CVE-2021-21985
Quick assessment
Affected
n/a VMware vCenter Server and VMware Cloud Foundation
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Vmware vSphere Client是美国威睿（Vmware）公司的一个应用软件。提供虚拟化管理。 Vmware vSphere Client 存在输入验证错误漏洞，该漏洞由于vCenter Server默认启用的虚拟SAN健康检查插件缺乏输入验证，导致攻击者可以在底层操作系统上以不受限制的权限执行命令。
Public Exploits 2
Metasploit · 1
vmware_vcenter_vsan_health_rce.rb [exploit]
Nuclei · 1
CVE-2021-21985.yaml [template]
In-the-Wild Activity Observed
cisa_kev · confirmed
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | VMware vCenter Server and VMware Cloud Foundation | VMware vCenter Server (7.x before 7.0 U2b, 6.7 before 6.7 U3n, 6.5 before 6.5 U3p) and VMware Cloud |
affected |
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I. Basic Information for CVE-2021-21985
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Vmware vSphere Client 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vmware vSphere Client是美国威睿（Vmware）公司的一个应用软件。提供虚拟化管理。 Vmware vSphere Client 存在输入验证错误漏洞，该漏洞由于vCenter Server默认启用的虚拟SAN健康检查插件缺乏输入验证，导致攻击者可以在底层操作系统上以不受限制的权限执行命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | VMware vCenter Server and VMware Cloud Foundation | VMware vCenter Server (7.x before 7.0 U2b, 6.7 before 6.7 U3n, 6.5 before 6.5 U3p) and VMware Cloud Foundation (4.x before 4.2.1, 3.x before 3.10.2.1) | - |
|
II. Public POCs for CVE-2021-21985
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Multiple vulnerabilities in the vSphere Client (HTML5) were privately reported to VMware. Updates and workarounds are available to address these vulnerabilities in affected VMware products. | https://github.com/bigbroke/CVE-2021-21985 | POC Details |
| 2 | None | https://github.com/alt3kx/CVE-2021-21985_PoC | POC Details |
| 3 | CVE-2021-21985 Checker. | https://github.com/onSec-fr/CVE-2021-21985-Checker | POC Details |
| 4 | This script check the CVE-2021-21985 vulnerability and patch on vCenter Server. | https://github.com/mauricelambert/CVE-2021-21985 | POC Details |
| 5 | cve-2021-21985 exploit | https://github.com/xnianq/cve-2021-21985_exp | POC Details |
| 6 | CVE-2021-21985 vmware 6.7-9.8 RCE | https://github.com/daedalus/CVE-2021-21985 | POC Details |
| 7 | None | https://github.com/testanull/Project_CVE-2021-21985_PoC | POC Details |
| 8 | None | https://github.com/haiclover/CVE-2021-21985 | POC Details |
| 9 | cve-2021-21985 powershell poc | https://github.com/aristosMiliaressis/CVE-2021-21985 | POC Details |
| 10 | VMWARE VCENTER SERVER VIRTUAL SAN HEALTH CHECK PLUG-IN RCE (CVE-2021-21985) | https://github.com/sknux/CVE-2021-21985_PoC | POC Details |
| 11 | None | https://github.com/haidv35/CVE-2021-21985 | POC Details |
| 12 | The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21985.yaml | POC Details |
| 13 | vmware vCenter unauth RCE cve-2021-21985 | https://github.com/chaitin/xray-plugins/blob/main/poc/manual/vmware-vcenter-cve-2021-21985-rce.yml | POC Details |
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Vendor Advisories for CVE-2021-21985 (1)
-
https://www.vmware.com/security/advisories/VMSA-2021-0010.html x_refsource_MISC
Exploits & Public PoCs for CVE-2021-21985 (2)
Same Patch Batch · n/a · 2021-05-26 · 92 CVEs total
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| CVE-2021-29253 | 5.1 MEDIUM | RSA Archer 安全漏洞 |
| CVE-2021-22746 | Triconex Model 3009 MP 代码问题漏洞 | |
| CVE-2021-22731 | Schneider Electric 授权问题漏洞 | |
| CVE-2021-22732 | Schneider Electric homeLYnk和spaceLYnk 安全漏洞 | |
| CVE-2021-22736 | Schneider Electric homeLYnk和spaceLYnk 路径遍历漏洞 | |
| CVE-2021-22734 | Schneider Electric spaceLYnk和homeLYnk 数据伪造问题漏洞 | |
| CVE-2021-22735 | Schneider Electric homeLYnk和spaceLYnk 数据伪造问题漏洞 | |
| CVE-2021-22733 | Schneider Electric homeLYnk和spaceLYnk 安全漏洞 | |
| CVE-2021-22743 | Triconex Model 3009 MP 代码问题漏洞 | |
| CVE-2021-22744 | Triconex Model 3009 MP 代码问题漏洞 | |
| CVE-2021-22745 | Triconex Model 3009 MP 代码问题漏洞 | |
| CVE-2021-22741 | Schneider Electric EcoStruxure Geo SCADA Expert 安全漏洞 | |
| CVE-2021-22747 | Triconex Model 3009 MP 代码问题漏洞 | |
| CVE-2020-22021 | FFmpeg 缓冲区错误漏洞 | |
| CVE-2021-25643 | Couchbase Server 安全漏洞 | |
| CVE-2020-22024 | FFmpeg 安全漏洞 | |
| CVE-2020-22026 | FFmpeg 安全漏洞 | |
| CVE-2021-3548 | dmg2img 缓冲区错误漏洞 | |
| CVE-2020-22028 | FFmpeg 安全漏洞 |
Showing top 20 of 92 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-21985
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