CVE-2021-25972: Camaleon cms Camaleon CMS Vulnerable To Server-Side Vulnerability

MODERATE
Advisory Identifier: GHSA-vx6p-q4gj-x6xx
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CVSS 4.9
CWE-918
Published
Advisory Summary

CVE-2021-25972 is a MODERATE (CVSS 4.9) camaleon cms vulnerable to server-side vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Camaleon cms libraries in the RubyGems ecosystem. The issue involves camaleon cms vulnerable to server-side request forgery. Remediation is available by upgrading affected packages to version 2.6.0.1.

CVE-2021-25972 at a Glance

CVE Identifier CVE-2021-25972
GHSA Identifier GHSA-vx6p-q4gj-x6xx
Severity MODERATE
CVSS v3.1 Base Score 4.9
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Camaleon cms
Package Ecosystem RubyGems
Published Date
Last Updated

Security Impact

CVSS: 4.9

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:N/S:U/C:H/I:N/A:N).

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

How to Fix CVE-2021-25972

To remediate this vulnerability, upgrade all affected Camaleon 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.

camaleon_cms fixed: 2.6.0.1 
Upgrade camaleon_cms to 2.6.0.1
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 camaleon_cms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-25972, inspect your project dependencies for Camaleon cms:

inspect dependencies for camaleon_cms

Analyze the terminal output to locate any version of Camaleon cms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.6.0.1), 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-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Camaleon 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

In Camaleon CMS, versions 2.1.2.0 through 2.6.0, are vulnerable to Server-Side Request Forgery (SSRF) in the media upload feature, which allows admin users to fetch media files from external URLs but fails to validate URLs referencing to localhost or other internal servers. This allows attackers to read files stored in the internal server.

CVE-2021-25972 Affected Camaleon cms Versions

1 component(s)
Fixed Versions:
2.6.0.1
Product / Package Ecosystem Affected Versions Fixed Version
camaleon_cms
gem/camaleon_cms
RubyGems
≥ 2.1.2.0
< 2.6.0.1
2.6.0.1

References

NVD — CVE-2021-25972 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-25972
Security Fix Commit FIX COMMIT
https://github.com/owen2345/camaleon-cms/commit/5a252d537411fdd0127714d66c1d76069dc7e190
Camaleon cms Source Repository REPOSITORY
https://github.com/owen2345/camaleon-cms
Camaleon cms Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/camaleon_cms/CVE-2021-25972.yml
www.whitesourcesoftware.com/vulnerability-datab... WEB
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25972

Frequently Asked Questions

What is CVE-2021-25972?
CVE-2021-25972 is a security vulnerability in Camaleon cms involving Camaleon CMS vulnerable to Server-Side Request Forgery under CWE-918: Server-Side Request Forgery (SSRF).
Which Camaleon cms versions are affected?
Affected versions include releases prior to 2.6.0.1 across affected packages: camaleon_cms.
What version fixes CVE-2021-25972?
Upgrading to 2.6.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is camaleon_cms affected?
Yes, camaleon_cms is affected in releases prior to 2.6.0.1. Upgrade your dependency to 2.6.0.1 or later.
What is the CVSS score of CVE-2021-25972?
CVE-2021-25972 has a CVSS v3.1 base score of 4.9 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2021-25972?
CVE-2021-25972 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check RubyGems dependencies for CVE-2021-25972?
Run the dependency tree command: 'inspect dependencies for camaleon_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-vx6p-q4gj-x6xx",
  "modified" : "2023-01-26T23:52:12Z",
  "published" : "2022-05-24T19:18:04Z",
  "aliases" : [ "CVE-2021-25972" ],
  "summary" : "Camaleon CMS vulnerable to Server-Side Request Forgery",
  "details" : "In Camaleon CMS, versions 2.1.2.0 through 2.6.0, are vulnerable to Server-Side Request Forgery (SSRF) in the media upload feature, which allows admin users to fetch media files from external URLs but fails to validate URLs referencing to localhost or other internal servers. This allows attackers to read files stored in the internal server.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "camaleon_cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.1.2.0"
      }, {
        "fixed" : "2.6.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-25972"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/owen2345/camaleon-cms/commit/5a252d537411fdd0127714d66c1d76069dc7e190"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/owen2345/camaleon-cms"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/camaleon_cms/CVE-2021-25972.yml"
  }, {
    "type" : "WEB",
    "url" : "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25972"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-26T23:52:12Z",
    "nvd_published_at" : "2021-10-20T12:15:00Z"
  }
}