Vulnerability-Lookup

FKIE_CVE-2021-30246

Vulnerability from fkie_nvd - Published: 2021-04-07 21:15 - Updated: 2026-06-22 03:18

Severity

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

Summary

In the jsrsasign package through 10.1.13 for Node.js, some invalid RSA PKCS#1 v1.5 signatures are mistakenly recognized to be valid. NOTE: there is no known practical attack.

References

URL	Tags
cve@mitre.org	https://github.com/kjur/jsrsasign/issues/478	Third Party Advisory
cve@mitre.org	https://github.com/kjur/jsrsasign/releases/tag/10.1.13	Release Notes, Third Party Advisory
cve@mitre.org	https://kjur.github.io/jsrsasign/	Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/kjur/jsrsasign/issues/478	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/kjur/jsrsasign/releases/tag/10.1.13	Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://kjur.github.io/jsrsasign/	Release Notes, Third Party Advisory

Impacted products

	Vendor	Product	Version
	kjur	jsrsasign	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:kjur:jsrsasign:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "2FC67A56-D1ED-4571-A05F-25CA7946007B",
              "versionEndIncluding": "10.1.13",
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the jsrsasign package through 10.1.13 for Node.js, some invalid RSA PKCS#1 v1.5 signatures are mistakenly recognized to be valid. NOTE: there is no known practical attack."
    },
    {
      "lang": "es",
      "value": "En el paquete jsrsasign versiones hasta 10.1.13 para Node.js, algunas firmas RSA PKCS#1 v1.5, firmas son err\u00f3neamente reconocidas como v\u00e1lidas.\u0026#xa0;NOTA: No es conocido un ataque pr\u00e1ctico"
    }
  ],
  "id": "CVE-2021-30246",
  "lastModified": "2026-06-22T03:18:31.867",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 6.4,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 9.1,
          "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:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-04-07T21:15:16.153",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/kjur/jsrsasign/issues/478"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/kjur/jsrsasign/releases/tag/10.1.13"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
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      "url": "https://kjur.github.io/jsrsasign/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://kjur.github.io/jsrsasign/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-30246 (GCVE-0-2021-30246)

Vulnerability from cvelistv5 – Published: 2021-04-07 20:11 – Updated: 2024-08-03 22:24

Summary

In the jsrsasign package through 10.1.13 for Node.js, some invalid RSA PKCS#1 v1.5 signatures are mistakenly recognized to be valid. NOTE: there is no known practical attack.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://kjur.github.io/jsrsasign/	x_refsource_MISC
https://github.com/kjur/jsrsasign/issues/478	x_refsource_MISC
https://github.com/kjur/jsrsasign/releases/tag/10.1.13	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-03T22:24:59.577Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            ],
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          },
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            ],
            "url": "https://github.com/kjur/jsrsasign/releases/tag/10.1.13"
          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
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          "vendor": "n/a",
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          ],
          "url": "https://github.com/kjur/jsrsasign/releases/tag/10.1.13"
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      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-30246",
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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.