CVE-2015-3649: Open uri cached Open-uri-cached Gem For Ruby Unsafe Vulnerability

HIGH
Advisory Identifier: GHSA-7m2w-9gw7-c3xp
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CVSS 7.8
CWE-20
Published
Advisory Summary

CVE-2015-3649 is a HIGH (CVSS 7.8) open-uri-cached gem for ruby unsafe vulnerability (CWE-20: Improper Input Validation) affecting Open uri cached libraries in the RubyGems ecosystem. The issue involves open-uri-cached gem for ruby unsafe temporary file creation enables code execution. Remediation is available in the latest vendor maintenance releases.

CVE-2015-3649 at a Glance

CVE Identifier CVE-2015-3649
GHSA Identifier GHSA-7m2w-9gw7-c3xp
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-20: Improper Input Validation
Affected Product Open uri cached
Package Ecosystem RubyGems
Published Date
Last Updated

Security Impact

CVSS: 7.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2015-3649

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

open-uri-cached fixed: Latest secure release 
Upgrade open-uri-cached to Latest secure release
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 open-uri-cached

How to Check if You Are Affected

To determine whether your application is affected by CVE-2015-3649, inspect your project dependencies for Open uri cached:

inspect dependencies for open-uri-cached

Analyze the terminal output to locate any version of Open uri cached in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), 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-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Open uri cached, 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

The open-uri-cached rubygem allows local users to execute arbitrary Ruby code by creating a directory under /tmp containing "openuri-" followed by a crafted UID, and putting Ruby code in said directory once a metafile is created.

CVE-2015-3649 Affected Open uri cached Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
open-uri-cached
gem/open-uri-cached
RubyGems
≤ 1.0.0

References

NVD — CVE-2015-3649 NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-3649
Open uri cached Source Repository REPOSITORY
https://github.com/tigris/open-uri-cached/issues/8
Open uri cached Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/open-uri-cached/CVE-2015-3649.yml
Open uri cached Source Repository REPOSITORY
https://github.com/tigris/open-uri-cached
Open uri cached Source Repository REPOSITORY
https://github.com/tigris/open-uri-cached/blob/master/lib/open-uri/cached.rb
Open uri cached Security Information SECURITY
https://web.archive.org/web/20210119122105/http://www.securityfocus.com/bid/74469
seclists.org/oss-sec/2015/q2/373 WEB
http://seclists.org/oss-sec/2015/q2/373
Open uri cached Security Information SECURITY
http://www.benjaminfleischer.com/2013/03/20/yaml-and-security-in-ruby
Open uri cached Security Information SECURITY
http://www.openwall.com/lists/oss-security/2015/05/06/2

Frequently Asked Questions

What is CVE-2015-3649?
CVE-2015-3649 is a security vulnerability in Open uri cached involving open-uri-cached Gem for Ruby Unsafe Temporary File Creation Enables Code Execution under CWE-20: Improper Input Validation.
Which Open uri cached versions are affected?
Affected versions include releases prior to current release patches across affected packages: open-uri-cached.
What version fixes CVE-2015-3649?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is open-uri-cached affected?
Yes, open-uri-cached is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2015-3649?
CVE-2015-3649 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2015-3649?
CVE-2015-3649 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check RubyGems dependencies for CVE-2015-3649?
Run the dependency tree command: 'inspect dependencies for open-uri-cached'. 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-7m2w-9gw7-c3xp",
  "modified" : "2023-07-03T23:13:40Z",
  "published" : "2022-05-13T01:13:48Z",
  "aliases" : [ "CVE-2015-3649" ],
  "summary" : "open-uri-cached Gem for Ruby Unsafe Temporary File Creation Enables Code Execution",
  "details" : "The open-uri-cached rubygem allows local users to execute arbitrary Ruby code by creating a directory under /tmp containing \"openuri-\" followed by a crafted UID, and putting Ruby code in said directory once a metafile is created.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "open-uri-cached"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2015-3649"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/tigris/open-uri-cached/issues/8"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/open-uri-cached/CVE-2015-3649.yml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/tigris/open-uri-cached"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/tigris/open-uri-cached/blob/master/lib/open-uri/cached.rb"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20210119122105/http://www.securityfocus.com/bid/74469"
  }, {
    "type" : "WEB",
    "url" : "http://seclists.org/oss-sec/2015/q2/373"
  }, {
    "type" : "WEB",
    "url" : "http://www.benjaminfleischer.com/2013/03/20/yaml-and-security-in-ruby"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2015/05/06/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-06-09T23:05:43Z",
    "nvd_published_at" : "2017-08-18T16:29:00Z"
  }
}