VMware vCenter Server Session Token access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in VMware vCenter Server and classified as critical. The affected element is an unknown function of the component Session Token Handler. The manipulation results in access control. This vulnerability is reported as CVE-2021-21991. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in VMware vCenter Server (Server Management Software) (the affected version is unknown). Affected is an unknown code of the component Session Token Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 09/23/2021 as VMSA-2021-0020. The advisory is available at vmware.com. This vulnerability is traded as CVE-2021-21991 since 01/04/2021. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/04/2021 🔍
09/23/2021 +261 days 🔍
09/23/2021 +0 days 🔍
10/01/2021 +8 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: VMSA-2021-0020
Status: Confirmed

CVE: CVE-2021-21991 (🔍)
GCVE (CVE): GCVE-0-2021-21991
GCVE (VulDB): GCVE-100-183222
scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfo

Created: 09/23/2021 05:37
Updated: 10/01/2021 12:16
Changes: 09/23/2021 05:37 (39), 10/01/2021 12:16 (1)
Complete: 🔍
Cache ID: 216::103

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