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CVE-2017-15403

HIGH · 7.3 CVSS v3.0 Published 2019-01-09
Fix available
A fix is available. Upgrade to 61.0.3163.113 or later.
See remediation →
73/100
Remediation priority · Elevated

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
Insufficient data validation in crosh could lead to a command injection under chronos privileges in Networking in Google Chrome on Chrome OS prior to 61.0.3163.113 allowed a local attacker to execute arbitrary code via a crafted HTML page.

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

Command injection vulnerability in crosh (Chrome OS Developer Shell) due to insufficient data validation. Allows a local attacker with a crafted HTML page to execute arbitrary code under chronos (non-root user) privileges in Chrome OS versions prior to 61.0.3163.113.

MitigationUpdate Chrome OS to version 61.0.3163.113 or later to patch the insufficient data validation in crosh.

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
ChromeWeb browser
Affected:< 61.0.3163.113

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
Local
Complexity
Low
Privileges
Low
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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 Chrome browser version
    Navigate to chrome://version in the Chrome browser or chrome://settings/help to view the installed version number
    Affected if The displayed version number is less than 61.0.3163.113
  2. Verify Chrome OS environment (if applicable)
    Check for the presence of crosh shell by opening a terminal and typing 'crosh' or checking /etc/chromeos-release
    Affected if The system is Chrome OS and the Chrome version from step 1 is less than 61.0.3163.113
  3. Confirm crosh is accessible
    Open crosh shell by pressing Ctrl+Alt+T or running 'crosh' command from a terminal
    Affected if Crosh is accessible and the Chrome version is below 61.0.3163.113

You are affected if running Chrome or Chrome OS with a version lower than 61.0.3163.113 and the crosh developer shell is accessible.

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
Upgrade available Upgrade to 61.0.3163.113 or later
Fixed in 61.0.3163.113
Interim mitigation

Update Chrome OS to version 61.0.3163.113 or later to patch the insufficient data validation in crosh.

Fix this in Chrome Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,040
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,664.

Scan for this in your stack

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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-2017-15403 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