CVE-2020-11063: Typo3/cms core Information Disclosure Vulnerability

LOW
Advisory Identifier: GHSA-347x-877p-hcwx
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CVSS 3.7
CWE-204 CWE-203
Published
Advisory Summary

CVE-2020-11063 is a LOW (CVSS 3.7) information disclosure vulnerability (CWE-204: Observable Response Discrepancy) affecting Typo3/cms core libraries in the Packagist ecosystem. The issue involves information disclosure in password reset. Remediation is available by upgrading affected packages to version 10.4.2.

CVE-2020-11063 at a Glance

CVE Identifier CVE-2020-11063
GHSA Identifier GHSA-347x-877p-hcwx
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-204: Observable Response Discrepancy
Affected Product Typo3/cms core
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 3.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
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-2020-11063

To remediate this vulnerability, upgrade all affected Typo3/cms core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

typo3/cms-core fixed: 10.4.2 
Upgrade typo3/cms-core to 10.4.2
typo3/cms fixed: 10.4.2 
Upgrade typo3/cms to 10.4.2
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 typo3/cms-core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-11063, inspect your project dependencies for Typo3/cms core:

inspect dependencies for typo3/cms-core

Analyze the terminal output to locate any version of Typo3/cms core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 10.4.2), 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-204: Observable Response Discrepancy, where the product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere. In Typo3/cms core, 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 TYPO3 CMS 10.4.0 through 10.4.1, it has been discovered that time-based attacks can be used with the password reset functionality for backend users. This allows an attacker to mount user enumeration based on email addresses assigned to backend user accounts. This has been fixed in 10.4.2. ### References * https://typo3.org/security/advisory/typo3-core-sa-2020-001

CVE-2020-11063 Affected Typo3/cms core Versions

2 component(s)
Fixed Versions:
10.4.2
Product / Package Ecosystem Affected Versions Fixed Version
typo3/cms-core
 Packagist
≥ 10.0.0
< 10.4.2
10.4.2
typo3/cms
 Packagist
≥ 10.0.0
< 10.4.2
10.4.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-347x-877p-hcwx
GitHub Advisory / Wiki ADVISORY
https://github.com/TYPO3/typo3/security/advisories/GHSA-347x-877p-hcwx
NVD — CVE-2020-11063 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-11063
Security Fix Commit FIX COMMIT
https://github.com/TYPO3/typo3/commit/14929b98ecda0ce67329b0f25ca7c01ee85df574
Typo3/cms core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-11063.yaml
Typo3/cms core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-11063.yaml
Typo3/cms core Source Repository REPOSITORY
https://github.com/TYPO3/typo3
Typo3/cms core Security Information SECURITY
https://typo3.org/security/advisory/typo3-core-sa-2020-001

Frequently Asked Questions

What is CVE-2020-11063?
CVE-2020-11063 is a security vulnerability in Typo3/cms core involving Information Disclosure in Password Reset under CWE-204: Observable Response Discrepancy.
Which Typo3/cms core versions are affected?
Affected versions include releases prior to 10.4.2 across affected packages: typo3/cms-core, typo3/cms.
What version fixes CVE-2020-11063?
Upgrading to 10.4.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is typo3/cms-core affected?
Yes, typo3/cms-core is affected in releases prior to 10.4.2. Upgrade your dependency to 10.4.2 or later.
Is typo3/cms affected?
Yes, typo3/cms is affected in releases prior to 10.4.2. Upgrade your dependency to 10.4.2 or later.
What is the CVSS score of CVE-2020-11063?
CVE-2020-11063 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2020-11063?
CVE-2020-11063 is classified under CWE-204: Observable Response Discrepancy (The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.).
How can I check Packagist dependencies for CVE-2020-11063?
Run the dependency tree command: 'inspect dependencies for typo3/cms-core'. 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-347x-877p-hcwx",
  "modified" : "2024-12-03T21:36:01Z",
  "published" : "2020-05-13T22:19:21Z",
  "aliases" : [ "CVE-2020-11063" ],
  "summary" : "Information Disclosure in Password Reset",
  "details" : "In TYPO3 CMS 10.4.0 through 10.4.1, it has been discovered that time-based attacks can be used with the password reset functionality for backend users. This allows an attacker to mount user enumeration based on email addresses assigned to backend user accounts.\n\nThis has been fixed in 10.4.2.\n\n### References\n* https://typo3.org/security/advisory/typo3-core-sa-2020-001",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.0.0"
      }, {
        "fixed" : "10.4.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.0.0"
      }, {
        "fixed" : "10.4.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-347x-877p-hcwx"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/typo3/security/advisories/GHSA-347x-877p-hcwx"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-11063"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/typo3/commit/14929b98ecda0ce67329b0f25ca7c01ee85df574"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-11063.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-11063.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TYPO3/typo3"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-core-sa-2020-001"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-203", "CWE-204" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-05-13T22:16:54Z",
    "nvd_published_at" : "2020-05-13T23:15:11Z"
  }
}