Vulnerability-Lookup

PYSEC-2021-119

Vulnerability from pysec - Published: 2021-08-09 21:15 - Updated: 2021-08-17 20:30

Details

23andMe Yamale before 3.0.8 allows remote attackers to execute arbitrary code via a crafted schema file. The schema parser uses eval as part of its processing, and tries to protect from malicious expressions by limiting the builtins that are passed to the eval. When processing the schema, each line is run through Python's eval function to make the validator available. A well-constructed string within the schema rules can execute system commands; thus, by exploiting the vulnerability, an attacker can run arbitrary code on the image that invokes Yamale.

Impacted products

Name	purl
yamale	pkg:pypi/yamale

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "yamale",
        "purl": "pkg:pypi/yamale"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.3",
        "1.10.0",
        "1.10.1",
        "1.2.0",
        "1.2.1",
        "1.3.0",
        "1.3.1",
        "1.4.0",
        "1.4.1",
        "1.5.0",
        "1.5.2",
        "1.5.3",
        "1.5.4",
        "1.5.5",
        "1.5.6",
        "1.6.0",
        "1.6.1",
        "1.6.2",
        "1.6.3",
        "1.6.4",
        "1.7.0",
        "1.7.1",
        "1.8.0",
        "1.8.1",
        "1.9.0",
        "2.0",
        "2.0.1",
        "2.1.0",
        "2.2.0",
        "3.0.0",
        "3.0.1",
        "3.0.2",
        "3.0.3",
        "3.0.4",
        "3.0.5",
        "3.0.6",
        "3.0.7"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-38305",
    "GHSA-435p-f82x-mxwm"
  ],
  "details": "23andMe Yamale before 3.0.8 allows remote attackers to execute arbitrary code via a crafted schema file. The schema parser uses eval as part of its processing, and tries to protect from malicious expressions by limiting the builtins that are passed to the eval. When processing the schema, each line is run through Python\u0027s eval function to make the validator available. A well-constructed string within the schema rules can execute system commands; thus, by exploiting the vulnerability, an attacker can run arbitrary code on the image that invokes Yamale.",
  "id": "PYSEC-2021-119",
  "modified": "2021-08-17T20:30:12.776802Z",
  "published": "2021-08-09T21:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/23andMe/Yamale/releases/tag/3.0.8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/23andMe/Yamale/pull/165"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-435p-f82x-mxwm"
    }
  ]
}

CVE-2021-38305 (GCVE-0-2021-38305)

Vulnerability from cvelistv5 – Published: 2021-08-09 20:48 – Updated: 2024-08-04 01:37

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/23andMe/Yamale/releases/tag/3.0.8	x_refsource_MISC
	https://github.com/23andMe/Yamale/pull/165	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:37:16.314Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/23andMe/Yamale/releases/tag/3.0.8"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/23andMe/Yamale/pull/165"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "23andMe Yamale before 3.0.8 allows remote attackers to execute arbitrary code via a crafted schema file. The schema parser uses eval as part of its processing, and tries to protect from malicious expressions by limiting the builtins that are passed to the eval. When processing the schema, each line is run through Python\u0027s eval function to make the validator available. A well-constructed string within the schema rules can execute system commands; thus, by exploiting the vulnerability, an attacker can run arbitrary code on the image that invokes Yamale."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-08-09T20:48:52",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/23andMe/Yamale/releases/tag/3.0.8"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/23andMe/Yamale/pull/165"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-38305",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "23andMe Yamale before 3.0.8 allows remote attackers to execute arbitrary code via a crafted schema file. The schema parser uses eval as part of its processing, and tries to protect from malicious expressions by limiting the builtins that are passed to the eval. When processing the schema, each line is run through Python\u0027s eval function to make the validator available. A well-constructed string within the schema rules can execute system commands; thus, by exploiting the vulnerability, an attacker can run arbitrary code on the image that invokes Yamale."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/23andMe/Yamale/releases/tag/3.0.8",
              "refsource": "MISC",
              "url": "https://github.com/23andMe/Yamale/releases/tag/3.0.8"
            },
            {
              "name": "https://github.com/23andMe/Yamale/pull/165",
              "refsource": "MISC",
              "url": "https://github.com/23andMe/Yamale/pull/165"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-38305",
    "datePublished": "2021-08-09T20:48:52",
    "dateReserved": "2021-08-09T00:00:00",
    "dateUpdated": "2024-08-04T01:37:16.314Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-435P-F82X-MXWM

Vulnerability from github – Published: 2021-08-11 15:19 – Updated: 2024-11-19 18:25

Summary

Command injection in Yamale

Details

Severity ?

7.8 (High)


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

8.5 (High)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "yamale"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-38305"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-434",
      "CWE-78"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-10T17:33:14Z",
    "nvd_published_at": "2021-08-09T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "23andMe Yamale before 3.0.8 allows remote attackers to execute arbitrary code via a crafted schema file. The schema parser uses eval as part of its processing, and tries to protect from malicious expressions by limiting the builtins that are passed to the eval. When processing the schema, each line is run through Python\u0027s eval function to make the validator available. A well-constructed string within the schema rules can execute system commands; thus, by exploiting the vulnerability, an attacker can run arbitrary code on the image that invokes Yamale.",
  "id": "GHSA-435p-f82x-mxwm",
  "modified": "2024-11-19T18:25:44Z",
  "published": "2021-08-11T15:19:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38305"
    },
    {
      "type": "WEB",
      "url": "https://github.com/23andMe/Yamale/pull/165"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/23andMe/Yamale"
    },
    {
      "type": "WEB",
      "url": "https://github.com/23andMe/Yamale/releases/tag/3.0.8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/yamale/PYSEC-2021-119.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Command injection in Yamale"
}

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

PYSEC-2021-119

CVE-2021-38305 (GCVE-0-2021-38305)

GHSA-435P-F82X-MXWM

Tags

Sightings

Nomenclature