VulnerabilityAnalyzed
CVE-2021-22005
VMware vCenter Server File Upload Vulnerability
KEVCRITICAL 9.8EPSS 100.0%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 17 November 2021). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
The vCenter Server contains an arbitrary file upload vulnerability in the Analytics service. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to execute code on vCenter Server by uploading a specially crafted file.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 100.00% probability · 100th percentile
- CISA KEV
- Listed 3 November 2021 · due 17 November 2021 · used in ransomware campaigns
- Weakness
- CWE-22
- Affected
- vmware/cloud foundation · vmware/vcenter server
- Source
- security@vmware.com
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-22005
References
- http://packetstormsecurity.com/files/164439/VMware-vCenter-Server-Analytics-CEIP-Service-File-Upload.htmlExploit, Third Party Advisory, VDB Entry
- https://www.vmware.com/security/advisories/VMSA-2021-0020.htmlPatch, Vendor Advisory
- http://packetstormsecurity.com/files/164439/VMware-vCenter-Server-Analytics-CEIP-Service-File-Upload.htmlExploit, Third Party Advisory, VDB Entry
- https://www.vmware.com/security/advisories/VMSA-2021-0020.htmlPatch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22005US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.