CVE-2020-8132: Pdf image Improper Input Validation And Code Vulnerability

HIGH
Advisory Identifier: GHSA-rv7p-mmwq-x674
Share
CVSS 9.8
CWE-94 CWE-20
Published
Advisory Summary

CVE-2020-8132 is a HIGH (CVSS 9.8) improper input validation and code vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Pdf image libraries in the npm ecosystem. The issue involves improper input validation and code injection in pdf-image. Remediation is available in the latest vendor maintenance releases.

CVE-2020-8132 at a Glance

CVE Identifier CVE-2020-8132
GHSA Identifier GHSA-rv7p-mmwq-x674
Severity HIGH
CVSS v3.1 Base Score 9.8
CWE Classification CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Product Pdf image
Package Ecosystem npm
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-2020-8132

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

pdf-image fixed: Latest secure release 
npm install pdf-image@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: 

npm ls pdf-image

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-8132, inspect your project dependencies using npm:

npm ls pdf-image

Analyze the terminal output to locate any version of Pdf image 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: The npm ls pdf-image command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In Pdf image, 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

Lack of input validation in pdf-image npm package version <= 2.0.0 may allow an attacker to run arbitrary code if PDF file path is constructed based on untrusted user input.

CVE-2020-8132 Affected Pdf image Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
pdf-image
npm/pdf-image
npm
≤ 2.0.0

References

NVD — CVE-2020-8132 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8132
hackerone.com/reports/781664 WEB
https://hackerone.com/reports/781664

Frequently Asked Questions

What is CVE-2020-8132?
CVE-2020-8132 is a security vulnerability in Pdf image involving Improper Input Validation and Code Injection in pdf-image under CWE-94: Improper Control of Generation of Code ('Code Injection').
Which Pdf image versions are affected?
Affected versions include releases prior to current release patches across affected packages: pdf-image.
What version fixes CVE-2020-8132?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is pdf-image affected?
Yes, pdf-image 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-2020-8132?
CVE-2020-8132 has a CVSS v3.1 base score of 9.8 (HIGH) 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-2020-8132?
CVE-2020-8132 is classified under CWE-94: Improper Control of Generation of Code ('Code Injection') (The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.).
How can I check npm dependencies for CVE-2020-8132?
Run the dependency tree command: 'npm ls pdf-image'. 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-rv7p-mmwq-x674",
  "modified" : "2021-04-20T22:13:23Z",
  "published" : "2021-05-10T18:46:58Z",
  "aliases" : [ "CVE-2020-8132" ],
  "summary" : "Improper Input Validation and Code Injection in pdf-image",
  "details" : "Lack of input validation in pdf-image npm package version <= 2.0.0 may allow an attacker to run arbitrary code if PDF file path is constructed based on untrusted user input.",
  "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" : "npm",
      "name" : "pdf-image"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-8132"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/781664"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20", "CWE-94" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-04-20T22:13:23Z",
    "nvd_published_at" : "2020-02-28T20:15:00Z"
  }
}