CVE-2020-11016Network attack vector

Authenticated code execution via nested shell quoting

Published Apr 30, 2020 · Updated Aug 4, 2024

OS command injection in IntelMQ Manager 1.1.0 through 2.1.0 allows remote authenticated users to execute code as the webserver. In controller.php, the send branch adds single quotes around output already quoted by escapeshellarg, ending the intended shell argument before the submitted msg value. Access to the Manager interface is required, and successful commands inherit the webserver process privileges while their output is returned to the requester.

CVSS severity8.8
High
EPSS probability2.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in IntelMQ Manager 1.1.0 through 2.1.0 allows remote authenticated users to execute code as the webserver. In controller.php, the send branch adds single quotes around output already quoted by escapeshellarg, ending the intended shell argument before the submitted msg value. Access to the Manager interface is required, and successful commands inherit the webserver process privileges while their output is returned to the requester.

The record

CVE
CVE-2020-11016
Published
Apr 30, 2020
Updated
Aug 4, 2024
Vendor
certtools
Product
IntelMQ Manager
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 30, 2020CVE 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.1.0, < 2.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

certtools · IntelMQ Managerversion=>= 1.1.0, < 2.1.1

Published CVSS scores

9.1GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

No public exploit references are available in this record.

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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