CVE-2020-21224Public exploitNetwork attack vector

Unauthenticated command execution via login parameters

Published Feb 22, 2021 · Updated Aug 4, 2024

Command injection in Inspur ClusterEngine 4.0 allows remote attackers to execute arbitrary commands via a crafted login request. The login endpoint incorporates username and password parameters into shell-command processing without neutralizing quotes and command delimiters. The request needs no valid account or user interaction, and successful exploitation runs commands as root, including a reverse shell.

CVSS severity9.8
Critical
EPSS probability38.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Inspur ClusterEngine 4.0 allows remote attackers to execute arbitrary commands via a crafted login request. The login endpoint incorporates username and password parameters into shell-command processing without neutralizing quotes and command delimiters. The request needs no valid account or user interaction, and successful exploitation runs commands as root, including a reverse shell.

The record

CVE
CVE-2020-21224
Published
Feb 22, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-88, T1190, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
T1190Exploit Public-Facing Application
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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