ShadowsockApplication · Shadowsock Project

CVE-2017-16078

HIGH · 7.5 CVSS v3.0 Published 2018-06-07
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
shadowsock was a malicious module published with the intent to hijack environment variables. It has been unpublished by npm.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

shadowsock was a malicious npm module designed to exfiltrate environment variables from infected systems. The module hijacked environment variables, which typically contain sensitive data such as API keys, database credentials, tokens, and other secrets, sending them to an attacker-controlled endpoint.

MitigationImmediately audit and remove the shadowsock module from all projects and systems where it may have been installed. Rotate all credentials, API keys, tokens, and secrets that were present in environment variables on affected systems since installation.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
ShadowsockApplication
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check package.json for shadowsock dependency
    Search your project's package.json file for 'shadowsock' in the dependencies, devDependencies, or optionalDependencies sections
    Affected if The shadowsock package is listed as a dependency
  2. Inspect node_modules for shadowsock package
    Look for a shadowsock directory in your project's node_modules folder
    Affected if The shadowsock directory exists in node_modules
  3. Verify package installation source
    Check if shadowsock was installed from the npm registry by reviewing your package-lock.json or yarn.lock file for the package source
    Affected if The shadowsock package was installed from npm
  4. Audit environment variable exposure
    Review any code that imports or requires shadowsock and trace what environment variables are accessed or exported after the module loads
    Affected if Code loads shadowsock and sensitive environment variables are accessed after its inclusion

A user is affected if the shadowsock malicious npm module is present in their project dependencies or node_modules, as it was designed to steal and exfiltrate environment variable data.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Immediately audit and remove the shadowsock module from all projects and systems where it may have been installed. Rotate all credentials, API keys, tokens, and secrets that were present in environment variables on affected systems since installation.

Fix this in Shadowsock Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-16078 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data