pysec - pysec-2020-147

pysec-2020-147

Vulnerability from pysec

Published

2020-02-05 16:15

Modified

2020-02-07 19:19

Details

TUF (aka The Update Framework) through 0.12.1 has Improper Verification of a Cryptographic Signature.

Impacted products

Name	purl
tuf	pkg:pypi/tuf

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "tuf",
        "purl": "pkg:pypi/tuf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.12.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.7.5",
        "0.9.8",
        "0.9.9",
        "0.10.0",
        "0.10.1",
        "0.10.2",
        "0.11.dev0",
        "0.11.0",
        "0.11.1",
        "0.11.2.dev1",
        "0.11.2.dev2",
        "0.11.2.dev3",
        "0.12.dev0",
        "0.12.dev1",
        "0.12.dev2",
        "0.12.0",
        "0.12.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-6174",
    "GHSA-pwqf-9h7j-7mv8"
  ],
  "details": "TUF (aka The Update Framework) through 0.12.1 has Improper Verification of a Cryptographic Signature.",
  "id": "PYSEC-2020-147",
  "modified": "2020-02-07T19:19:00Z",
  "published": "2020-02-05T16:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/theupdateframework/tuf/pull/974"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-pwqf-9h7j-7mv8"
    }
  ]
}

ghsa-pwqf-9h7j-7mv8

Vulnerability from github

Published

2020-08-21 16:25

Modified

2024-11-18 22:40

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Summary

Incorrect threshold signature computation in TUF

Details

Impact

Metadadata signature verification, as used in tuf.client.updater, counted each of multiple signatures with identical authorized keyids separately towards the threshold. Therefore, an attacker with access to a valid signing key could create multiple valid signatures in order to meet the minimum threshold of keys before the metadata was considered valid.

The tuf maintainers would like to thank Erik MacLean of Analog Devices, Inc. for reporting this issue.

Patches

A fix is available in version 0.12.2 or newer.

Workarounds

No workarounds are known for this issue.

References

CVE-2020-6174
Pull request resolving the issue PR 974

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "tuf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.12.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-6174"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-08-21T16:25:02Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "### Impact\nMetadadata signature verification, as used in `tuf.client.updater`, counted each of multiple signatures with identical authorized keyids  separately towards the threshold. Therefore, an attacker with access to a valid signing key could create multiple valid signatures in order to meet the minimum threshold of keys before the metadata was considered valid.\n\nThe tuf maintainers would like to thank Erik MacLean of Analog Devices, Inc. for reporting this issue.\n\n### Patches\nA [fix](https://github.com/theupdateframework/tuf/pull/974) is available in version [0.12.2](https://github.com/theupdateframework/tuf/releases/tag/v0.12.2) or newer.\n\n### Workarounds\nNo workarounds are known for this issue.\n\n### References\n* [CVE-2020-6174](https://nvd.nist.gov/vuln/detail/CVE-2020-6174)\n* Pull request resolving the issue [PR 974](https://github.com/theupdateframework/tuf/pull/974)",
  "id": "GHSA-pwqf-9h7j-7mv8",
  "modified": "2024-11-18T22:40:36Z",
  "published": "2020-08-21T16:25:26Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/theupdateframework/tuf/security/advisories/GHSA-pwqf-9h7j-7mv8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6174"
    },
    {
      "type": "WEB",
      "url": "https://github.com/theupdateframework/tuf/pull/974"
    },
    {
      "type": "WEB",
      "url": "https://github.com/theupdateframework/python-tuf/commit/2977188139d065ff3356c3cb4aec60c582b57e0e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/tuf/PYSEC-2020-147.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/theupdateframework/tuf"
    },
    {
      "type": "WEB",
      "url": "https://github.com/theupdateframework/tuf/releases/tag/v0.12.2"
    }
  ],
  "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"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Incorrect threshold signature computation in TUF"
}

CVE-2020-6174 (GCVE-0-2020-6174)

Vulnerability from cvelistv5

Published

2020-02-05 15:49

Modified

2024-08-04 08:55

Severity ?

CWE

Summary

TUF (aka The Update Framework) through 0.12.1 has Improper Verification of a Cryptographic Signature.

References

URL

Tags

https://github.com/theupdateframework/tuf/pull/974

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T08:55:22.406Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/theupdateframework/tuf/pull/974"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2020-01-10T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "TUF (aka The Update Framework) through 0.12.1 has Improper Verification of a Cryptographic Signature."
        }
      ],
      "problemTypes": [
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              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2020-02-05T15:49:15",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/theupdateframework/tuf/pull/974"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-6174",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
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                          {
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    "dateReserved": "2020-01-08T00:00:00",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

pysec-2020-147

Vulnerability from pysec

ghsa-pwqf-9h7j-7mv8

Vulnerability from github

Impact

Patches

Workarounds

References

CVE-2020-6174 (GCVE-0-2020-6174)

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature