CVE-2012-1906: Puppet Puppet Uses Predictable Filenames, Allowing Vulnerability

MODERATE
Advisory Identifier: GHSA-c4mc-49hq-q275
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CWE-377
Published
Advisory Summary

CVE-2012-1906 is a MODERATE puppet uses predictable filenames, allowing vulnerability (CWE-377: Insecure Temporary File) affecting Puppet libraries in the RubyGems ecosystem. The issue involves puppet uses predictable filenames, allowing arbitrary file overwrite. Remediation is available by upgrading affected packages to version 2.6.15, 2.7.13.

CVE-2012-1906 at a Glance

CVE Identifier CVE-2012-1906
GHSA Identifier GHSA-c4mc-49hq-q275
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-377: Insecure Temporary File
Affected Product Puppet
Package Ecosystem RubyGems
Published Date
Last Updated

How to Fix CVE-2012-1906

To remediate this vulnerability, upgrade all affected Puppet dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

puppet fixed: 2.6.15 
Upgrade puppet to 2.6.15
puppet fixed: 2.7.13 
Upgrade puppet to 2.7.13
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for puppet

How to Check if You Are Affected

To determine whether your application is affected by CVE-2012-1906, inspect your project dependencies for Puppet:

inspect dependencies for puppet

Analyze the terminal output to locate any version of Puppet in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.6.15), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-377: Insecure Temporary File, where creating and using insecure temporary files can leave application and system data vulnerable to attack. In Puppet, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Puppet 2.6.x before 2.6.15 and 2.7.x before 2.7.13, and Puppet Enterprise (PE) Users 1.0, 1.1, 1.2.x, 2.0.x, and 2.5.x before 2.5.1 uses predictable file names when installing Mac OS X packages from a remote source, which allows local users to overwrite arbitrary files or install arbitrary packages via a symlink attack on a temporary file in /tmp.

CVE-2012-1906 Affected Puppet Versions

2 component(s)
Fixed Versions:
2.6.152.7.13
Product / Package Ecosystem Affected Versions Fixed Version
puppet
gem/puppet
RubyGems
≥ 2.6
< 2.6.15
2.6.15
puppet
gem/puppet
RubyGems
≥ 2.7
< 2.7.13
2.7.13

References

NVD — CVE-2012-1906 NVD
https://nvd.nist.gov/vuln/detail/CVE-2012-1906
Security Fix Commit FIX COMMIT
https://github.com/puppetlabs/puppet/commit/f7829ec1f1b2c3def8e0eda09c22c3c1fed3a27f
exchange.xforce.ibmcloud.com/vulnerabilities/747... WEB
https://exchange.xforce.ibmcloud.com/vulnerabilities/74793
Puppet Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puppet/CVE-2012-1906.yml
ubuntu.com/usn/usn-1419-1 WEB
https://ubuntu.com/usn/usn-1419-1
Puppet Security Information SECURITY
https://web.archive.org/web/20120415105345/http://www.securityfocus.com/bid/52975
Puppet Security Information SECURITY
https://www.debian.org/security/2012/dsa-2451
Puppet Security Information SECURITY
http://projects.puppetlabs.com/issues/13260
Puppet Security Information SECURITY
http://puppetlabs.com/security/cve/cve-2012-1906

Frequently Asked Questions

What is CVE-2012-1906?
CVE-2012-1906 is a security vulnerability in Puppet involving Puppet uses predictable filenames, allowing arbitrary file overwrite under CWE-377: Insecure Temporary File.
Which Puppet versions are affected?
Affected versions include releases prior to 2.6.15, 2.7.13 across affected packages: puppet.
What version fixes CVE-2012-1906?
Upgrading to 2.6.15, 2.7.13 (or the latest patched release for your respective branch) resolves the vulnerability.
Is puppet affected?
Yes, puppet is affected in releases prior to 2.6.15, 2.7.13. Upgrade your dependency to 2.6.15, 2.7.13 or later.
What CWE is associated with CVE-2012-1906?
CVE-2012-1906 is classified under CWE-377: Insecure Temporary File (Creating and using insecure temporary files can leave application and system data vulnerable to attack.).
How can I check RubyGems dependencies for CVE-2012-1906?
Run the dependency tree command: 'inspect dependencies for puppet'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-c4mc-49hq-q275",
  "modified" : "2023-08-29T21:02:11Z",
  "published" : "2022-05-14T00:56:45Z",
  "aliases" : [ "CVE-2012-1906" ],
  "summary" : "Puppet uses predictable filenames, allowing arbitrary file overwrite",
  "details" : "Puppet 2.6.x before 2.6.15 and 2.7.x before 2.7.13, and Puppet Enterprise (PE) Users 1.0, 1.1, 1.2.x, 2.0.x, and 2.5.x before 2.5.1 uses predictable file names when installing Mac OS X packages from a remote source, which allows local users to overwrite arbitrary files or install arbitrary packages via a symlink attack on a temporary file in /tmp.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "puppet"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.6"
      }, {
        "fixed" : "2.6.15"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "puppet"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.7"
      }, {
        "fixed" : "2.7.13"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2012-1906"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/puppetlabs/puppet/commit/f7829ec1f1b2c3def8e0eda09c22c3c1fed3a27f"
  }, {
    "type" : "WEB",
    "url" : "https://exchange.xforce.ibmcloud.com/vulnerabilities/74793"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puppet/CVE-2012-1906.yml"
  }, {
    "type" : "WEB",
    "url" : "https://ubuntu.com/usn/usn-1419-1"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20120415105345/http://www.securityfocus.com/bid/52975"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2012/dsa-2451"
  }, {
    "type" : "WEB",
    "url" : "http://projects.puppetlabs.com/issues/13260"
  }, {
    "type" : "WEB",
    "url" : "http://puppetlabs.com/security/cve/cve-2012-1906"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-377" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-29T21:02:11Z",
    "nvd_published_at" : "2012-05-29T20:55:00Z"
  }
}