.000Z",
      "published": "2021-09-13T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://github.com/advisories/GHSA-4hpq-rjcx-7vj9"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 7.6,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Open Redirect in clearance"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "report@snyk.io",
        "DATE_PUBLIC": "2021-09-12T20:00:23.031648Z",
        "ID": "CVE-2021-23435",
        "STATE": "PUBLIC",
        "TITLE": "Open Redirect"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "clearance",
                    "version": {
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                          "version_affected": "\u003c",
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              "vendor_name": "n/a"
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          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
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          "privilegesRequired": "NONE",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
          "version": "3.1"
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      "problemtype": {
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                "value": "Open Redirect"
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            "name": "https://snyk.io/vuln/SNYK-RUBY-CLEARANCE-1577284",
            "refsource": "MISC",
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          },
          {
            "name": "https://github.com/thoughtbot/clearance/pull/945",
            "refsource": "MISC",
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        ]
      }
    },
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      "cvss_v3": 7.6,
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      "gem": "clearance",
      "ghsa": "4hpq-rjcx-7vj9",
      "patched_versions": [
        "\u003e= 2.5.0"
      ],
      "title": "Open Redirect in clearance",
      "url": "https://github.com/advisories/GHSA-4hpq-rjcx-7vj9"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c2.5.0",
          "affected_versions": "All versions before 2.5.0",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2021-09-23",
          "description": "This affects the package clearance The vulnerability can be possible when users are able to set the value of `session[:return_to]`.",
          "fixed_versions": [
            "2.5.0"
          ],
          "identifier": "CVE-2021-23435",
          "identifiers": [
            "CVE-2021-23435"
          ],
          "not_impacted": "All versions starting from 2.5.0",
          "package_slug": "gem/clearance",
          "pubdate": "2021-09-12",
          "solution": "Upgrade to version 2.5.0 or above.",
          "title": "URL Redirection to Untrusted Site (Open Redirect)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-23435"
          ],
          "uuid": "15a00489-9670-4142-bb4b-409657e3da73"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
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                "cpe_name": [],
                "versionEndExcluding": "2.5.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
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          "ID": "CVE-2021-23435"
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        "data_version": "4.0",
        "description": {
          "description_data": [
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              "value": "This affects the package clearance before 2.5.0. The vulnerability can be possible when users are able to set the value of session[:return_to]. If the value used for return_to contains multiple leading slashes (/////example.com) the user ends up being redirected to the external domain that comes after the slashes (http://example.com)."
            }
          ]
        },
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              "refsource": "CONFIRM",
              "tags": [
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              "url": "https://snyk.io/vuln/SNYK-RUBY-CLEARANCE-1577284"
            },
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          "cvssV2": {
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            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
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          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
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          "userInteractionRequired": true
        },
        "baseMetricV3": {
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            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
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            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
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          "exploitabilityScore": 2.8,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2021-09-23T17:33Z",
      "publishedDate": "2021-09-12T20:15Z"
    }
  }
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-4HPQ-RJCX-7VJ9

CVE-2021-23435 (GCVE-0-2021-23435)

GSD-2021-23435

Tags

Sightings

Nomenclature

Related by attack behaviour