CVE-2019-10154: Moodle/moodle Moodle All Messaging Conversations Could Vulnerability

HIGH
Advisory Identifier: GHSA-ww45-x87c-wgff
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CVSS 7.5
CWE-285
Published
Advisory Summary

CVE-2019-10154 is a HIGH (CVSS 7.5) moodle all messaging conversations could vulnerability (CWE-285: Improper Authorization) affecting Moodle/moodle libraries in the Packagist ecosystem. The issue involves moodle all messaging conversations could be viewed. Remediation is available by upgrading affected packages to version 3.6.4.

CVE-2019-10154 at a Glance

CVE Identifier CVE-2019-10154
GHSA Identifier GHSA-ww45-x87c-wgff
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-285: Improper Authorization
Affected Product Moodle/moodle
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:N/A:N).

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 None (I:N)
Availability None (A:N)

How to Fix CVE-2019-10154

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

moodle/moodle fixed: 3.6.4 
Upgrade moodle/moodle to 3.6.4
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 moodle/moodle

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-10154, inspect your project dependencies for Moodle/moodle:

inspect dependencies for moodle/moodle

Analyze the terminal output to locate any version of Moodle/moodle in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.6.4), 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-285: Improper Authorization, where the product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. In Moodle/moodle, 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 flaw was found in Moodle before versions 3.7, 3.6.4. A web service fetching messages was not restricted to the current user's conversations.

CVE-2019-10154 Affected Moodle/moodle Versions

1 component(s)
Fixed Versions:
3.6.4
Product / Package Ecosystem Affected Versions Fixed Version
moodle/moodle
 Packagist
≥ 3.6
< 3.6.4
3.6.4

References

NVD — CVE-2019-10154 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10154
Security Fix Commit FIX COMMIT
https://github.com/moodle/moodle/commit/2904a7f851da8e66be12f41d55068bf07817fbd6
Security Fix Commit FIX COMMIT
https://github.com/moodle/moodle/commit/a3d19efab4aff83c07db9f0ad34c8f0e1f29c64c
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10154
Moodle/moodle Source Repository REPOSITORY
https://github.com/moodle/moodle
moodle.org/mod/forum/discuss.p... WEB
https://moodle.org/mod/forum/discuss.php?d=386521

Frequently Asked Questions

What is CVE-2019-10154?
CVE-2019-10154 is a security vulnerability in Moodle/moodle involving Moodle all messaging conversations could be viewed under CWE-285: Improper Authorization.
Which Moodle/moodle versions are affected?
Affected versions include releases prior to 3.6.4 across affected packages: moodle/moodle.
What version fixes CVE-2019-10154?
Upgrading to 3.6.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is moodle/moodle affected?
Yes, moodle/moodle is affected in releases prior to 3.6.4. Upgrade your dependency to 3.6.4 or later.
What is the CVSS score of CVE-2019-10154?
CVE-2019-10154 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2019-10154?
CVE-2019-10154 is classified under CWE-285: Improper Authorization (The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Packagist dependencies for CVE-2019-10154?
Run the dependency tree command: 'inspect dependencies for moodle/moodle'. 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-ww45-x87c-wgff",
  "modified" : "2024-01-26T20:46:23Z",
  "published" : "2022-05-24T16:48:41Z",
  "aliases" : [ "CVE-2019-10154" ],
  "summary" : "Moodle all messaging conversations could be viewed",
  "details" : "A flaw was found in Moodle before versions 3.7, 3.6.4. A web service fetching messages was not restricted to the current user's conversations.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.6"
      }, {
        "fixed" : "3.6.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-10154"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moodle/moodle/commit/2904a7f851da8e66be12f41d55068bf07817fbd6"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moodle/moodle/commit/a3d19efab4aff83c07db9f0ad34c8f0e1f29c64c"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10154"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/moodle/moodle"
  }, {
    "type" : "WEB",
    "url" : "https://moodle.org/mod/forum/discuss.php?d=386521"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-285" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-26T20:46:23Z",
    "nvd_published_at" : "2019-06-26T19:15:00Z"
  }
}