GHSA-f43j-8hq4-2xj9: Silverstripe/framework Silverstripe/framework Uploaded PHP Script Execution Vulnerability

MODERATE
Share
CWE-20
Published
Advisory Summary

GHSA-f43j-8hq4-2xj9 is a MODERATE silverstripe/framework uploaded php script execution vulnerability (CWE-20: Improper Input Validation) affecting Silverstripe/framework libraries in the Packagist ecosystem. The issue involves silverstripe/framework uploaded php script execution in assets. Remediation is available by upgrading affected packages to version 4.0.4, 4.1.1.

GHSA-f43j-8hq4-2xj9 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-f43j-8hq4-2xj9
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-20: Improper Input Validation
Affected Product Silverstripe/framework
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix GHSA-f43j-8hq4-2xj9

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

silverstripe/framework fixed: 4.0.4 
Upgrade silverstripe/framework to 4.0.4
silverstripe/framework fixed: 4.1.1 
Upgrade silverstripe/framework to 4.1.1
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 silverstripe/framework

How to Check if You Are Affected

To determine whether your application is affected by GHSA-f43j-8hq4-2xj9, inspect your project dependencies for Silverstripe/framework:

inspect dependencies for silverstripe/framework

Analyze the terminal output to locate any version of Silverstripe/framework in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.0.4), 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-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Silverstripe/framework, 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

A weakness in the .htaccess rules preventing requests to uploaded PHP scripts allows PHP scripts that had made their way into the assets directory to be successfully executed through the use of a specially crafted URL. There are protections in place to disallow upload of PHP scripts through the CMS, meaning this weakness does not lead to direct vulnerabilities. In addition, sites hosted on the New Zealand Common Web Platform or SilverStripe Platform have additional configuration in place which prevents PHP script execution in assets, even in a malicious party manages to upload these into the folder.

GHSA-f43j-8hq4-2xj9 Affected Silverstripe/framework Versions

2 component(s)
Fixed Versions:
4.0.44.1.1
Product / Package Ecosystem Affected Versions Fixed Version
silverstripe/framework
 Packagist
≥ 4.0.0-rc1
< 4.0.4
4.0.4
silverstripe/framework
 Packagist
≥ 4.1.0-rc1
< 4.1.1
4.1.1

References

Security Fix Commit FIX COMMIT
https://github.com/silverstripe/silverstripe-framework/commit/5b7eca2b6327556e2d5ad31bb00511b187e5992a
Silverstripe/framework Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/SS-2018-012-1.yaml
Silverstripe/framework Source Repository REPOSITORY
https://github.com/silverstripe/silverstripe-framework
Silverstripe/framework Release RELEASE
https://www.silverstripe.org/download/security-releases/ss-2018-012

Frequently Asked Questions

What is GHSA-f43j-8hq4-2xj9?
GHSA-f43j-8hq4-2xj9 is a security vulnerability in Silverstripe/framework involving silverstripe/framework uploaded PHP script execution in assets under CWE-20: Improper Input Validation.
Which Silverstripe/framework versions are affected?
Affected versions include releases prior to 4.0.4, 4.1.1 across affected packages: silverstripe/framework.
What version fixes GHSA-f43j-8hq4-2xj9?
Upgrading to 4.0.4, 4.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is silverstripe/framework affected?
Yes, silverstripe/framework is affected in releases prior to 4.0.4, 4.1.1. Upgrade your dependency to 4.0.4, 4.1.1 or later.
What CWE is associated with GHSA-f43j-8hq4-2xj9?
GHSA-f43j-8hq4-2xj9 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Packagist dependencies for GHSA-f43j-8hq4-2xj9?
Run the dependency tree command: 'inspect dependencies for silverstripe/framework'. 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-f43j-8hq4-2xj9",
  "modified" : "2024-05-27T23:16:00Z",
  "published" : "2024-05-27T23:16:00Z",
  "aliases" : [ ],
  "summary" : "silverstripe/framework uploaded PHP script execution in assets",
  "details" : "A weakness in the .htaccess rules preventing requests to uploaded PHP scripts allows PHP scripts that had made their way into the assets directory to be successfully executed through the use of a specially crafted URL. There are protections in place to disallow upload of PHP scripts through the CMS, meaning this weakness does not lead to direct vulnerabilities.\n\nIn addition, sites hosted on the New Zealand Common Web Platform or SilverStripe Platform have additional configuration in place which prevents PHP script execution in assets, even in a malicious party manages to upload these into the folder.\n\n",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "silverstripe/framework"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0-rc1"
      }, {
        "fixed" : "4.0.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "silverstripe/framework"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.1.0-rc1"
      }, {
        "fixed" : "4.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/silverstripe/silverstripe-framework/commit/5b7eca2b6327556e2d5ad31bb00511b187e5992a"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/SS-2018-012-1.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/silverstripe/silverstripe-framework"
  }, {
    "type" : "WEB",
    "url" : "https://www.silverstripe.org/download/security-releases/ss-2018-012"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-27T23:16:00Z",
    "nvd_published_at" : null
  }
}