gsd-2020-8163
Vulnerability from gsd
Modified
2020-05-15 00:00
Details
There was a vulnerability in versions of Rails prior to 5.0.1 that would allow an attacker who controlled the `locals` argument of a `render` call. Versions Affected: rails < 5.0.1 Not affected: Applications that do not allow users to control the names of locals. Fixed Versions: 4.2.11.2 Impact ------ In the scenario where an attacker might be able to control the name of a local passed into `render`, they can acheive remote code execution. Workarounds ----------- Until such time as the patch can be applied, application developers should ensure that all user-provided local names are alphanumeric.
Aliases
Aliases
CVE-2020-8163


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-8163",
    "description": "The is a code injection vulnerability in versions of Rails prior to 5.0.1 that wouldallow an attacker who controlled the `locals` argument of a `render` call to perform a RCE.",
    "id": "GSD-2020-8163",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-8163.html",
      "https://packetstormsecurity.com/files/cve/CVE-2020-8163"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "actionview",
            "purl": "pkg:gem/actionview"
          }
        }
      ],
      "aliases": [
        "CVE-2020-8163",
        "GHSA-cr3x-7m39-c6jq"
      ],
      "details": "There was a vulnerability in versions of Rails prior to 5.0.1 that would\nallow an attacker who controlled the `locals` argument of a `render` call.\n\nVersions Affected:  rails \u003c 5.0.1\nNot affected:       Applications that do not allow users to control the names of locals.\nFixed Versions:     4.2.11.2\n\nImpact\n------\n\nIn the scenario where an attacker might be able to control the name of a\nlocal passed into `render`, they can acheive remote code execution.\n\nWorkarounds\n-----------\n\nUntil such time as the patch can be applied, application developers should\nensure that all user-provided local names are alphanumeric.\n",
      "id": "GSD-2020-8163",
      "modified": "2020-05-15T00:00:00.000Z",
      "published": "2020-05-15T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://groups.google.com/forum/#!topic/rubyonrails-security/hWuKcHyoKh0"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 8.8,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Potential remote code execution of user-provided local names in ActionView"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "support@hackerone.com",
        "ID": "CVE-2020-8163",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "https://github.com/rails/rails",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "Fixed in 4.2.11.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "The is a code injection vulnerability in versions of Rails prior to 5.0.1 that wouldallow an attacker who controlled the `locals` argument of a `render` call to perform a RCE."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Code Injection (CWE-94)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://hackerone.com/reports/304805",
            "refsource": "MISC",
            "url": "https://hackerone.com/reports/304805"
          },
          {
            "name": "https://groups.google.com/g/rubyonrails-security/c/hWuKcHyoKh0",
            "refsource": "MISC",
            "url": "https://groups.google.com/g/rubyonrails-security/c/hWuKcHyoKh0"
          },
          {
            "name": "[debian-lts-announce] 20200720 [SECURITY] [DLA 2282-1] rails security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html"
          },
          {
            "name": "http://packetstormsecurity.com/files/158604/Ruby-On-Rails-5.0.1-Remote-Code-Execution.html",
            "refsource": "MISC",
            "url": "http://packetstormsecurity.com/files/158604/Ruby-On-Rails-5.0.1-Remote-Code-Execution.html"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2020-8163",
      "cvss_v3": 8.8,
      "date": "2020-05-15",
      "description": "There was a vulnerability in versions of Rails prior to 5.0.1 that would\nallow an attacker who controlled the `locals` argument of a `render` call.\n\nVersions Affected:  rails \u003c 5.0.1\nNot affected:       Applications that do not allow users to control the names of locals.\nFixed Versions:     4.2.11.2\n\nImpact\n------\n\nIn the scenario where an attacker might be able to control the name of a\nlocal passed into `render`, they can acheive remote code execution.\n\nWorkarounds\n-----------\n\nUntil such time as the patch can be applied, application developers should\nensure that all user-provided local names are alphanumeric.\n",
      "framework": "rails",
      "gem": "actionview",
      "ghsa": "cr3x-7m39-c6jq",
      "patched_versions": [
        "\u003e= 4.2.11.2"
      ],
      "title": "Potential remote code execution of user-provided local names in ActionView",
      "url": "https://groups.google.com/forum/#!topic/rubyonrails-security/hWuKcHyoKh0"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c5.0.1",
          "affected_versions": "All versions before 5.0.1",
          "cvss_v2": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "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-937",
            "CWE-94"
          ],
          "date": "2020-07-27",
          "description": "The is a code injection vulnerability in versions of Rails that wouldallow an attacker who controlled the `locals` argument of a `render` call to perform a RCE.",
          "fixed_versions": [
            "5.0.1"
          ],
          "identifier": "CVE-2020-8163",
          "identifiers": [
            "CVE-2020-8163"
          ],
          "not_impacted": "All versions starting from 5.0.1",
          "package_slug": "gem/actionview",
          "pubdate": "2020-07-02",
          "solution": "Upgrade to version 5.0.1 or above.",
          "title": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-8163",
            "https://hackerone.com/reports/304805",
            "https://groups.google.com/g/rubyonrails-security/c/hWuKcHyoKh0",
            "https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html",
            "http://packetstormsecurity.com/files/158604/Ruby-On-Rails-5.0.1-Remote-Code-Execution.html"
          ],
          "uuid": "e7b1faab-af9c-4887-91b6-f9bce85b8d52"
        },
        {
          "affected_range": "\u003c5.0.1",
          "affected_versions": "All versions before 5.0.1",
          "cvss_v2": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "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-937",
            "CWE-94"
          ],
          "date": "2020-07-27",
          "description": "There is a code injection vulnerability in versions of Rails that would allow an attacker who controlled the `locals` argument of a `render` call to perform a RCE.",
          "fixed_versions": [
            "5.0.1"
          ],
          "identifier": "CVE-2020-8163",
          "identifiers": [
            "CVE-2020-8163"
          ],
          "not_impacted": "All versions starting from 5.0.1",
          "package_slug": "gem/rails",
          "pubdate": "2020-07-02",
          "solution": "Upgrade to version 5.0.1 or above.",
          "title": "Code Injection",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-8163"
          ],
          "uuid": "41364cc8-22f6-4e1a-931b-1886194d132d"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.0.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve-assignments@hackerone.com",
          "ID": "CVE-2020-8163"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The is a code injection vulnerability in versions of Rails prior to 5.0.1 that wouldallow an attacker who controlled the `locals` argument of a `render` call to perform a RCE."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-94"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://hackerone.com/reports/304805",
              "refsource": "MISC",
              "tags": [
                "Permissions Required",
                "Third Party Advisory"
              ],
              "url": "https://hackerone.com/reports/304805"
            },
            {
              "name": "https://groups.google.com/g/rubyonrails-security/c/hWuKcHyoKh0",
              "refsource": "MISC",
              "tags": [
                "Mailing List",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://groups.google.com/g/rubyonrails-security/c/hWuKcHyoKh0"
            },
            {
              "name": "[debian-lts-announce] 20200720 [SECURITY] [DLA 2282-1] rails security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html"
            },
            {
              "name": "http://packetstormsecurity.com/files/158604/Ruby-On-Rails-5.0.1-Remote-Code-Execution.html",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://packetstormsecurity.com/files/158604/Ruby-On-Rails-5.0.1-Remote-Code-Execution.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "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
        }
      },
      "lastModifiedDate": "2022-05-24T16:06Z",
      "publishedDate": "2020-07-02T19:15Z"
    }
  }
}


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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • 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.