CVE-2021-1684 (GCVE-0-2021-1684)

Vulnerability from cvelistv5 – Published: 2021-01-12 19:42 – Updated: 2024-10-08 16:17
VLAI?
Summary
Microsoft is aware of the "Impersonation in the Passkey Entry Protocol" vulnerability. For more information regarding the vulnerability, please see this statement from the Bluetooth SIG. To address the vulnerability, Microsoft has released a software update that will fail attempts to pair if the remote device exchanges a public key with the same X coordinate as the locally exchanged public key
Severity ?
5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
CWE
  • Security Feature Bypass
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 20H2 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_10_20H2:*:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_20H2:*:*:*:*:*:*:arm64:*
 Create a notification for this product.
    Microsoft Windows Server version 20H2 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_20H2:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows 10 Version 1803 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_1803:*:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_1803:*:*:*:*:*:*:arm64:*
 Create a notification for this product.
    Microsoft Windows 10 Version 1809 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:*
 Create a notification for this product.
    Microsoft Windows Server 2019 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows 10 Version 1909 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows Server, version 1909 (Server Core installation) Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows 10 Version 2004 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows Server version 2004 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows 10 Version 1507 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows 10 Version 1607 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows Server 2016 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows 8.1 Affected: 6.3.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows Server 2012 R2 Affected: 6.3.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows Server 2012 R2 (Server Core installation) Affected: 6.3.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
 Create a notification for this product.
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-1684\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2021-01-12T20:15:32.853\",\"lastModified\":\"2024-11-21T05:44:53.430\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Microsoft is aware of the \u0026quot;Impersonation in the Passkey Entry Protocol\u0026quot; vulnerability. For more information regarding the vulnerability, please see this\u202fstatement\u202ffrom the Bluetooth SIG.\\nTo address the vulnerability, Microsoft has released a software update that will fail attempts to pair if the remote device exchanges a public key with the same X coordinate as the locally exchanged public key\"},{\"lang\":\"es\",\"value\":\"Una Vulnerabilidad de Omisi\u00f3n de la Funcionalidad de Windows Bluetooth Security. Este ID de CVE es diferente de CVE-2021-1638, CVE-2021-1683\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N\",\"baseScore\":5.0,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.3,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:N/A:N\",\"baseScore\":2.1,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.9,\"impactScore\":2.9,\"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:o:microsoft:windows_10:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"21540673-614A-4D40-8BD7-3F07723803B0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9E2C378B-1507-4C81-82F6-9F599616845A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7CB85C75-4D35-480E-843D-60579EC75FCB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6B8F3DD2-A145-4AF1-8545-CC42892DA3D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E9273B95-20ED-4547-B0A8-95AD15B30372\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AAE74AF3-C559-4645-A6C0-25C3D647AAC8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E93068DB-549B-45AB-8E5C-00EB5D8B5CF8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C6CE5198-C498-4672-AF4C-77AB4BE06C5C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB18C4CE-5917-401E-ACF7-2747084FD36E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4A190388-AA82-4504-9D5A-624F23268C9F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C253A63F-03AB-41CB-A03A-B2674DEA98AA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0B60D940-80C7-49F0-8F4E-3F99AC15FA82\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB79EE26-FC32-417D-A49C-A1A63165A968\"}]}]}],\"references\":[{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1684\",\"source\":\"secure@microsoft.com\"},{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1684\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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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.