CVE-2021-46384: Ms mcms Ms-mcms Vulnerability

CRITICAL
Advisory Identifier: GHSA-qwh6-xwj4-9cjg
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CVSS 9.8
CWE-287
Published
Advisory Summary

CVE-2021-46384 is a CRITICAL (CVSS 9.8) ms-mcms vulnerability (CWE-287: Improper Authentication) affecting Ms mcms libraries in the Maven ecosystem. The issue involves ms-mcms. Remediation is available by upgrading affected packages to version 5.2.6.

CVE-2021-46384 at a Glance

CVE Identifier CVE-2021-46384
GHSA Identifier GHSA-qwh6-xwj4-9cjg
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-287: Improper Authentication
Affected Product Ms mcms
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
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-2021-46384

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

net.mingsoft:ms-mcms fixed: 5.2.6 
<dependency>
    <groupId>net.mingsoft</groupId>
    <artifactId>ms-mcms</artifactId>
    <version>5.2.6</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=net.mingsoft

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2021-46384, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=net.mingsoft

Analyze the terminal output to locate any version of Ms mcms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.2.6), your application is affected.

Note: The mvn dependency:tree -Dincludes=net.mingsoft command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Ms mcms, 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

net.mingsoft:ms-mcms <=5.2.5 is affected by: RCE. The impact is: execute arbitrary code (remote). The attack vector is: ${"freemarker.template.utility.Execute"?new()("calc")}. ¶¶ MCMS has a pre-auth RCE vulnerability through which allows unauthenticated attacker with network access via http to compromise MCMS. Successful attacks of this vulnerability can result in takeover of MCMS.

CVE-2021-46384 Affected Ms mcms Versions

1 component(s)
Fixed Versions:
5.2.6
Product / Package Ecosystem Affected Versions Fixed Version
net.mingsoft:ms-mcms
maven/net.mingsoft/ms-mcms
Maven
< 5.2.6
5.2.6

References

NVD — CVE-2021-46384 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-46384
gitee.com/mingsoft/mcms/issue... WEB
https://gitee.com/mingSoft/MCMS/issues/I4QZ1O

Frequently Asked Questions

What is CVE-2021-46384?
CVE-2021-46384 is a security vulnerability in Ms mcms involving ms-mcms under CWE-287: Improper Authentication.
Which Ms mcms versions are affected?
Affected versions include releases prior to 5.2.6 across affected packages: net.mingsoft:ms-mcms.
What version fixes CVE-2021-46384?
Upgrading to 5.2.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ms-mcms affected?
Yes, net.mingsoft:ms-mcms is affected in releases prior to 5.2.6. Upgrade your dependency to 5.2.6 or later.
What is the CVSS score of CVE-2021-46384?
CVE-2021-46384 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2021-46384?
CVE-2021-46384 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Maven dependencies for CVE-2021-46384?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=net.mingsoft'. 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-qwh6-xwj4-9cjg",
  "modified" : "2022-03-14T22:46:48Z",
  "published" : "2022-03-05T00:00:41Z",
  "aliases" : [ "CVE-2021-46384" ],
  "summary" : "Remote code execution in net.mingsoft:ms-mcms",
  "details" : "net.mingsoft:ms-mcms <=5.2.5 is affected by: RCE. The impact is: execute arbitrary code (remote). The attack vector is: ${\"freemarker.template.utility.Execute\"?new()(\"calc\")}. ¶¶ MCMS has a pre-auth RCE vulnerability through which allows unauthenticated attacker with network access via http to compromise MCMS. Successful attacks of this vulnerability can result in takeover of MCMS.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "net.mingsoft:ms-mcms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.2.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-46384"
  }, {
    "type" : "WEB",
    "url" : "https://gitee.com/mingSoft/MCMS/issues/I4QZ1O"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-03-14T22:46:48Z",
    "nvd_published_at" : "2022-03-04T22:15:00Z"
  }
}