CVE-2020-26228: Typo3/cms core Cleartext Storage Of Session Identifier Vulnerability

HIGH
Advisory Identifier: GHSA-954j-f27r-cj52
CVSS 8.1
CWE-312
Published
Advisory Summary

CVE-2020-26228 is a HIGH (CVSS 8.1) cleartext storage of session identifier vulnerability (CWE-312: Cleartext Storage of Sensitive Information) affecting Typo3/cms core libraries in the Packagist ecosystem. The issue involves cleartext storage of session identifier. Remediation is available by upgrading affected packages to version 9.5.23, 10.4.10, 8.7.38.

CVE-2020-26228 at a Glance

CVE Identifier CVE-2020-26228
GHSA Identifier GHSA-954j-f27r-cj52
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-312: Cleartext Storage of Sensitive Information
Affected Product Typo3/cms core
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.1

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:H/I:H/A:H).

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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2020-26228

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: 9.5.23
Upgrade typo3/cms-core to 9.5.23
typo3/cms-core fixed: 10.4.10
Upgrade typo3/cms-core to 10.4.10
typo3/cms-core fixed: 8.7.38
Upgrade typo3/cms-core to 8.7.38
typo3/cms fixed: 10.4.10
Upgrade typo3/cms to 10.4.10
typo3/cms fixed: 9.5.23
Upgrade typo3/cms to 9.5.23
typo3/cms fixed: 8.7.38
Upgrade typo3/cms to 8.7.38
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-2020-26228, 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 9.5.23), 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-312: Cleartext Storage of Sensitive Information, where the product stores sensitive information in cleartext within a resource that might be accessible to another 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

User session identifiers were stored in cleartext - without processing of additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance SQL injection in any other component of the system. ### Solution Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described. ### Credits Thanks to TYPO3 security team member Helmut Hummel who reported this issue and to TYPO3 core & security team members Benni Mack & Oliver Hader as well as TYPO3 contributor Markus Klein who fixed the issue.

CVE-2020-26228 Affected Typo3/cms core Versions

6 component(s)
Fixed Versions:
9.5.2310.4.108.7.38
Product / Package Ecosystem Affected Versions Fixed Version
typo3/cms-core
Packagist
≥ 9.0.0
< 9.5.23
9.5.23
typo3/cms-core
Packagist
≥ 10.0.0
< 10.4.10
10.4.10
typo3/cms-core
Packagist
≥ 8.7.0
< 8.7.38
8.7.38
typo3/cms
Packagist
≥ 10.0.0
< 10.4.10
10.4.10
typo3/cms
Packagist
≥ 9.0.0
< 9.5.23
9.5.23
typo3/cms
Packagist
≥ 8.7.0
< 8.7.38
8.7.38

References

Frequently Asked Questions

What is CVE-2020-26228?
CVE-2020-26228 is a security vulnerability in Typo3/cms core involving Cleartext storage of session identifier under CWE-312: Cleartext Storage of Sensitive Information.
Which Typo3/cms core versions are affected?
Affected versions include releases prior to 9.5.23, 10.4.10, 8.7.38 across affected packages: typo3/cms-core, typo3/cms.
What version fixes CVE-2020-26228?
Upgrading to 9.5.23, 10.4.10, 8.7.38 (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 9.5.23, 10.4.10, 8.7.38. Upgrade your dependency to 9.5.23, 10.4.10, 8.7.38 or later.
Is typo3/cms affected?
Yes, typo3/cms is affected in releases prior to 10.4.10, 9.5.23, 8.7.38. Upgrade your dependency to 10.4.10, 9.5.23, 8.7.38 or later.
What is the CVSS score of CVE-2020-26228?
CVE-2020-26228 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2020-26228?
CVE-2020-26228 is classified under CWE-312: Cleartext Storage of Sensitive Information (The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere.).
How can I check Packagist dependencies for CVE-2020-26228?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-954j-f27r-cj52",
  "modified" : "2024-02-05T11:15:53Z",
  "published" : "2020-11-23T21:18:36Z",
  "aliases" : [ "CVE-2020-26228" ],
  "summary" : "Cleartext storage of session identifier",
  "details" : "User session identifiers were stored in cleartext - without processing of additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance SQL injection in any other component of the system.\n\n### Solution\nUpdate to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.\n\n### Credits\nThanks to TYPO3 security team member Helmut Hummel who reported this issue and to TYPO3 core & security team members Benni Mack & Oliver Hader as well as TYPO3 contributor Markus Klein who fixed the issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.5.23"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.0.0"
      }, {
        "fixed" : "10.4.10"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.7.0"
      }, {
        "fixed" : "8.7.38"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.0.0"
      }, {
        "fixed" : "10.4.10"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.5.23"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.7.0"
      }, {
        "fixed" : "8.7.38"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-954j-f27r-cj52"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-26228"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-26228.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-26228.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-core-sa-2020-011"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-312" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-11-23T21:10:32Z",
    "nvd_published_at" : "2020-11-23T21:15:12Z"
  }
}