CVE-2016-6582: Doorkeeper Doorkeeper Is Vulnerable To Replay Vulnerability

CRITICAL
Advisory Identifier: GHSA-3m6r-39p3-jq25
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CVSS 9.1
CWE-1254
Published
Advisory Summary

CVE-2016-6582 is a CRITICAL (CVSS 9.1) doorkeeper is vulnerable to replay vulnerability (CWE-1254: Incorrect Comparison Logic Granularity) affecting Doorkeeper libraries in the RubyGems ecosystem. The issue involves doorkeeper is vulnerable to replay attacks. Remediation is available by upgrading affected packages to version 4.2.0.

CVE-2016-6582 at a Glance

CVE Identifier CVE-2016-6582
GHSA Identifier GHSA-3m6r-39p3-jq25
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification CWE-1254: Incorrect Comparison Logic Granularity
Affected Product Doorkeeper
Package Ecosystem RubyGems
Published Date
Last Updated

Security Impact

CVSS: 9.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H).

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

How to Fix CVE-2016-6582

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

doorkeeper fixed: 4.2.0 
Upgrade doorkeeper to 4.2.0
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 doorkeeper

How to Check if You Are Affected

To determine whether your application is affected by CVE-2016-6582, inspect your project dependencies for Doorkeeper:

inspect dependencies for doorkeeper

Analyze the terminal output to locate any version of Doorkeeper in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.2.0), 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-1254: Incorrect Comparison Logic Granularity, where the product's comparison logic is performed over a series of steps rather than across the entire string in one operation. if there is a comparison logic failure on one of these steps, the operation may be vulnerable to a timing attack that can result in the interception of the process for nefarious purposes. In Doorkeeper, 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 Doorkeeper gem before 4.2.0 for Ruby might allow remote attackers to conduct replay attacks or revoke arbitrary tokens by leveraging failure to implement the OAuth 2.0 Token Revocation specification.

CVE-2016-6582 Affected Doorkeeper Versions

1 component(s)
Fixed Versions:
4.2.0
Product / Package Ecosystem Affected Versions Fixed Version
doorkeeper
gem/doorkeeper
RubyGems
< 4.2.0
4.2.0

References

NVD — CVE-2016-6582 NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6582
Doorkeeper Source Repository REPOSITORY
https://github.com/doorkeeper-gem/doorkeeper/issues/875
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-3m6r-39p3-jq25
Doorkeeper Source Repository REPOSITORY
https://github.com/doorkeeper-gem/doorkeeper
Doorkeeper Release RELEASE
https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v4.2.0
Doorkeeper Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/doorkeeper/CVE-2016-6582.yml
Doorkeeper Security Information SECURITY
https://web.archive.org/web/20170214021758/http://www.securityfocus.com/bid/92551
Doorkeeper Security Information SECURITY
https://web.archive.org/web/20201207202519/http://www.securityfocus.com/archive/1/539268/100/0/threaded
Doorkeeper Security Information SECURITY
http://packetstormsecurity.com/files/138430/Doorkeeper-4.1.0-Token-Revocation.html
seclists.org/fulldisclosure/2016... WEB
http://seclists.org/fulldisclosure/2016/Aug/105
Doorkeeper Security Information SECURITY
http://www.openwall.com/lists/oss-security/2016/08/19/2

Frequently Asked Questions

What is CVE-2016-6582?
CVE-2016-6582 is a security vulnerability in Doorkeeper involving Doorkeeper is vulnerable to replay attacks under CWE-1254: Incorrect Comparison Logic Granularity.
Which Doorkeeper versions are affected?
Affected versions include releases prior to 4.2.0 across affected packages: doorkeeper.
What version fixes CVE-2016-6582?
Upgrading to 4.2.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is doorkeeper affected?
Yes, doorkeeper is affected in releases prior to 4.2.0. Upgrade your dependency to 4.2.0 or later.
What is the CVSS score of CVE-2016-6582?
CVE-2016-6582 has a CVSS v3.1 base score of 9.1 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
What CWE is associated with CVE-2016-6582?
CVE-2016-6582 is classified under CWE-1254: Incorrect Comparison Logic Granularity (The product's comparison logic is performed over a series of steps rather than across the entire string in one operation. If there is a comparison logic failure on one of these steps, the operation may be vulnerable to a timing attack that can result in the interception of the process for nefarious purposes.).
How can I check RubyGems dependencies for CVE-2016-6582?
Run the dependency tree command: 'inspect dependencies for doorkeeper'. 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-3m6r-39p3-jq25",
  "modified" : "2022-04-25T16:34:57Z",
  "published" : "2017-10-24T18:33:35Z",
  "aliases" : [ "CVE-2016-6582" ],
  "summary" : "Doorkeeper is vulnerable to replay attacks",
  "details" : "The Doorkeeper gem before 4.2.0 for Ruby might allow remote attackers to conduct replay attacks or revoke arbitrary tokens by leveraging failure to implement the OAuth 2.0 Token Revocation specification.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "doorkeeper"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2016-6582"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/doorkeeper-gem/doorkeeper/issues/875"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-3m6r-39p3-jq25"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/doorkeeper-gem/doorkeeper"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v4.2.0"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/doorkeeper/CVE-2016-6582.yml"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20170214021758/http://www.securityfocus.com/bid/92551"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20201207202519/http://www.securityfocus.com/archive/1/539268/100/0/threaded"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/138430/Doorkeeper-4.1.0-Token-Revocation.html"
  }, {
    "type" : "WEB",
    "url" : "http://seclists.org/fulldisclosure/2016/Aug/105"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2016/08/19/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1254" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T20:55:30Z",
    "nvd_published_at" : null
  }
}