VMware vCenter Server 6.5/6.7/7.0 Virtual SAN Health Check Plug-In improper authentication
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.0 | $0-$5k | 0.00 |
A vulnerability was found in VMware vCenter Server 6.5/6.7/7.0 (Server Management Software). It has been rated as critical. Affected by this issue is an unknown part of the component Virtual SAN Health Check Plug-In. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability.
The weakness was published 05/26/2021 as VMSA-2021-0010/KB83829. The advisory is available at vmware.com. This vulnerability is handled as CVE-2021-21985. Technical details are unknown but a public exploit is available.
A public exploit has been developed by alt3kx in NSE/LUA and been published 5 days after the advisory. The exploit is available at github.com. It is declared as highly functional. As 0-day the estimated underground price was around $5k-$25k. This issue was added on 11/03/2021 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 11/17/2021:
Apply updates per vendor instructions.
Applying the patch 6.5 U3p/6.7 U3n/7.0 U2b is able to eliminate this problem. The bugfix is ready for download at docs.vmware.com.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.0
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Improper authenticationCWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Highly functional
Author: alt3kx
Programming Language: 🔍
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Exploit Delay Time: 🔍
Patch: 6.5 U3p/6.7 U3n/7.0 U2b
Timeline
01/04/2021 🔍05/26/2021 🔍
05/26/2021 🔍
05/31/2021 🔍
04/21/2024 🔍
Sources
Vendor: vmware.comAdvisory: VMSA-2021-0010/KB83829
Status: Confirmed
CVE: CVE-2021-21985 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20060413
Entry
Created: 05/26/2021 19:04Updated: 04/21/2024 09:52
Changes: 05/26/2021 19:04 (41), 05/29/2021 14:40 (5), 06/05/2021 22:23 (8), 04/21/2024 09:52 (25)
Complete: 🔍
Submitter: Hardcoders
Committer: misc
Cache ID: 3:03A:103
Submit
Accepted
- Submit #13421: VMware vCenter Server remote code execution and authentication vulnerabilities (CVE-2021-21985, CVE-2021-21986) (by Hardcoders)
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