Vulnerability-Lookup

GHSA-R28H-X6HV-2FQ3

Vulnerability from github – Published: 2021-11-10 20:48 – Updated: 2025-01-20 16:11

Summary

Improper Verification of Cryptographic Signature in starkbank-ecdsa

Details

The verify function in the Stark Bank Java ECDSA library (ecdsa-java) 1.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.

Severity ?

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.starkbank.ellipticcurve:starkbank-ecdsa"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-43570"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-11-10T18:25:02Z",
    "nvd_published_at": "2021-11-09T22:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "The verify function in the Stark Bank Java ECDSA library (ecdsa-java) 1.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.",
  "id": "GHSA-r28h-x6hv-2fq3",
  "modified": "2025-01-20T16:11:28Z",
  "published": "2021-11-10T20:48:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43570"
    },
    {
      "type": "WEB",
      "url": "https://github.com/starkbank/ecdsa-java/pull/16"
    },
    {
      "type": "WEB",
      "url": "https://github.com/starkbank/ecdsa-java/commit/ed22e484186d6c66d3686bfe39d01bdbabf219b6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/starkbank/ecdsa-java"
    },
    {
      "type": "WEB",
      "url": "https://github.com/starkbank/ecdsa-java/releases/tag/v1.0.1"
    },
    {
      "type": "WEB",
      "url": "https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper Verification of Cryptographic Signature in starkbank-ecdsa"
}

CVE-2021-43570 (GCVE-0-2021-43570)

Vulnerability from cvelistv5 – Published: 2021-11-09 21:05 – Updated: 2024-08-04 04:03

Summary

The verify function in the Stark Bank Java ECDSA library (ecdsa-java) 1.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://research.nccgroup.com/2021/11/08/technica…	x_refsource_MISC
	https://github.com/starkbank/ecdsa-java/releases/…	x_refsource_MISC

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:03:07.993Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/starkbank/ecdsa-java/releases/tag/v1.0.1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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      ],
      "descriptions": [
        {
          "lang": "en",
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        }
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      "problemTypes": [
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          "descriptions": [
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              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-11-09T21:05:46",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
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            "x_refsource_MISC"
          ],
          "url": "https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/starkbank/ecdsa-java/releases/tag/v1.0.1"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-43570",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
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                      }
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                },
                "vendor_name": "n/a"
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        },
        "references": {
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            },
            {
              "name": "https://github.com/starkbank/ecdsa-java/releases/tag/v1.0.1",
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              "url": "https://github.com/starkbank/ecdsa-java/releases/tag/v1.0.1"
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      }
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "datePublished": "2021-11-09T21:05:46",
    "dateReserved": "2021-11-09T00:00:00",
    "dateUpdated": "2024-08-04T04:03:07.993Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-R28H-X6HV-2FQ3

CVE-2021-43570 (GCVE-0-2021-43570)

Tags

Sightings

Nomenclature