CVE-2021-3560
Vulnerability from cvelistv5
Published
2022-02-16 00:00
Modified
2024-08-03 17:01
Severity ?
Summary
It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References
secalert@redhat.comhttp://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.htmlThird Party Advisory, VDB Entry
secalert@redhat.comhttp://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.htmlThird Party Advisory, VDB Entry
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1961710Issue Tracking, Patch, Vendor Advisory
secalert@redhat.comhttps://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1961710Issue Tracking, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/Exploit, Third Party Advisory
Impacted products
Vendor Product Version
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog

Date added: 2023-05-12

Due date: 2023-06-02

Required action: Apply updates per vendor instructions.

Used in ransomware: Unknown

Notes: https://bugzilla.redhat.com/show_bug.cgi?id=1961710; https://nvd.nist.gov/vuln/detail/CVE-2021-3560

Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:01:06.571Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1961710"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "polkit",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "polkit 0.119"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-12T00:00:00",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1961710"
        },
        {
          "url": "https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/"
        },
        {
          "url": "http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html"
        },
        {
          "url": "http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-3560",
    "datePublished": "2022-02-16T00:00:00",
    "dateReserved": "2021-05-20T00:00:00",
    "dateUpdated": "2024-08-03T17:01:06.571Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "cisa_known_exploited": {
      "cveID": "CVE-2021-3560",
      "cwes": "[\"CWE-863\"]",
      "dateAdded": "2023-05-12",
      "dueDate": "2023-06-02",
      "knownRansomwareCampaignUse": "Unknown",
      "notes": "https://bugzilla.redhat.com/show_bug.cgi?id=1961710; https://nvd.nist.gov/vuln/detail/CVE-2021-3560",
      "product": "Polkit",
      "requiredAction": "Apply updates per vendor instructions.",
      "shortDescription": "Red Hat Polkit contains an incorrect authorization vulnerability through the bypassing of credential checks for D-Bus requests, allowing for privilege escalation.",
      "vendorProject": "Red Hat",
      "vulnerabilityName": "Red Hat Polkit Incorrect Authorization Vulnerability"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-3560\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2022-02-16T19:15:08.450\",\"lastModified\":\"2024-11-21T06:21:50.987\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.\"},{\"lang\":\"es\",\"value\":\"Se ha detectado que polkit pod\u00eda ser enga\u00f1ado para omitir las comprobaciones de credenciales para las peticiones de D-Bus, elevando los privilegios del solicitante al usuario root. Este fallo podr\u00eda ser usado por un atacante local no privilegiado para, por ejemplo, crear un nuevo administrador local. La mayor amenaza de esta vulnerabilidad es para la confidencialidad e integridad de los datos, as\u00ed como para la disponibilidad del sistema\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"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}]},\"cisaExploitAdd\":\"2023-05-12\",\"cisaActionDue\":\"2023-06-02\",\"cisaRequiredAction\":\"Apply updates per vendor instructions.\",\"cisaVulnerabilityName\":\"Red Hat Polkit Incorrect Authorization Vulnerability\",\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-863\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-754\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:polkit_project:polkit:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"0.119\",\"matchCriteriaId\":\"771AB1EA-D17C-4DFC-9A97-B197F1771818\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8E442013-EBF8-44F2-AAAA-B23816F3230E\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6BBD7A51-0590-4DDF-8249-5AFA8D645CB6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BB28F9AF-3D06-4532-B397-96D7E4792503\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F4CFF558-3C47-480D-A2F0-BABF26042943\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:openshift_container_platform:4.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"14CF53D2-B585-4EA5-8F18-21BC9ECBB4B6\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"142AD0DD-4CF3-4D74-9442-459CE3347E3A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F4CFF558-3C47-480D-A2F0-BABF26042943\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1961710\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1961710\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"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 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.