CVE-2018-10889: Moodle/moodle Moodle Sensitive Information Disclosure Vulnerability

MODERATE
Advisory Identifier: GHSA-wmvq-q9h8-7j4g
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CVSS 5.3
CWE-532
Published
Advisory Summary

CVE-2018-10889 is a MODERATE (CVSS 5.3) moodle sensitive information disclosure vulnerability (CWE-532: Insertion of Sensitive Information into Log File) affecting Moodle/moodle libraries in the Packagist ecosystem. The issue involves moodle sensitive information disclosure. Remediation is available by upgrading affected packages to version 3.5.1, 3.4.4, 3.3.7.

CVE-2018-10889 at a Glance

CVE Identifier CVE-2018-10889
GHSA Identifier GHSA-wmvq-q9h8-7j4g
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-532: Insertion of Sensitive Information into Log File
Affected Product Moodle/moodle
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2018-10889

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: 3.5.1 
Upgrade moodle/moodle to 3.5.1
moodle/moodle fixed: 3.4.4 
Upgrade moodle/moodle to 3.4.4
moodle/moodle fixed: 3.3.7 
Upgrade moodle/moodle to 3.3.7
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-2018-10889, 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 3.5.1), 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-532: Insertion of Sensitive Information into Log File, where the product writes sensitive information to a log file. 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 3.5.1, 3.4.4, 3.3.7. No option existed to omit logs from data privacy exports, which may contain details of other users who interacted with the requester.

CVE-2018-10889 Affected Moodle/moodle Versions

3 component(s)
Fixed Versions:
3.5.13.4.43.3.7
Product / Package Ecosystem Affected Versions Fixed Version
moodle/moodle
 Packagist
≥ 3.5
< 3.5.1
All 1 versions
3.5
3.5.1
moodle/moodle
 Packagist
≥ 3.4.3
< 3.4.4
All 1 versions
3.4.3
3.4.4
moodle/moodle
 Packagist
≥ 3.3
< 3.3.7
3.3.7

References

NVD — CVE-2018-10889 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-10889
Security Fix Commit FIX COMMIT
https://github.com/moodle/moodle/commit/720d5b3b8559a97b7d6dd77351fb8d1cd8890f14
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10889
moodle.org/mod/forum/discuss.p... WEB
https://moodle.org/mod/forum/discuss.php?d=373369
Moodle/moodle Security Information SECURITY
https://web.archive.org/web/20210124185814/http://www.securityfocus.com/bid/104733

Frequently Asked Questions

What is CVE-2018-10889?
CVE-2018-10889 is a security vulnerability in Moodle/moodle involving Moodle sensitive information disclosure under CWE-532: Insertion of Sensitive Information into Log File.
Which Moodle/moodle versions are affected?
Affected versions include releases prior to 3.5.1, 3.4.4, 3.3.7 across affected packages: moodle/moodle.
What version fixes CVE-2018-10889?
Upgrading to 3.5.1, 3.4.4, 3.3.7 (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 3.5.1, 3.4.4, 3.3.7. Upgrade your dependency to 3.5.1, 3.4.4, 3.3.7 or later.
What is the CVSS score of CVE-2018-10889?
CVE-2018-10889 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2018-10889?
CVE-2018-10889 is classified under CWE-532: Insertion of Sensitive Information into Log File (The product writes sensitive information to a log file.).
How can I check Packagist dependencies for CVE-2018-10889?
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-wmvq-q9h8-7j4g",
  "modified" : "2023-07-21T21:38:41Z",
  "published" : "2022-05-13T01:34:55Z",
  "aliases" : [ "CVE-2018-10889" ],
  "summary" : "Moodle sensitive information disclosure",
  "details" : "A flaw was found in moodle before versions 3.5.1, 3.4.4, 3.3.7. No option existed to omit logs from data privacy exports, which may contain details of other users who interacted with the requester.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.5"
      }, {
        "fixed" : "3.5.1"
      } ]
    } ],
    "versions" : [ "3.5" ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.4.3"
      }, {
        "fixed" : "3.4.4"
      } ]
    } ],
    "versions" : [ "3.4.3" ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.3"
      }, {
        "fixed" : "3.3.7"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.3.6"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-10889"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moodle/moodle/commit/720d5b3b8559a97b7d6dd77351fb8d1cd8890f14"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10889"
  }, {
    "type" : "WEB",
    "url" : "https://moodle.org/mod/forum/discuss.php?d=373369"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20210124185814/http://www.securityfocus.com/bid/104733"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-532" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-21T21:38:41Z",
    "nvd_published_at" : "2018-07-10T18:29:00Z"
  }
}