CVE-2021-21991
published 2021-09-22CVE-2021-21991: The vCenter Server contains a local privilege escalation vulnerability due to the way it handles session tokens. A malicious actor with non-administrative user…
PriorityP340high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.32%
23.7th percentile
The vCenter Server contains a local privilege escalation vulnerability due to the way it handles session tokens. A malicious actor with non-administrative user access on vCenter Server host may exploit this issue to escalate privileges to Administrator on the vSphere Client (HTML5) or vCenter Server vSphere Web Client (FLEX/Flash).
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| vmware | cloud_foundation | >= 3.0 < 3.10.2.2 | 3.10.2.2 |
| vmware | cloud_foundation | >= 4.0 < 4.3 | 4.3 |
| vmware | vcenter_server | — | — |
| vmware | vcenter_server | — | — |
| vmware | vcenter_server | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
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GHSA
GHSA-h338-w3fh-545j: The vCenter Server contains a local privilege escalation vulnerability due to the way it handles session tokens
ghsa_unreviewed·2022-05-24
CVE-2021-21991 [HIGH] CWE-269 GHSA-h338-w3fh-545j: The vCenter Server contains a local privilege escalation vulnerability due to the way it handles session tokens
The vCenter Server contains a local privilege escalation vulnerability due to the way it handles session tokens. A malicious actor with non-administrative user access on vCenter Server host may exploit this issue to escalate privileges to Administrator on the vSphere Client (HTML5) or vCenter Server vSphere Web Client (FLEX/Flash).
VMware
VMware vCenter Server updates address multiple security vulnerabilities
vendor_vmware·2021-09-21·CVSS 7.8
CVE-2021-21991 [HIGH] VMware vCenter Server updates address multiple security vulnerabilities
VMSA-2021-0020: VMware vCenter Server updates address multiple security vulnerabilities
The vCenter Server contains an arbitrary file upload vulnerability in the Analytics service. VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 9.8.
CVEs: CVE-2021-21991, CVE-2021-21992, CVE-2021-21993, CVE-2021-22005, CVE-2021-22006, CVE-2021-22007, CVE-2021-22008, CVE-2021-22009, CVE-2021-22010, CVE-2021-22011, CVE-2021-22012, CVE-2021-22013, CVE-2021-22014, CVE-2021-22015, CVE-2021-22016, CVE-2021-22017, CVE-2021-22018, CVE-2021-22019, CVE-2021-22020
Affected products: VMware Cloud Foundation, VMware vCenter Server, VMware vSphere
No detection rules found.
No public exploits indexed.
2021-09-22
Published