CVE-2017-20063: Elefant/cms Unrestricted Upload Of File With Vulnerability

HIGH
Advisory Identifier: GHSA-mwh6-g9wx-xcx3
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CVSS 8.8
CWE-434
Published
Advisory Summary

CVE-2017-20063 is a HIGH (CVSS 8.8) unrestricted upload of file with vulnerability (CWE-434: Unrestricted Upload of File with Dangerous Type) affecting Elefant/cms libraries in the Packagist ecosystem. The issue involves unrestricted upload of file with dangerous type in elefant cms. Remediation is available by upgrading affected packages to version 1.3.13.

CVE-2017-20063 at a Glance

CVE Identifier CVE-2017-20063
GHSA Identifier GHSA-mwh6-g9wx-xcx3
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-434: Unrestricted Upload of File with Dangerous Type
Affected Product Elefant/cms
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.8

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2017-20063

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

elefant/cms fixed: 1.3.13 
Upgrade elefant/cms to 1.3.13
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 elefant/cms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2017-20063, inspect your project dependencies for Elefant/cms:

inspect dependencies for elefant/cms

Analyze the terminal output to locate any version of Elefant/cms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.3.13), 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-434: Unrestricted Upload of File with Dangerous Type, where the product allows the upload or transfer of dangerous file types that are automatically processed within its environment. In Elefant/cms, 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 vulnerability was found in Elefant CMS 1.3.12-RC. It has been classified as critical. Affected is an unknown function of the file /filemanager/upload/drop of the component File Upload. The manipulation leads to improper privilege management. It is possible to launch the attack remotely. Upgrading to version 1.3.13 is able to address this issue. It is recommended to upgrade the affected component.

CVE-2017-20063 Affected Elefant/cms Versions

1 component(s)
Fixed Versions:
1.3.13
Product / Package Ecosystem Affected Versions Fixed Version
elefant/cms
 Packagist
< 1.3.13
1.3.13

References

NVD — CVE-2017-20063 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-20063
Elefant/cms Source Repository REPOSITORY
https://github.com/jbroadway/elefant
vuldb.com/ WEB
https://vuldb.com/?id.97260
seclists.org/fulldisclosure/2017... WEB
http://seclists.org/fulldisclosure/2017/Feb/39

Frequently Asked Questions

What is CVE-2017-20063?
CVE-2017-20063 is a security vulnerability in Elefant/cms involving Unrestricted Upload of File with Dangerous Type in Elefant CMS under CWE-434: Unrestricted Upload of File with Dangerous Type.
Which Elefant/cms versions are affected?
Affected versions include releases prior to 1.3.13 across affected packages: elefant/cms.
What version fixes CVE-2017-20063?
Upgrading to 1.3.13 (or the latest patched release for your respective branch) resolves the vulnerability.
Is elefant/cms affected?
Yes, elefant/cms is affected in releases prior to 1.3.13. Upgrade your dependency to 1.3.13 or later.
What is the CVSS score of CVE-2017-20063?
CVE-2017-20063 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2017-20063?
CVE-2017-20063 is classified under CWE-434: Unrestricted Upload of File with Dangerous Type (The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.).
How can I check Packagist dependencies for CVE-2017-20063?
Run the dependency tree command: 'inspect dependencies for elefant/cms'. 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-mwh6-g9wx-xcx3",
  "modified" : "2022-06-29T22:09:05Z",
  "published" : "2022-06-21T00:00:48Z",
  "aliases" : [ "CVE-2017-20063" ],
  "summary" : "Unrestricted Upload of File with Dangerous Type in Elefant CMS",
  "details" : "A vulnerability was found in Elefant CMS 1.3.12-RC. It has been classified as critical. Affected is an unknown function of the file /filemanager/upload/drop of the component File Upload. The manipulation leads to improper privilege management. It is possible to launch the attack remotely. Upgrading to version 1.3.13 is able to address this issue. It is recommended to upgrade the affected component.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "elefant/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.3.13"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-20063"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jbroadway/elefant"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?id.97260"
  }, {
    "type" : "WEB",
    "url" : "http://seclists.org/fulldisclosure/2017/Feb/39"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-434" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-29T22:09:05Z",
    "nvd_published_at" : "2022-06-20T05:15:00Z"
  }
}