Vulnerability-Lookup

FKIE_CVE-2021-23403

Vulnerability from fkie_nvd - Published: 2021-07-02 17:15 - Updated: 2026-06-17 03:38

Severity

7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.

References

URL	Tags
report@snyk.io	https://github.com/BadOPCode/NoDash/blob/master/src/Merge.ts	Exploit, Third Party Advisory
report@snyk.io	https://snyk.io/vuln/SNYK-JS-TSNODASH-1311009	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/BadOPCode/NoDash/blob/master/src/Merge.ts	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://snyk.io/vuln/SNYK-JS-TSNODASH-1311009	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	ts-nodash_project	ts-nodash	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "ts-nodash",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "report@snyk.io"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ts-nodash_project:ts-nodash:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "B5578870-D91F-4059-AA2E-D29857009A6B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input."
    },
    {
      "lang": "es",
      "value": "Todas las versiones del paquete ts-nodash son vulnerables a una contaminaci\u00f3n de prototipos por medio de la funci\u00f3n Merge() debido a una falta de comprobaci\u00f3n de entrada"
    }
  ],
  "id": "CVE-2021-23403",
  "lastModified": "2026-06-17T03:38:41.927",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4,
        "source": "report@snyk.io",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-07-02T17:15:07.970",
  "references": [
    {
      "source": "report@snyk.io",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/BadOPCode/NoDash/blob/master/src/Merge.ts"
    },
    {
      "source": "report@snyk.io",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://snyk.io/vuln/SNYK-JS-TSNODASH-1311009"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/BadOPCode/NoDash/blob/master/src/Merge.ts"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://snyk.io/vuln/SNYK-JS-TSNODASH-1311009"
    }
  ],
  "sourceIdentifier": "report@snyk.io",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1321"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-23403 (GCVE-0-2021-23403)

Vulnerability from cvelistv5 – Published: 2021-07-02 16:10 – Updated: 2024-09-17 03:27

Title

Prototype Pollution

Summary

All versions of package ts-nodash are vulnerable to Prototype Pollution via the Merge() function due to lack of validation input.

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C

CWE

Prototype Pollution

Assigner

snyk mitre root

References

2 references

URL	Tags
https://snyk.io/vuln/SNYK-JS-TSNODASH-1311009	x_refsource_MISC
https://github.com/BadOPCode/NoDash/blob/master/s…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	ts-nodash	Affected: 0 , < unspecified (custom)

Date Public

2021-07-02 00:00

Credits

Dung Le

Show details on NVD website

JSON

To clipboard

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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://snyk.io/vuln/SNYK-JS-TSNODASH-1311009"
          },
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              "x_refsource_MISC",
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            ],
            "url": "https://github.com/BadOPCode/NoDash/blob/master/src/Merge.ts"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ts-nodash",
          "vendor": "n/a",
          "versions": [
            {
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            }
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      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "remediationLevel": "UNAVAILABLE",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.9,
            "temporalSeverity": "MEDIUM",
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C",
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          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
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              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-02T16:10:16.000Z",
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      "references": [
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          "url": "https://snyk.io/vuln/SNYK-JS-TSNODASH-1311009"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/BadOPCode/NoDash/blob/master/src/Merge.ts"
        }
      ],
      "title": "Prototype Pollution",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "report@snyk.io",
          "DATE_PUBLIC": "2021-07-02T16:05:10.086985Z",
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        "affects": {
          "vendor": {
            "vendor_data": [
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                "product": {
                  "product_data": [
                    {
                      "product_name": "ts-nodash",
                      "version": {
                        "version_data": [
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                            "version_affected": "\u003e=",
                            "version_value": "0"
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                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
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        "impact": {
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            "attackVector": "NETWORK",
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            "baseScore": 7.3,
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            "integrityImpact": "LOW",
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            "scope": "UNCHANGED",
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    "dateReserved": "2021-01-08T00:00:00.000Z",
    "dateUpdated": "2024-09-17T03:27:59.664Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.