gsd-2020-15169
Vulnerability from gsd
Modified
2020-09-09 00:00
Details
There is a potential Cross-Site Scripting (XSS) vulnerability in Action View's translation helpers. Views that allow the user to control the default (not found) value of the `t` and `translate` helpers could be susceptible to XSS attacks. Impact ------ When an HTML-unsafe string is passed as the default for a missing translation key [named `html` or ending in `_html`](https://guides.rubyonrails.org/i18n.html#using-safe-html-translations), the default string is incorrectly marked as HTML-safe and not escaped. Vulnerable code may look like the following examples: ```erb <%# The welcome_html translation is not defined for the current locale: %> <%= t("welcome_html", default: untrusted_user_controlled_string) %> <%# Neither the title.html translation nor the missing.html translation is defined for the current locale: %> <%= t("title.html", default: [:"missing.html", untrusted_user_controlled_string]) %> ``` Workarounds ----------- Impacted users who can’t upgrade to a patched Rails version can avoid this issue by manually escaping default translations with the `html_escape` helper (aliased as `h`): ```erb <%= t("welcome_html", default: h(untrusted_user_controlled_string)) %> ```
Aliases
Aliases
CVE-2020-15169


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-15169",
    "description": "In Action View before versions 5.2.4.4 and 6.0.3.3 there is a potential Cross-Site Scripting (XSS) vulnerability in Action View\u0027s translation helpers. Views that allow the user to control the default (not found) value of the `t` and `translate` helpers could be susceptible to XSS attacks. When an HTML-unsafe string is passed as the default for a missing translation key named html or ending in _html, the default string is incorrectly marked as HTML-safe and not escaped. This is patched in versions 6.0.3.3 and 5.2.4.4. A workaround without upgrading is proposed in the source advisory.",
    "id": "GSD-2020-15169",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-15169.html",
      "https://www.debian.org/security/2020/dsa-4766",
      "https://access.redhat.com/errata/RHSA-2021:1313"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "actionview",
            "purl": "pkg:gem/actionview"
          }
        }
      ],
      "aliases": [
        "CVE-2020-15169",
        "GHSA-cfjv-5498-mph5"
      ],
      "details": "There is a potential Cross-Site Scripting (XSS) vulnerability in Action\nView\u0027s translation helpers. Views that allow the user to control the\ndefault (not found) value of the `t` and `translate` helpers could be\nsusceptible to XSS attacks.\n\nImpact\n------\n\nWhen an HTML-unsafe string is passed as the default for a missing\ntranslation key [named `html` or ending in `_html`](https://guides.rubyonrails.org/i18n.html#using-safe-html-translations),\nthe default string is incorrectly marked as HTML-safe and not escaped.\nVulnerable code may look like the following examples:\n\n```erb\n\u003c%# The welcome_html translation is not defined for the current locale: %\u003e\n\u003c%= t(\"welcome_html\", default: untrusted_user_controlled_string) %\u003e\n\n\u003c%# Neither the title.html translation nor the missing.html translation is defined for the current locale: %\u003e\n\u003c%= t(\"title.html\", default: [:\"missing.html\", untrusted_user_controlled_string]) %\u003e\n```\n\nWorkarounds\n-----------\nImpacted users who can\u2019t upgrade to a patched Rails version can avoid\nthis issue by manually escaping default translations with the\n`html_escape` helper (aliased as `h`):\n\n```erb\n\u003c%= t(\"welcome_html\", default: h(untrusted_user_controlled_string)) %\u003e\n```\n",
      "id": "GSD-2020-15169",
      "modified": "2020-09-09T00:00:00.000Z",
      "published": "2020-09-09T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://groups.google.com/g/rubyonrails-security/c/b-C9kSGXYrc"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 5.4,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Potential XSS vulnerability in Action View"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-15169",
        "STATE": "PUBLIC",
        "TITLE": "XSS in Action View"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "actionview",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 5.2.4.4"
                        },
                        {
                          "version_value": "\u003e= 6.0.0.0, \u003c 6.0.3.3"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "rails"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "In Action View before versions 5.2.4.4 and 6.0.3.3 there is a potential Cross-Site Scripting (XSS) vulnerability in Action View\u0027s translation helpers. Views that allow the user to control the default (not found) value of the `t` and `translate` helpers could be susceptible to XSS attacks. When an HTML-unsafe string is passed as the default for a missing translation key named html or ending in _html, the default string is incorrectly marked as HTML-safe and not escaped. This is patched in versions 6.0.3.3 and 5.2.4.4. A workaround without upgrading is proposed in the source advisory."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-79 Cross-site Scripting (XSS)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/rails/rails/security/advisories/GHSA-cfjv-5498-mph5",
            "refsource": "CONFIRM",
            "url": "https://github.com/rails/rails/security/advisories/GHSA-cfjv-5498-mph5"
          },
          {
            "name": "DSA-4766",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2020/dsa-4766"
          },
          {
            "name": "FEDORA-2020-4dd34860a3",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XJ7NUWXAEVRQCROIIBV4C6WXO6IR3KSB/"
          },
          {
            "name": "[debian-lts-announce] 20201009 [SECURITY] [DLA 2403-1] rails security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00015.html"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-cfjv-5498-mph5",
        "discovery": "UNKNOWN"
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2020-15169",
      "cvss_v3": 5.4,
      "date": "2020-09-09",
      "description": "There is a potential Cross-Site Scripting (XSS) vulnerability in Action\nView\u0027s translation helpers. Views that allow the user to control the\ndefault (not found) value of the `t` and `translate` helpers could be\nsusceptible to XSS attacks.\n\nImpact\n------\n\nWhen an HTML-unsafe string is passed as the default for a missing\ntranslation key [named `html` or ending in `_html`](https://guides.rubyonrails.org/i18n.html#using-safe-html-translations),\nthe default string is incorrectly marked as HTML-safe and not escaped.\nVulnerable code may look like the following examples:\n\n```erb\n\u003c%# The welcome_html translation is not defined for the current locale: %\u003e\n\u003c%= t(\"welcome_html\", default: untrusted_user_controlled_string) %\u003e\n\n\u003c%# Neither the title.html translation nor the missing.html translation is defined for the current locale: %\u003e\n\u003c%= t(\"title.html\", default: [:\"missing.html\", untrusted_user_controlled_string]) %\u003e\n```\n\nWorkarounds\n-----------\nImpacted users who can\u2019t upgrade to a patched Rails version can avoid\nthis issue by manually escaping default translations with the\n`html_escape` helper (aliased as `h`):\n\n```erb\n\u003c%= t(\"welcome_html\", default: h(untrusted_user_controlled_string)) %\u003e\n```\n",
      "framework": "rails",
      "gem": "actionview",
      "ghsa": "cfjv-5498-mph5",
      "patched_versions": [
        "~\u003e 5.2.4, \u003e= 5.2.4.4",
        "\u003e= 6.0.3.3"
      ],
      "title": "Potential XSS vulnerability in Action View",
      "url": "https://groups.google.com/g/rubyonrails-security/c/b-C9kSGXYrc"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c5.2.4.4||\u003e=6.0.0.0 \u003c6.0.3.3",
          "affected_versions": "All versions before 5.2.4.4, all versions starting from 6.0.0.0 before 6.0.3.3",
          "cvss_v2": "AV:N/AC:M/Au:N/C:N/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-79",
            "CWE-937"
          ],
          "date": "2020-12-08",
          "description": "In Action View there is a potential Cross-Site Scripting (XSS) vulnerability in Action View\u0027s translation helpers. Views that allow the user to control the default (not found) value of the `t` and `translate` helpers could be susceptible to XSS attacks. When an HTML-unsafe string is passed as the default for a missing translation key named html or ending in `_html`, the default string is incorrectly marked as HTML-safe and not escaped.",
          "fixed_versions": [
            "5.2.4.4",
            "6.0.3.3"
          ],
          "identifier": "CVE-2020-15169",
          "identifiers": [
            "CVE-2020-15169",
            "GHSA-cfjv-5498-mph5"
          ],
          "not_impacted": "All versions starting from 5.2.4.4 before 6.0.0.0, all versions starting from 6.0.3.3",
          "package_slug": "gem/actionview",
          "pubdate": "2020-09-11",
          "solution": "Upgrade to versions 5.2.4.4, 6.0.3.3 or above.",
          "title": "Cross-site Scripting",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-15169"
          ],
          "uuid": "743b5195-4f16-40eb-8347-9faa07c0d4f1"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:action_view_project:action_view:*:*:*:*:*:ruby:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.2.4.4",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:action_view_project:action_view:*:*:*:*:*:ruby:*:*",
                "cpe_name": [],
                "versionEndExcluding": "6.0.3.3",
                "versionStartIncluding": "6.0.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2020-15169"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "In Action View before versions 5.2.4.4 and 6.0.3.3 there is a potential Cross-Site Scripting (XSS) vulnerability in Action View\u0027s translation helpers. Views that allow the user to control the default (not found) value of the `t` and `translate` helpers could be susceptible to XSS attacks. When an HTML-unsafe string is passed as the default for a missing translation key named html or ending in _html, the default string is incorrectly marked as HTML-safe and not escaped. This is patched in versions 6.0.3.3 and 5.2.4.4. A workaround without upgrading is proposed in the source advisory."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-79"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/rails/rails/security/advisories/GHSA-cfjv-5498-mph5",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/rails/rails/security/advisories/GHSA-cfjv-5498-mph5"
            },
            {
              "name": "DSA-4766",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2020/dsa-4766"
            },
            {
              "name": "FEDORA-2020-4dd34860a3",
              "refsource": "FEDORA",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XJ7NUWXAEVRQCROIIBV4C6WXO6IR3KSB/"
            },
            {
              "name": "[debian-lts-announce] 20201009 [SECURITY] [DLA 2403-1] rails security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00015.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "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
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "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"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2020-12-08T18:58Z",
      "publishedDate": "2020-09-11T16:15Z"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.