CVE-2020-14343 (GCVE-0-2020-14343)

Vulnerability from cvelistv5 – Published: 2021-02-09 00:00 – Updated: 2024-08-04 12:39
VLAI?
Summary
A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.
Severity ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a PyYAML Affected: PyYAML 5.4
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T12:39:36.530Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/yaml/pyyaml/issues/420"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1860466"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/SeldonIO/seldon-core/issues/2252"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "PyYAML",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "PyYAML 5.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-07-06T00:00:00",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://github.com/yaml/pyyaml/issues/420"
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1860466"
        },
        {
          "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
        },
        {
          "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
        },
        {
          "url": "https://github.com/SeldonIO/seldon-core/issues/2252"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2020-14343",
    "datePublished": "2021-02-09T00:00:00",
    "dateReserved": "2020-06-17T00:00:00",
    "dateUpdated": "2024-08-04T12:39:36.530Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.1\", \"versionEndExcluding\": \"5.4\", \"matchCriteriaId\": \"5B49BB31-68E9-4F02-8D00-925418F7372C\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"C2A5B24D-BDF2-423C-98EA-A40778C01A05\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"04E6C8E9-2024-496C-9BFD-4548A5B44E2E\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.\"}, {\"lang\": \"es\", \"value\": \"Se detect\\u00f3 una vulnerabilidad en la biblioteca PyYAML en versiones anteriores a 5.4, donde es susceptible una ejecuci\\u00f3n de c\\u00f3digo arbitrario cuando se procesan archivos YAML no confiables por medio del m\\u00e9todo full_load o con el cargador FullLoader.\u0026#xa0;Unas aplicaciones que usan la biblioteca para procesar entradas que no son confiables pueden ser vulnerables a este fallo.\u0026#xa0;Este fallo le permite a un atacante ejecutar c\\u00f3digo arbitrario en el sistema abusando del constructor python/object/new.\u0026#xa0;Este fallo se debe a una correcci\\u00f3n incompleta para CVE-2020-1747\"}]",
      "id": "CVE-2020-14343",
      "lastModified": "2024-11-21T05:03:03.217",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:C/I:C/A:C\", \"baseScore\": 10.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"COMPLETE\", \"integrityImpact\": \"COMPLETE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 10.0, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-02-09T21:15:12.707",
      "references": "[{\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1860466\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Issue Tracking\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/SeldonIO/seldon-core/issues/2252\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"https://github.com/yaml/pyyaml/issues/420\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"https://www.oracle.com/security-alerts/cpuapr2022.html\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://www.oracle.com/security-alerts/cpujul2022.html\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1860466\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/SeldonIO/seldon-core/issues/2252\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://github.com/yaml/pyyaml/issues/420\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://www.oracle.com/security-alerts/cpuapr2022.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://www.oracle.com/security-alerts/cpujul2022.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"secalert@redhat.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-14343\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2021-02-09T21:15:12.707\",\"lastModified\":\"2024-11-21T05:03:03.217\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.\"},{\"lang\":\"es\",\"value\":\"Se detect\u00f3 una vulnerabilidad en la biblioteca PyYAML en versiones anteriores a 5.4, donde es susceptible una ejecuci\u00f3n de c\u00f3digo arbitrario cuando se procesan archivos YAML no confiables por medio del m\u00e9todo full_load o con el cargador FullLoader.\u0026#xa0;Unas aplicaciones que usan la biblioteca para procesar entradas que no son confiables pueden ser vulnerables a este fallo.\u0026#xa0;Este fallo le permite a un atacante ejecutar c\u00f3digo arbitrario en el sistema abusando del constructor python/object/new.\u0026#xa0;Este fallo se debe a una correcci\u00f3n incompleta para CVE-2020-1747\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":10.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.1\",\"versionEndExcluding\":\"5.4\",\"matchCriteriaId\":\"5B49BB31-68E9-4F02-8D00-925418F7372C\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C2A5B24D-BDF2-423C-98EA-A40778C01A05\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"04E6C8E9-2024-496C-9BFD-4548A5B44E2E\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1860466\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/SeldonIO/seldon-core/issues/2252\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://github.com/yaml/pyyaml/issues/420\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://www.oracle.com/security-alerts/cpuapr2022.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpujul2022.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1860466\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/SeldonIO/seldon-core/issues/2252\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://github.com/yaml/pyyaml/issues/420\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.oracle.com/security-alerts/cpuapr2022.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpujul2022.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.