VladtheenterprisingApplication · Vladtheenterprising Project

CVE-2014-4996

MEDIUM · 5.5 CVSS v3.0 Published 2018-01-10
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
57/100
Remediation priority · Elevated
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
lib/vlad/dba/mysql.rb in the VladTheEnterprising gem 0.2 for Ruby allows local users to write to arbitrary files via a symlink attack on /tmp/my.cnf.#{target_host}.

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 · moderate confidence

The VladTheEnterprising gem 0.2 for Ruby contains a symlink attack vulnerability in lib/vlad/dba/mysql.rb. Local users can write to arbitrary files by pre-creating a symlink at /tmp/my.cnf.#{target_host} before the application writes its MySQL configuration file there, allowing overwrite of any accessible file.

MitigationRestrict permissions on /tmp to prevent untrusted symlink creation, use a secure application-specific config directory instead of /tmp, or upgrade to a patched version of the gem if available.

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
VladtheenterprisingApplication
Affected:= 0.2.0

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
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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 if Vladtheenterprising gem is installed
    Run 'gem list vladtheenterprising' or check your Gemfile for the vladtheenterprising gem dependency
    Affected if The gem is installed and its version is 0.2.0
  2. Locate the vulnerable mysql.rb file
    Search for lib/vlad/dba/mysql.rb in your project directory or gem installation path
    Affected if The file exists and belongs to Vladtheenterprising version 0.2.0
  3. Identify if the MySQL DBA task is invoked
    Review your deployment scripts or rake tasks for calls to 'vlad:mysql' or 'vlad:mysql:create'
    Affected if The Vlad deployment task that writes MySQL configuration to /tmp is being executed
  4. Check /tmp directory permissions
    Run 'ls -ld /tmp' to verify sticky bit is set and permissions are restrictive (1777)
    Affected if The /tmp directory allows untrusted users to create files or symlinks (missing sticky bit or overly permissive ACLs)

You are affected if Vladtheenterprising gem version 0.2.0 is installed and your deployment process invokes the MySQL configuration task, especially if /tmp has weak permissions allowing symlink pre-creation.

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

Restrict permissions on /tmp to prevent untrusted symlink creation, use a secure application-specific config directory instead of /tmp, or upgrade to a patched version of the gem if available.

Fix this in Vladtheenterprising Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing1.0 h
  • Review / QA1.0 h
5.0 hours of engineering $890
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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-2014-4996 in production — separate from our analysis above.

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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
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