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CVE-2022-21190 (GCVE-0-2022-21190)

Vulnerability from cvelistv5 – Published: 2022-05-13 20:00 – Updated: 2024-09-17 03:32
VLAI
Title
Prototype Pollution
Summary
This affects the package convict before 6.2.3. This is a bypass of [CVE-2022-22143](https://security.snyk.io/vuln/SNYK-JS-CONVICT-2340604). The [fix](https://github.com/mozilla/node-convict/commit/3b86be087d8f14681a9c889d45da7fe3ad9cd880) introduced, relies on the startsWith method and does not prevent the vulnerability: before splitting the path, it checks if it starts with __proto__ or this.constructor.prototype. To bypass this check it's possible to prepend the dangerous paths with any string value followed by a dot, like for example foo.__proto__ or foo.this.constructor.prototype.
CWE
  • Prototype Pollution
Impacted products
Vendor Product Version CPE status
n/a convict Affected: unspecified , < 6.2.3 (custom)
Date Public
2022-05-13 00:00
Show details on NVD website

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            "url": "https://gist.github.com/dellalibera/cebce20e51410acebff1f46afdc89808"
          },
          {
            "source": "report@snyk.io",
            "tags": [
              "Broken Link",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/mozilla/node-convict/blob/3b86be087d8f14681a9c889d45da7fe3ad9cd880/packages/convict/src/main.js%23L571"
          },
          {
            "source": "report@snyk.io",
            "tags": [
              "Broken Link",
              "Release Notes",
              "Tool Signature"
            ],
            "url": "https://github.com/mozilla/node-convict/blob/master/CHANGELOG.md%23623---2022-05-07"
          },
          {
            "source": "report@snyk.io",
            "tags": [
              "Patch",
              "Tool Signature"
            ],
            "url": "https://github.com/mozilla/node-convict/commit/1ea0ab19c5208f66509e1c43b0d0f21c1fd29b75"
          },
          {
            "source": "report@snyk.io",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://snyk.io/vuln/SNYK-JS-CONVICT-2774757"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://gist.github.com/dellalibera/cebce20e51410acebff1f46afdc89808"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Broken Link",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/mozilla/node-convict/blob/3b86be087d8f14681a9c889d45da7fe3ad9cd880/packages/convict/src/main.js%23L571"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Broken Link",
              "Release Notes",
              "Tool Signature"
            ],
            "url": "https://github.com/mozilla/node-convict/blob/master/CHANGELOG.md%23623---2022-05-07"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Tool Signature"
            ],
            "url": "https://github.com/mozilla/node-convict/commit/1ea0ab19c5208f66509e1c43b0d0f21c1fd29b75"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://snyk.io/vuln/SNYK-JS-CONVICT-2774757"
          }
        ],
        "sourceIdentifier": "report@snyk.io",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-1321"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T15:50:37+00:00",
      "cve": "CVE-2022-21190",
      "id": "CVE-2022-21190",
      "initial_release_date": "2022-05-13T00:00:00+00:00",
      "product_status:known_not_affected": "4",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "convict: A Prototype Pollution Vulnerbility in convict",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-21190.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

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Detection rules are retrieved from Rulezet.

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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.


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