CVE-2020-5297: October/cms Upload Whitelisted Files To Any Vulnerability

LOW
Advisory Identifier: GHSA-9722-rr68-rfpg
Share
CVSS 3.4
CWE-610 CWE-73
Published
Advisory Summary

CVE-2020-5297 is a LOW (CVSS 3.4) upload whitelisted files to any vulnerability (CWE-610: Externally Controlled Reference to a Resource in Another Sphere) affecting October/cms libraries in the Packagist ecosystem. The issue involves upload whitelisted files to any directory in octobercms. Remediation is available by upgrading affected packages to version 1.0.466.

CVE-2020-5297 at a Glance

CVE Identifier CVE-2020-5297
GHSA Identifier GHSA-9722-rr68-rfpg
Severity LOW
CVSS v3.1 Base Score 3.4
CWE Classification CWE-610: Externally Controlled Reference to a Resource in Another Sphere
Affected Product October/cms
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 3.4

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2020-5297

To remediate this vulnerability, upgrade all affected October/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.

october/cms fixed: 1.0.466 
Upgrade october/cms to 1.0.466
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 october/cms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-5297, inspect your project dependencies for October/cms:

inspect dependencies for october/cms

Analyze the terminal output to locate any version of October/cms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.466), 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-610: Externally Controlled Reference to a Resource in Another Sphere, where the product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere. In October/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

### Impact An attacker can exploit this vulnerability to upload jpg, jpeg, bmp, png, webp, gif, ico, css, js, woff, woff2, svg, ttf, eot, json, md, less, sass, scss, xml files to any directory of an October CMS server. The vulnerability is only exploitable by an authenticated backend user with the `cms.manage_assets` permission. ### Patches Issue has been patched in Build 466 (v1.0.466). ### Workarounds Apply https://github.com/octobercms/october/commit/6711dae8ef70caf0e94cec434498012a2ccd86b8 to your installation manually if unable to upgrade to Build 466. ### References Reported by [Sivanesh Ashok](https://stazot.com/) ### For more information If you have any questions or comments about this advisory: * Email us at [hello@octobercms.com](mailto:hello@octobercms.com) ### Threat assessment: <img width="1241" alt="Screen Shot 2020-03-31 at 12 21 10 PM" src="https://user-images.githubusercontent.com/7253840/78061230-255f5400-734a-11ea-92b4-1120f6960505.png">

CVE-2020-5297 Affected October/cms Versions

1 component(s)
Fixed Versions:
1.0.466
Product / Package Ecosystem Affected Versions Fixed Version
october/cms
 Packagist
≥ 1.0.319
< 1.0.466
1.0.466

References

GitHub Advisory / Wiki ADVISORY
https://github.com/octobercms/october/security/advisories/GHSA-9722-rr68-rfpg
NVD — CVE-2020-5297 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-5297
Security Fix Commit FIX COMMIT
https://github.com/octobercms/october/commit/6711dae8ef70caf0e94cec434498012a2ccd86b8
October/cms Security Information SECURITY
http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-Deletion-CSV-Injection.html
seclists.org/fulldisclosure/2020... WEB
http://seclists.org/fulldisclosure/2020/Aug/2

Frequently Asked Questions

What is CVE-2020-5297?
CVE-2020-5297 is a security vulnerability in October/cms involving Upload whitelisted files to any directory in OctoberCMS under CWE-610: Externally Controlled Reference to a Resource in Another Sphere.
Which October/cms versions are affected?
Affected versions include releases prior to 1.0.466 across affected packages: october/cms.
What version fixes CVE-2020-5297?
Upgrading to 1.0.466 (or the latest patched release for your respective branch) resolves the vulnerability.
Is october/cms affected?
Yes, october/cms is affected in releases prior to 1.0.466. Upgrade your dependency to 1.0.466 or later.
What is the CVSS score of CVE-2020-5297?
CVE-2020-5297 has a CVSS v3.1 base score of 3.4 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N.
What CWE is associated with CVE-2020-5297?
CVE-2020-5297 is classified under CWE-610: Externally Controlled Reference to a Resource in Another Sphere (The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.).
How can I check Packagist dependencies for CVE-2020-5297?
Run the dependency tree command: 'inspect dependencies for october/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-9722-rr68-rfpg",
  "modified" : "2021-03-04T18:26:59Z",
  "published" : "2020-06-03T21:58:27Z",
  "aliases" : [ "CVE-2020-5297" ],
  "summary" : "Upload whitelisted files to any directory in OctoberCMS",
  "details" : "### Impact\nAn attacker can exploit this vulnerability to upload jpg, jpeg, bmp, png, webp, gif, ico, css, js, woff, woff2, svg, ttf, eot, json, md, less, sass, scss, xml files to any directory of an October CMS server. The vulnerability is only exploitable by an authenticated backend user with the `cms.manage_assets` permission.\n\n### Patches\nIssue has been patched in Build 466 (v1.0.466).\n\n### Workarounds\nApply https://github.com/octobercms/october/commit/6711dae8ef70caf0e94cec434498012a2ccd86b8 to your installation manually if unable to upgrade to Build 466.\n\n### References\nReported by [Sivanesh Ashok](https://stazot.com/)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at [hello@octobercms.com](mailto:hello@octobercms.com)\n\n### Threat assessment:\n<img width=\"1241\" alt=\"Screen Shot 2020-03-31 at 12 21 10 PM\" src=\"https://user-images.githubusercontent.com/7253840/78061230-255f5400-734a-11ea-92b4-1120f6960505.png\">",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "october/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0.319"
      }, {
        "fixed" : "1.0.466"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/octobercms/october/security/advisories/GHSA-9722-rr68-rfpg"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-5297"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/octobercms/october/commit/6711dae8ef70caf0e94cec434498012a2ccd86b8"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-Deletion-CSV-Injection.html"
  }, {
    "type" : "WEB",
    "url" : "http://seclists.org/fulldisclosure/2020/Aug/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-610", "CWE-73" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-03T21:26:41Z",
    "nvd_published_at" : "2020-06-03T22:15:00Z"
  }
}