cve-2021-20077
Vulnerability from cvelistv5
Published
2021-03-19 18:46
Modified
2024-08-03 17:30
Severity ?
Summary
Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token.
Impacted products
Vendor Product Version
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:30:07.670Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.tenable.com/security/tns-2021-04-0"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.tenable.com/security/tns-2021-07"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.tenable.com/security/tns-2021-04-0"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Tenable Nessus Agent",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "7.2.0 through 8.2.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Privilege Escalation",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-09-23T13:48:31",
        "orgId": "5ac1ecc2-367a-4d16-a0b2-35d495ddd0be",
        "shortName": "tenable"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.tenable.com/security/tns-2021-04-0"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.tenable.com/security/tns-2021-07"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.tenable.com/security/tns-2021-04-0"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vulnreport@tenable.com",
          "ID": "CVE-2021-20077",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Tenable Nessus Agent",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "7.2.0 through 8.2.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Privilege Escalation"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.tenable.com/security/tns-2021-04-0",
              "refsource": "MISC",
              "url": "https://www.tenable.com/security/tns-2021-04-0"
            },
            {
              "name": "https://www.tenable.com/security/tns-2021-07",
              "refsource": "MISC",
              "url": "https://www.tenable.com/security/tns-2021-07"
            },
            {
              "name": "https://www.tenable.com/security/tns-2021-04-0",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2021-04-0"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "5ac1ecc2-367a-4d16-a0b2-35d495ddd0be",
    "assignerShortName": "tenable",
    "cveId": "CVE-2021-20077",
    "datePublished": "2021-03-19T18:46:43",
    "dateReserved": "2020-12-17T00:00:00",
    "dateUpdated": "2024-08-03T17:30:07.670Z",
    "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:tenable:nessus_agent:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"7.2.0\", \"versionEndExcluding\": \"8.2.3\", \"matchCriteriaId\": \"1F349161-FB60-4003-B328-6FD49D226195\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token.\"}, {\"lang\": \"es\", \"value\": \"Se encontr\\u00f3 que las versiones 7.2.0 a 8.2.2 del Agente Nessus capturan inadvertidamente el token de seguridad del rol IAM en el host local durante la vinculaci\\u00f3n inicial del Agente Nessus cuando se instala en una instancia de Amazon EC2. Esto podr\\u00eda permitir a un atacante privilegiado obtener el token\"}]",
      "id": "CVE-2021-20077",
      "lastModified": "2024-11-21T05:45:53.020",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 6.7, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 0.8, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:L/AC:L/Au:N/C:C/I:C/A:C\", \"baseScore\": 7.2, \"accessVector\": \"LOCAL\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"COMPLETE\", \"integrityImpact\": \"COMPLETE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 3.9, \"impactScore\": 10.0, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-03-19T19:15:13.497",
      "references": "[{\"url\": \"https://www.tenable.com/security/tns-2021-04-0\", \"source\": \"vulnreport@tenable.com\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://www.tenable.com/security/tns-2021-04-0\", \"source\": \"vulnreport@tenable.com\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://www.tenable.com/security/tns-2021-07\", \"source\": \"vulnreport@tenable.com\", \"tags\": [\"Not Applicable\", \"Vendor Advisory\"]}, {\"url\": \"https://www.tenable.com/security/tns-2021-04-0\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://www.tenable.com/security/tns-2021-04-0\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://www.tenable.com/security/tns-2021-07\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Not Applicable\", \"Vendor Advisory\"]}]",
      "sourceIdentifier": "vulnreport@tenable.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-20077\",\"sourceIdentifier\":\"vulnreport@tenable.com\",\"published\":\"2021-03-19T19:15:13.497\",\"lastModified\":\"2024-11-21T05:45:53.020\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token.\"},{\"lang\":\"es\",\"value\":\"Se encontr\u00f3 que las versiones 7.2.0 a 8.2.2 del Agente Nessus capturan inadvertidamente el token de seguridad del rol IAM en el host local durante la vinculaci\u00f3n inicial del Agente Nessus cuando se instala en una instancia de Amazon EC2. Esto podr\u00eda permitir a un atacante privilegiado obtener el token\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":6.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":7.2,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":3.9,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:tenable:nessus_agent:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.2.0\",\"versionEndExcluding\":\"8.2.3\",\"matchCriteriaId\":\"1F349161-FB60-4003-B328-6FD49D226195\"}]}]}],\"references\":[{\"url\":\"https://www.tenable.com/security/tns-2021-04-0\",\"source\":\"vulnreport@tenable.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2021-04-0\",\"source\":\"vulnreport@tenable.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2021-07\",\"source\":\"vulnreport@tenable.com\",\"tags\":[\"Not Applicable\",\"Vendor Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2021-04-0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2021-04-0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2021-07\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Not Applicable\",\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.
  • 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.