CVE-2021-21992 (GCVE-0-2021-21992)

Vulnerability from cvelistv5 – Published: 2021-09-22 18:59 – Updated: 2024-08-03 18:30
VLAI?
Summary
The vCenter Server contains a denial-of-service vulnerability due to improper XML entity parsing. A malicious actor with non-administrative user access to the vCenter Server vSphere Client (HTML5) or vCenter Server vSphere Web Client (FLEX/Flash) may exploit this issue to create a denial-of-service condition on the vCenter Server host.
Severity ?
No CVSS data available.
CWE
  • XML parsing denial-of-service vulnerability
Assigner
References
Impacted products
Vendor Product Version
n/a VMware vCenter Server, VMware Cloud Foundation Affected: VMware vCenter Server(7.x before 7.0 U2c, 6.7 before 6.7 U3o and 6.5 before 6.5 U3q) and VMware Cloud Foundation (4.x before 4.3 and 3.x before 3.10.2.2)
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Server\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:N/I:N/A:C\",\"baseScore\":6.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":6.9,\"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:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.0\",\"versionEndExcluding\":\"3.10.2.2\",\"matchCriteriaId\":\"127DEE95-0B04-4A98-B96A-15CC253C7357\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.0\",\"versionEndExcluding\":\"4.3\",\"matchCriteriaId\":\"722CF000-C0A1-4704-BDC6-3446D1530F3B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"23CFE5A5-A166-4FD5-BE97-5F16DAB1EAE0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:a:*:*:*:*:*:*\",\"matchCriteriaId\":\"CF7DDB0C-3C07-4B5E-8B8A-0542FEE72877\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:b:*:*:*:*:*:*\",\"matchCriteriaId\":\"1DD16169-A7DF-4604-888C-156A60018E32\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:c:*:*:*:*:*:*\",\"matchCriteriaId\":\"46FC9F34-C8FA-4AFE-9F4A-7CF9516BD4D9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:d:*:*:*:*:*:*\",\"matchCriteriaId\":\"D26534EB-327B-4ED6-A3E1-005552CB1F9D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:e:*:*:*:*:*:*\",\"matchCriteriaId\":\"786CDD50-7E18-4437-8DB9-2D0ADECD436E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:f:*:*:*:*:*:*\",\"matchCriteriaId\":\"B2CE8DAE-0E78-4004-983D-1ECD8855EC33\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7E51F433-1152-4E94-AF77-970230B1A574\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update1b:*:*:*:*:*:*\",\"matchCriteriaId\":\"0064D104-E0D8-481A-9029-D3726A1A9CF4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update1c:*:*:*:*:*:*\",\"matchCriteriaId\":\"9B4D3F61-6CD9-411F-A205-EB06A57EBB4E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update1d:*:*:*:*:*:*\",\"matchCriteriaId\":\"F72A1E9C-F960-4E8C-A46C-B38209E6349E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update1e:*:*:*:*:*:*\",\"matchCriteriaId\":\"2C33CE46-F529-4EA9-9344-6ED3BFA7019D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update1g:*:*:*:*:*:*\",\"matchCriteriaId\":\"9F1D8161-0E02-45C9-BF61-14799AB65E03\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update2:*:*:*:*:*:*\",\"matchCriteriaId\":\"1F2CB1FF-6118-4875-945D-07BAA3A21FFA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update2b:*:*:*:*:*:*\",\"matchCriteriaId\":\"1AEDA28A-5C8E-4E95-A377-3BE530DBEAB5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update2c:*:*:*:*:*:*\",\"matchCriteriaId\":\"BDDC6510-3116-4578-80C8-8EF044A8370A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update2d:*:*:*:*:*:*\",\"matchCriteriaId\":\"8678DB48-CB98-4E4C-ADE6-CABA73265FEC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update2g:*:*:*:*:*:*\",\"matchCriteriaId\":\"DBD9A341-1FBF-4E04-848B-550DEB27261A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update3:*:*:*:*:*:*\",\"matchCriteriaId\":\"4955663C-1BB6-4F3E-9D4B-362DF144B7F1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update3d:*:*:*:*:*:*\",\"matchCriteriaId\":\"CE0F8453-3D6C-4F1C-9167-3F02E3D905DC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:vmware:vcenter_server:6.5:update3f:*:*:*:*:*:*\",\"matchCriteriaId\":\"0EAD4045-A7F9-464F-ABB9-3782941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"cpe:2.3:a:vmware:vcenter_server:7.0:update2b:*:*:*:*:*:*\",\"matchCriteriaId\":\"8D30A78E-16D0-4A2E-A2F8-F6073698243E\"}]}]}],\"references\":[{\"url\":\"https://www.vmware.com/security/advisories/VMSA-2021-0020.html\",\"source\":\"security@vmware.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.vmware.com/security/advisories/VMSA-2021-0020.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


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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.