Vulnerabilities in pkg:gem/discordrb

PACKAGE
Advisory Identifier: GHSA-8832-4mm5-x2r6
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Advisory Summary

CVE-2023-28102 is a CRITICAL (CVSS 9.6) discordrb os command injection vulnerability vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Discordrb libraries in the RubyGems ecosystem. The issue involves discordrb os command injection vulnerability. Remediation is available by upgrading affected packages to version 3.4.3.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:gem/discordrb

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:gem/discordrb. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-8832-4mm5-x2r6 CVE-2023-28102 CRITICAL discordrb OS Command Injection vulnerability

CVE-2023-28102 at a Glance

CVE Identifier CVE-2023-28102
GHSA Identifier GHSA-8832-4mm5-x2r6
Severity CRITICAL
CVSS v3.1 Base Score 9.6
CWE Classification CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Product Discordrb
Package Ecosystem RubyGems
Published Date
Last Updated

Security Impact

CVSS: 9.6

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

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

How to Fix CVE-2023-28102

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

discordrb fixed: 3.4.3 
Upgrade discordrb to 3.4.3
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 discordrb

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-28102, inspect your project dependencies for Discordrb:

inspect dependencies for discordrb

Analyze the terminal output to locate any version of Discordrb in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.4.3), 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-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), where the product constructs all or part of an os command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended os command when it is sent to a downstream component. In Discordrb, 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

discordrb is an implementation of the Discord API using Ruby. In discordrb before commit `91e13043ffa` the `encoder.rb` file unsafely constructs a shell string using the file parameter, which can potentially leave clients of discordrb vulnerable to command injection. The library is not directly exploitable: the exploit requires that some client of the library calls the vulnerable method with user input. However, if unsafe input reaches the library method, then an attacker can execute arbitrary shell commands on the host machine. Full impact will depend on the permissions of the process running the `discordrb` library and will likely not be total system access. This issue has been addressed in code, but a new release of the `discordrb` gem has not been uploaded to rubygems. This issue is also tracked as `GHSL-2022-094`.

CVE-2023-28102 Affected Discordrb Versions

1 component(s)
Fixed Versions:
3.4.3
Product / Package Ecosystem Affected Versions Fixed Version
discordrb
gem/discordrb
RubyGems
< 3.4.3
3.4.3

References

NVD — CVE-2023-28102 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-28102
Security Fix Commit FIX COMMIT
https://github.com/shardlab/discordrb/commit/91e13043ffa89227c3fcdc3408f06da237d28c95
Discordrb Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/discordrb/CVE-2023-28102.yml
Discordrb Source Repository REPOSITORY
https://github.com/shardlab/discordrb
Discordrb Source Repository REPOSITORY
https://securitylab.github.com/advisories
GitHub Advisory / Wiki ADVISORY
https://securitylab.github.com/advisories/GHSL-2022-094_discordrb

Frequently Asked Questions

What is CVE-2023-28102?
CVE-2023-28102 is a security vulnerability in Discordrb involving discordrb OS Command Injection vulnerability under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Discordrb versions are affected?
Affected versions include releases prior to 3.4.3 across affected packages: discordrb.
What version fixes CVE-2023-28102?
Upgrading to 3.4.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is discordrb affected?
Yes, discordrb is affected in releases prior to 3.4.3. Upgrade your dependency to 3.4.3 or later.
What is the CVSS score of CVE-2023-28102?
CVE-2023-28102 has a CVSS v3.1 base score of 9.6 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2023-28102?
CVE-2023-28102 is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.).
How can I check RubyGems dependencies for CVE-2023-28102?
Run the dependency tree command: 'inspect dependencies for discordrb'. 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-8832-4mm5-x2r6",
  "modified" : "2024-03-14T20:37:58Z",
  "published" : "2024-03-14T20:37:58Z",
  "aliases" : [ "CVE-2023-28102" ],
  "summary" : "discordrb OS Command Injection vulnerability",
  "details" : "discordrb is an implementation of the Discord API using Ruby. In discordrb before commit `91e13043ffa` the `encoder.rb` file unsafely constructs a shell string using the file parameter, which can potentially leave clients of discordrb vulnerable to command injection. The library is not directly exploitable: the exploit requires that some client of the library calls the vulnerable method with user input. However, if unsafe input reaches the library method, then an attacker can execute arbitrary shell commands on the host machine. Full impact will depend on the permissions of the process running the `discordrb` library and will likely not be total system access. This issue has been addressed in code, but a new release of the `discordrb` gem has not been uploaded to rubygems. This issue is also tracked as `GHSL-2022-094`.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "discordrb"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.4.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-28102"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/shardlab/discordrb/commit/91e13043ffa89227c3fcdc3408f06da237d28c95"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/discordrb/CVE-2023-28102.yml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/shardlab/discordrb"
  }, {
    "type" : "WEB",
    "url" : "https://securitylab.github.com/advisories"
  }, {
    "type" : "ADVISORY",
    "url" : "https://securitylab.github.com/advisories/GHSL-2022-094_discordrb"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-03-14T20:37:58Z",
    "nvd_published_at" : "2023-03-27T22:15:22Z"
  }
}