CVE-2022-25765: Pdfkit PDFKit Vulnerable To Command Injection Vulnerability

CRITICAL
Advisory Identifier: GHSA-rhwx-hjx2-x4qr
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CVSS 9.8
CWE-77
Published
Advisory Summary

CVE-2022-25765 is a CRITICAL (CVSS 9.8) pdfkit vulnerable to command injection vulnerability (CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')) affecting Pdfkit libraries in the RubyGems ecosystem. The issue involves pdfkit vulnerable to command injection. Remediation is available by upgrading affected packages to version 0.8.7.2.

CVE-2022-25765 at a Glance

CVE Identifier CVE-2022-25765
GHSA Identifier GHSA-rhwx-hjx2-x4qr
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Product Pdfkit
Package Ecosystem RubyGems
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:N/S:U/C:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2022-25765

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

pdfkit fixed: 0.8.7.2 
Upgrade pdfkit to 0.8.7.2
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 pdfkit

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-25765, inspect your project dependencies for Pdfkit:

inspect dependencies for pdfkit

Analyze the terminal output to locate any version of Pdfkit in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.8.7.2), 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-77: Improper Neutralization of Special Elements used in a Command ('Command Injection'), where the product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. In Pdfkit, 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 package pdfkit is vulnerable to Command Injection where the URL is not properly sanitized. Note: This issue was patched in 0.8.7.2, but the patch was discovered to be ineffective. The updated patch version is 0.8.7.2.

CVE-2022-25765 Affected Pdfkit Versions

1 component(s)
Fixed Versions:
0.8.7.2
Product / Package Ecosystem Affected Versions Fixed Version
pdfkit
gem/pdfkit
RubyGems
< 0.8.7.2
0.8.7.2

References

NVD — CVE-2022-25765 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-25765
Pdfkit Source Repository REPOSITORY
https://github.com/pdfkit/pdfkit/issues/517
Pdfkit Source Repository REPOSITORY
https://github.com/pdfkit/pdfkit/pull/519
Pdfkit Source Repository REPOSITORY
https://github.com/pdfkit/pdfkit
Pdfkit Source Repository REPOSITORY
https://github.com/pdfkit/pdfkit/blob/46cdf53ec540da1a1a2e4da979e3e5fe2f92a257/lib/pdfkit/pdfkit.rb#L55-L58
Pdfkit Source Repository REPOSITORY
https://github.com/pdfkit/pdfkit/blob/46cdf53ec540da1a1a2e4da979e3e5fe2f92a257/lib/pdfkit/pdfkit.rb%23L55-L58
Pdfkit Source Repository REPOSITORY
https://github.com/pdfkit/pdfkit/blob/master/lib/pdfkit/source.rb%23L44-L50
Pdfkit Release RELEASE
https://github.com/pdfkit/pdfkit/releases/tag/v0.8.7
Pdfkit Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/pdfkit/CVE-2022-25765.yml
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C36GAV3TKM3JXV6UVMLMTTDRCPKSNETQ
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ESWB6SX7HYWQ54UGBGQOZ7G24O6RAOKD
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JFB2BFKH5SUGRKXMY6PWRQNGKZML7GDT
Pdfkit Security Information SECURITY
https://security.snyk.io/vuln/SNYK-RUBY-PDFKIT-2869795
Pdfkit Security Information SECURITY
http://packetstormsecurity.com/files/171746/pdfkit-0.8.7.2-Command-Injection.html

Frequently Asked Questions

What is CVE-2022-25765?
CVE-2022-25765 is a security vulnerability in Pdfkit involving PDFKit vulnerable to Command Injection under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection').
Which Pdfkit versions are affected?
Affected versions include releases prior to 0.8.7.2 across affected packages: pdfkit.
What version fixes CVE-2022-25765?
Upgrading to 0.8.7.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pdfkit affected?
Yes, pdfkit is affected in releases prior to 0.8.7.2. Upgrade your dependency to 0.8.7.2 or later.
What is the CVSS score of CVE-2022-25765?
CVE-2022-25765 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2022-25765?
CVE-2022-25765 is classified under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') (The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.).
How can I check RubyGems dependencies for CVE-2022-25765?
Run the dependency tree command: 'inspect dependencies for pdfkit'. 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-rhwx-hjx2-x4qr",
  "modified" : "2023-01-26T22:41:07Z",
  "published" : "2022-09-10T00:00:32Z",
  "aliases" : [ "CVE-2022-25765" ],
  "summary" : "PDFKit vulnerable to Command Injection",
  "details" : "The package pdfkit is vulnerable to Command Injection where the URL is not properly sanitized.\n\nNote: This issue was patched in 0.8.7.2, but the patch was discovered to be ineffective. The updated patch version is 0.8.7.2.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "pdfkit"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.8.7.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-25765"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pdfkit/pdfkit/issues/517"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pdfkit/pdfkit/pull/519"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pdfkit/pdfkit"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pdfkit/pdfkit/blob/46cdf53ec540da1a1a2e4da979e3e5fe2f92a257/lib/pdfkit/pdfkit.rb#L55-L58"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pdfkit/pdfkit/blob/46cdf53ec540da1a1a2e4da979e3e5fe2f92a257/lib/pdfkit/pdfkit.rb%23L55-L58"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pdfkit/pdfkit/blob/master/lib/pdfkit/source.rb%23L44-L50"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pdfkit/pdfkit/releases/tag/v0.8.7"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/pdfkit/CVE-2022-25765.yml"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C36GAV3TKM3JXV6UVMLMTTDRCPKSNETQ"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ESWB6SX7HYWQ54UGBGQOZ7G24O6RAOKD"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JFB2BFKH5SUGRKXMY6PWRQNGKZML7GDT"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-RUBY-PDFKIT-2869795"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/171746/pdfkit-0.8.7.2-Command-Injection.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-77" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-09-15T03:30:40Z",
    "nvd_published_at" : "2022-09-09T05:15:00Z"
  }
}