CVE-2022-30600: Moodle/moodle Incorrect Calculation Vulnerability

CRITICAL
Advisory Identifier: GHSA-w37f-pvvx-wcwm
CVSS 9.8
CWE-682
Published
Advisory Summary

CVE-2022-30600 is a CRITICAL (CVSS 9.8) incorrect calculation vulnerability (CWE-682: Incorrect Calculation) affecting Moodle/moodle libraries in the Packagist ecosystem. The issue involves incorrect calculation in moodle. Remediation is available by upgrading affected packages to version 4.0.1, 3.9.14, 3.10.11, 3.11.7.

CVE-2022-30600 at a Glance

CVE Identifier CVE-2022-30600
GHSA Identifier GHSA-w37f-pvvx-wcwm
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-682: Incorrect Calculation
Affected Product Moodle/moodle
Package Ecosystem Packagist
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-2022-30600

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: 4.0.1
Upgrade moodle/moodle to 4.0.1
moodle/moodle fixed: 3.9.14
Upgrade moodle/moodle to 3.9.14
moodle/moodle fixed: 3.10.11
Upgrade moodle/moodle to 3.10.11
moodle/moodle fixed: 3.11.7
Upgrade moodle/moodle to 3.11.7
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-2022-30600, 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 4.0.1), 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-682: Incorrect Calculation, where the product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management. 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 where logic used to count failed login attempts could result in the account lockout threshold being bypassed.

CVE-2022-30600 Affected Moodle/moodle Versions

4 component(s)
Fixed Versions:
4.0.13.9.143.10.113.11.7
Product / Package Ecosystem Affected Versions Fixed Version
moodle/moodle
Packagist
≥ 4.0
< 4.0.1
4.0.1
moodle/moodle
Packagist
≥ 3.9
< 3.9.14
3.9.14
moodle/moodle
Packagist
≥ 3.10
< 3.10.11
3.10.11
moodle/moodle
Packagist
≥ 3.11
< 3.11.7
3.11.7

References

Frequently Asked Questions

What is CVE-2022-30600?
CVE-2022-30600 is a security vulnerability in Moodle/moodle involving Incorrect Calculation in moodle under CWE-682: Incorrect Calculation.
Which Moodle/moodle versions are affected?
Affected versions include releases prior to 4.0.1, 3.9.14, 3.10.11, 3.11.7 across affected packages: moodle/moodle.
What version fixes CVE-2022-30600?
Upgrading to 4.0.1, 3.9.14, 3.10.11, 3.11.7 (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 4.0.1, 3.9.14, 3.10.11, 3.11.7. Upgrade your dependency to 4.0.1, 3.9.14, 3.10.11, 3.11.7 or later.
What is the CVSS score of CVE-2022-30600?
CVE-2022-30600 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-2022-30600?
CVE-2022-30600 is classified under CWE-682: Incorrect Calculation (The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.).
How can I check Packagist dependencies for CVE-2022-30600?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-w37f-pvvx-wcwm",
  "modified" : "2022-06-02T14:50:29Z",
  "published" : "2022-05-19T00:00:16Z",
  "aliases" : [ "CVE-2022-30600" ],
  "summary" : "Incorrect Calculation in moodle",
  "details" : "A flaw was found in moodle where logic used to count failed login attempts could result in the account lockout threshold being bypassed.",
  "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" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0"
      }, {
        "fixed" : "4.0.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.9"
      }, {
        "fixed" : "3.9.14"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.10"
      }, {
        "fixed" : "3.10.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.11"
      }, {
        "fixed" : "3.11.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-30600"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moodle/moodle/commit/59b5858da200f63ecb59a9113af2b99ef1496fe5"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2083613"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/moodle/moodle"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGF35EN5K2R6X3NTY3XPZSJ3UDASMXI6"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PIMSIRKCFLIC646K4GMUSZU7THOUVPAJ"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QCTWSE3JDMSYL7DPCMXMMJEXZSS6VIA5"
  }, {
    "type" : "WEB",
    "url" : "https://moodle.org/mod/forum/discuss.php?d=434582"
  }, {
    "type" : "WEB",
    "url" : "http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-73736"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-682" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-02T14:50:29Z",
    "nvd_published_at" : "2022-05-18T18:15:00Z"
  }
}