// For flags

CVE-2021-21991

 

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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).

vCenter Server contiene una vulnerabilidad de escalada de privilegios local debido a la forma en que maneja los tokens de sesiĆ³n. Un actor malicioso con acceso de usuario no administrativo en el host de vCenter Server puede explotar este problema para escalar los privilegios a administrador en vSphere Client (HTML5) o vCenter Server vSphere Web Client (FLEX/Flash)

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-04 CVE Reserved
  • 2021-09-22 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Vmware
Search vendor "Vmware"
Cloud Foundation
Search vendor "Vmware" for product "Cloud Foundation"
>= 3.0 < 3.10.2.2
Search vendor "Vmware" for product "Cloud Foundation" and version " >= 3.0 < 3.10.2.2"
-
Affected
Vmware
Search vendor "Vmware"
Cloud Foundation
Search vendor "Vmware" for product "Cloud Foundation"
>= 4.0 < 4.3
Search vendor "Vmware" for product "Cloud Foundation" and version " >= 4.0 < 4.3"
-
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
-
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
a
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
b
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
c
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
d
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
e
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
f
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update1
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update1b
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update1c
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update1d
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update1e
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update1g
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update2
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update2b
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update2c
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update2d
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update2g
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update3
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update3d
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update3f
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update3k
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update3n
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
update3p
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
-
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
-
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
a
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
b
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
d
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update1
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update1b
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update2
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update2a
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update2c
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update3
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update3a
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update3b
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update3f
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update3g
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update3j
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update3l
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update3m
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
update3n
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
-
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
a
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
b
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
c
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
d
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
update1
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
update1a
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
update1c
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
update1d
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
update2
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
update2a
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
update2b
Affected