Security readout for executives and security teams
Plain-English summary
CVE-2021-23732 affects the npm package docker-cli-js, not Docker itself. If an application lets a user influence the Docker.command parameter, that user may execute operating system commands on the host. The impact is potentially full host compromise.
Executive priority
Treat as high priority where docker-cli-js is used in production, CI, or administrative services. Arbitrary host command execution can become business-impacting compromise, but urgency depends on confirmed dependency use and input exposure.
Technical view
The vulnerable surface is Docker.command in docker-cli-js. The CVE describes arbitrary OS command execution when the command argument is at least partially user-controlled. CVSS 3.1 score is 9.0 with network attack vector, high impact, and changed scope.
Likely exposure
Exposure is likely limited to applications, internal tools, CI systems, or automation that import docker-cli-js and pass user-influenced data into Docker.command. The bundle says all versions are affected, but does not identify specific patched versions.
Exploitation context
The source bundle does not show CISA KEV status or cited evidence of active exploitation. Practical risk depends on whether untrusted users can influence Docker.command and what privileges the hosting process has.
Researcher notes
The key validation question is data flow into Docker.command. The bundle provides impact and affected package information, but not exploit telemetry, proof-of-concept details, or a named fixed version. Avoid assuming Docker Engine is vulnerable.
Mitigation direction
- Inventory codebases and build systems for docker-cli-js usage.
- Check maintainer, Snyk, and vendor guidance for supported remediation options.
- Remove user influence from Docker.command input paths.
- Use fixed, validated command selections instead of raw command strings.
- Restrict privileges for services that can invoke Docker commands.
- Prioritize replacement if no maintained fixed release is available.
Validation and detection
- Search dependency manifests and lockfiles for docker-cli-js.
- Review all Docker.command call sites for user-controlled data flow.
- Confirm affected services run with minimal host and Docker privileges.
- Check Snyk and vendor advisories for current fix guidance.
- Document whether exposure is production, CI-only, or developer-only.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupContainer behavior lookup
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-23732 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H2.26Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9CriticalVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://snyk.io/vuln/SNYK-JS-DOCKERCLIJS-1568516CVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20211223-0004/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.