CVE-2020-10728

Container privilege escalation via universal sudo rule

Published Aug 16, 2022 · Updated Aug 4, 2024

Incorrect privilege assignment in Automation Broker APB 2.0.4-1 and earlier allows local users to gain root inside its container. The image Dockerfile writes the rule ALL ALL=NOPASSWD: ALL to /etc/sudoers.d/usermod, granting every container user passwordless execution as root. Exploitation requires access as a non-root user in the running APB container; the resulting root access permits reading or changing container data and interrupting its services.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect privilege assignment in Automation Broker APB 2.0.4-1 and earlier allows local users to gain root inside its container. The image Dockerfile writes the rule ALL ALL=NOPASSWD: ALL to /etc/sudoers.d/usermod, granting every container user passwordless execution as root. Exploitation requires access as a non-root user in the running APB container; the resulting root access permits reading or changing container data and interrupting its services.

The record

CVE
CVE-2020-10728
Published
Aug 16, 2022
Updated
Aug 4, 2024
Vendor
Automation Broker
Product
APB
Classifications
CWE-266, CWE-269, T1548.003
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 16, 2022CVE 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=up to and including 2.0.4-1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Automation Broker · APBversion=up to and including 2.0.4-1

Published CVSS scores

7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/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.

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No observations available

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

Weakness, pattern, technique

CWE-266Incorrect Privilege Assignment
CWE-269Improper Privilege Management
T1548.003Abuse Elevation Control Mechanism: Sudo and Sudo Caching

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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