GSD-2021-3907

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
OctoRPKI does not escape a URI with a filename containing "..", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.
Aliases
Aliases
CVE-2021-3907
To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-3907",
    "description": "OctoRPKI does not escape a URI with a filename containing \"..\", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.",
    "id": "GSD-2021-3907",
    "references": [
      "https://www.debian.org/security/2022/dsa-5041",
      "https://www.debian.org/security/2021/dsa-5033"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-3907"
      ],
      "details": "OctoRPKI does not escape a URI with a filename containing \"..\", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.",
      "id": "GSD-2021-3907",
      "modified": "2023-12-13T01:23:34.139527Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cna@cloudflare.com",
        "DATE_PUBLIC": "2021-11-01T22:16:00.000Z",
        "ID": "CVE-2021-3907",
        "STATE": "PUBLIC",
        "TITLE": "Arbitrary filepath traversal via URI injection"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "octorpki",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "1.4.3"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Cloudflare"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Koen van Hove"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "OctoRPKI does not escape a URI with a filename containing \"..\", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-20 Improper Input Validation"
              }
            ]
          },
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-cqh2-vc2f-q4fh",
            "refsource": "MISC",
            "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-cqh2-vc2f-q4fh"
          },
          {
            "name": "DSA-5033",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2021/dsa-5033"
          },
          {
            "name": "DSA-5041",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2022/dsa-5041"
          },
          {
            "name": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-3jhm-87m6-x959",
            "refsource": "MISC",
            "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-3jhm-87m6-x959"
          }
        ]
      },
      "solution": [
        {
          "lang": "eng",
          "value": "Upgrade to 1.4.3"
        }
      ],
      "source": {
        "advisory": "GHSA-3jhm-87m6-x959",
        "discovery": "EXTERNAL"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003cv1.3.0",
          "affected_versions": "All versions before 1.3.0",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-22",
            "CWE-937"
          ],
          "date": "2023-02-01",
          "description": "OctoRPKI does not escape a URI with a filename containing `\"..\"`, this allows a repository to create a file, (ex. `rsync://example.org/repo/../../etc/cron.daily/evil.roa`), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.",
          "fixed_versions": [
            "v1.3.0"
          ],
          "identifier": "CVE-2021-3907",
          "identifiers": [
            "CVE-2021-3907",
            "GHSA-cqh2-vc2f-q4fh",
            "GHSA-3jhm-87m6-x959"
          ],
          "not_impacted": "",
          "package_slug": "go/github.com/cloudflare/cfrpki",
          "pubdate": "2021-11-11",
          "solution": "Upgrade to version 1.3.0 or above.",
          "title": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-3907",
            "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-cqh2-vc2f-q4fh"
          ],
          "uuid": "ba3df3a8-7ea7-4c35-9733-91b9f4609f08",
          "versions": [
            {
              "commit": {
                "sha": "a8db4e009ef217484598ba1fd1c595b54e0f6422",
                "tags": [
                  "v1.3.0"
                ],
                "timestamp": "20210819152514"
              },
              "number": "v1.3.0"
            }
          ]
        },
        {
          "affected_range": "\u003c1.4",
          "affected_versions": "All versions before 1.4",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-22",
            "CWE-78",
            "CWE-937"
          ],
          "date": "2022-01-04",
          "description": "OctoRPKI does not escape a URI with a filename containing \"..\", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.",
          "fixed_versions": [
            "1.4"
          ],
          "identifier": "CVE-2021-3907",
          "identifiers": [
            "GHSA-cqh2-vc2f-q4fh",
            "CVE-2021-3907"
          ],
          "not_impacted": "All versions starting from 1.4",
          "package_slug": "go/github.com/cloudflare/cfrpki/cmd/octorpki",
          "pubdate": "2021-11-10",
          "solution": "Upgrade to version 1.4 or above.",
          "title": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "urls": [
            "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-cqh2-vc2f-q4fh",
            "https://nvd.nist.gov/vuln/detail/CVE-2021-3907",
            "https://github.com/advisories/GHSA-cqh2-vc2f-q4fh"
          ],
          "uuid": "3bad273c-b036-4f78-a4f0-4e3ff96de211"
        },
        {
          "affected_range": "\u003cv1.4.3",
          "affected_versions": "All versions before 1.4.3",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-22",
            "CWE-78",
            "CWE-937"
          ],
          "date": "2023-02-07",
          "description": "OctoRPKI does not escape a URI with a filename containing \"..\", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.",
          "fixed_versions": [
            "v1.4.3"
          ],
          "identifier": "CVE-2021-3907",
          "identifiers": [
            "GHSA-cqh2-vc2f-q4fh",
            "CVE-2021-3907"
          ],
          "not_impacted": "All versions starting from 1.4.3",
          "package_slug": "go/github.com/cloudflare/cfrpki/validator/pki",
          "pubdate": "2021-11-10",
          "solution": "Upgrade to version 1.4.3 or above.",
          "title": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "urls": [
            "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-cqh2-vc2f-q4fh",
            "https://nvd.nist.gov/vuln/detail/CVE-2021-3907",
            "https://www.debian.org/security/2021/dsa-5033",
            "https://www.debian.org/security/2022/dsa-5041",
            "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-3jhm-87m6-x959",
            "https://github.com/cloudflare/cfrpki/commit/eb9cc4db7b7b79e44f56dfaa959fccdfb2af8284",
            "https://pkg.go.dev/vuln/GO-2022-0248",
            "https://github.com/advisories/GHSA-cqh2-vc2f-q4fh"
          ],
          "uuid": "650510cf-d3cd-4e20-bb2f-7fc5619a205e",
          "versions": [
            {
              "commit": {
                "sha": "828f93020875c2a3fdd222b70e4756df0ef4e847",
                "tags": [
                  "v1.4.3"
                ],
                "timestamp": "20220214191058"
              },
              "number": "v1.4.3"
            }
          ]
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.3.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cna@cloudflare.com",
          "ID": "CVE-2021-3907"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "OctoRPKI does not escape a URI with a filename containing \"..\", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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              "description": [
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                  "value": "CWE-22"
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        "references": {
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            {
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              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-cqh2-vc2f-q4fh"
            },
            {
              "name": "DSA-5033",
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              ],
              "url": "https://www.debian.org/security/2021/dsa-5033"
            },
            {
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              ],
              "url": "https://www.debian.org/security/2022/dsa-5041"
            },
            {
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              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-3jhm-87m6-x959"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-02-01T15:15Z",
      "publishedDate": "2021-11-11T22:15Z"
    }
  }
}


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Sightings

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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.