Vulnerabilities in pkg:npm/@netlify/ipx

PACKAGE
Advisory Identifier: GHSA-9jjv-524m-jm98
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Advisory Summary

CVE-2022-39239 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting @netlify/ipx libraries in the npm ecosystem. The issue involves @netlify/ipx vulnerable to full response ssrf and stored xss via cache poisoning and improper host validation. Remediation is available by upgrading affected packages to version 1.2.3.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/@netlify/ipx

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/@netlify/ipx. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-9jjv-524m-jm98 CVE-2022-39239 MODERATE @netlify/ipx vulnerable to Full Response SSRF and Stored XSS via Cache Poisoning and Improper Host Validation

CVE-2022-39239 at a Glance

CVE Identifier CVE-2022-39239
GHSA Identifier GHSA-9jjv-524m-jm98
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product @netlify/ipx
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.1

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:L/I:L/A:N).

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 Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2022-39239

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

@netlify/ipx fixed: 1.2.3 
npm install @netlify/ipx@1.2.3
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 @netlify/ipx

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2022-39239, inspect your project dependencies using npm:

npm ls @netlify/ipx

Analyze the terminal output to locate any version of @netlify/ipx in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.2.3), your application is affected.

Note: The npm ls @netlify/ipx 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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In @netlify/ipx, 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

### Impact By sending specially crafted headers an attacker can bypass the source image domain allowlist, causing the handler to load and return arbitrary images. Because the response is cached globally, this image will then be served to visitors without requiring those headers to be set. XSS can be achieved by requesting a malicious SVG with embedded scripts, which would then be served from the site domain. Note that this does not apply to images loaded in `<img>` tags, as scripts do not execute in this context. The image URL can be set in the header independently of the request URL, meaning any site images that have not previously been cached can have their cache poisoned. ### Patches This problem has been fixed in version 1.2.3 ### Workarounds The problem is no longer exploitable on Netlify as the CDN now sanitizes the relevant header. Cached content can be cleared by re-deploying the site.

CVE-2022-39239 Affected @netlify/ipx Versions

1 component(s)
Fixed Versions:
1.2.3
Product / Package Ecosystem Affected Versions Fixed Version
@netlify/ipx
npm/@netlify/ipx
npm
< 1.2.3
1.2.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/netlify/netlify-ipx/security/advisories/GHSA-9jjv-524m-jm98
NVD — CVE-2022-39239 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39239
@netlify/ipx Source Repository REPOSITORY
https://github.com/netlify/netlify-ipx/pull/61
Security Fix Commit FIX COMMIT
https://github.com/netlify/netlify-ipx/commit/dfa7505a8d47a76fd527570dc40737a61500759b
@netlify/ipx Source Repository REPOSITORY
https://github.com/netlify/netlify-ipx
@netlify/ipx Release RELEASE
https://github.com/netlify/netlify-ipx/releases/tag/v1.2.3

Frequently Asked Questions

What is CVE-2022-39239?
CVE-2022-39239 is a security vulnerability in @netlify/ipx involving @netlify/ipx vulnerable to Full Response SSRF and Stored XSS via Cache Poisoning and Improper Host Validation under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which @netlify/ipx versions are affected?
Affected versions include releases prior to 1.2.3 across affected packages: @netlify/ipx.
What version fixes CVE-2022-39239?
Upgrading to 1.2.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @netlify/ipx affected?
Yes, @netlify/ipx is affected in releases prior to 1.2.3. Upgrade your dependency to 1.2.3 or later.
What is the CVSS score of CVE-2022-39239?
CVE-2022-39239 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2022-39239?
CVE-2022-39239 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check npm dependencies for CVE-2022-39239?
Run the dependency tree command: 'npm ls @netlify/ipx'. 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-9jjv-524m-jm98",
  "modified" : "2022-09-28T03:32:53Z",
  "published" : "2022-09-21T21:42:01Z",
  "aliases" : [ "CVE-2022-39239" ],
  "summary" : "@netlify/ipx vulnerable to Full Response SSRF and Stored XSS via Cache Poisoning and Improper Host Validation",
  "details" : "### Impact\n\nBy sending specially crafted headers an attacker can bypass the source image domain allowlist, causing the handler to load and return arbitrary images. Because the response is cached globally, this image will then be served to visitors without requiring those headers to be set. XSS can be achieved by requesting a malicious SVG with embedded scripts, which would then be served from the site domain. Note that this does not apply to images loaded in `<img>` tags, as scripts do not execute in this context. The image URL can be set in the header independently of the request URL, meaning any site images that have not previously been cached can have their cache poisoned.\n\n### Patches\nThis problem has been fixed in version 1.2.3\n\n### Workarounds\n\nThe problem is no longer exploitable on Netlify as the CDN now sanitizes the relevant header. Cached content can be cleared by re-deploying the site.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@netlify/ipx"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.2.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/netlify/netlify-ipx/security/advisories/GHSA-9jjv-524m-jm98"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-39239"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/netlify/netlify-ipx/pull/61"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/netlify/netlify-ipx/commit/dfa7505a8d47a76fd527570dc40737a61500759b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/netlify/netlify-ipx"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/netlify/netlify-ipx/releases/tag/v1.2.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-09-21T21:42:01Z",
    "nvd_published_at" : "2022-09-23T08:15:00Z"
  }
}