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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTN2Zzctanc5bS1wYzNm
Broken Access Control in Form Framework
Problem
Due to improper input validation, attackers can by-pass restrictions of predefined options and submit arbitrary data in the Form Designer backend module of the Form Framework.
In the default configuration of the Form Framework this allows attackers to explicitly allow arbitrary mime-types for file uploads - however, default fileDenyPattern successfully blocked files like .htaccess or malicious.php. Besides that, attackers can persist those files in any writable directory of the corresponding TYPO3 installation.
A valid backend user account with access to the form module is needed to exploit this vulnerability.
Solution
Update to TYPO3 versions 8.7.40, 9.5.25, 10.4.14, 11.1.1 that fix the problem described.
Credits
Thanks to Richie Lee who reported this issue and to TYPO3 contributor Ralf Zimmermann who fixed the issue.
References Permalink: https://github.com/advisories/GHSA-3vg7-jw9m-pc3f
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTN2Zzctanc5bS1wYzNm
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: almost 4 years ago
Updated: 12 months ago
CVSS Score: 7.9
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H/E:H/RL:O/RC:C
EPSS Percentage: 0.0015
EPSS Percentile: 0.51632
Identifiers: GHSA-3vg7-jw9m-pc3f, CVE-2021-21357
References:
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-3vg7-jw9m-pc3f
- https://packagist.org/packages/typo3/cms-form
- https://nvd.nist.gov/vuln/detail/CVE-2021-21357
- https://typo3.org/security/advisory/typo3-core-sa-2021-003
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-21357.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-21357.yaml
- https://github.com/advisories/GHSA-3vg7-jw9m-pc3f
Blast Radius: 28.3
Affected Packages
packagist:typo3/cms
Dependent packages: 380Dependent repositories: 407
Downloads: 1,862,934 total
Affected Version Ranges: >= 9.0.0, < 9.5.25, >= 11.0.0, < 11.1.1, >= 10.0.0, < 10.4.14
Fixed in: 9.5.25, 11.1.1, 10.4.14
All affected versions: 9.0.0, 9.1.0, 9.2.0, 9.2.1, 9.3.0, 9.3.1, 9.3.2, 9.3.3, 9.4.0, 9.5.0, 9.5.1, 9.5.2, 9.5.3, 9.5.4, 9.5.5, 9.5.6, 9.5.7, 9.5.8, 9.5.9, 9.5.10, 9.5.11, 9.5.12, 9.5.13, 9.5.14, 9.5.15, 9.5.16, 9.5.17, 9.5.18, 9.5.19, 9.5.20, 9.5.21, 9.5.22, 9.5.23, 9.5.24, 10.0.0, 10.1.0, 10.2.0, 10.2.1, 10.2.2, 10.3.0, 10.4.0, 10.4.1, 10.4.2, 10.4.3, 10.4.4, 10.4.5, 10.4.6, 10.4.7, 10.4.8, 10.4.9, 10.4.10, 10.4.11, 10.4.12, 10.4.13, 11.0.0, 11.1.0
All unaffected versions: 6.2.0, 6.2.1, 6.2.2, 6.2.3, 6.2.4, 6.2.5, 6.2.6, 6.2.7, 6.2.8, 6.2.9, 6.2.10, 6.2.11, 6.2.12, 6.2.13, 6.2.14, 6.2.15, 6.2.16, 6.2.17, 6.2.18, 6.2.19, 6.2.20, 6.2.21, 6.2.22, 6.2.23, 6.2.24, 6.2.25, 6.2.26, 6.2.27, 6.2.28, 6.2.29, 6.2.30, 6.2.31, 7.0.0, 7.0.1, 7.0.2, 7.1.0, 7.2.0, 7.3.0, 7.3.1, 7.4.0, 7.5.0, 7.6.0, 7.6.1, 7.6.2, 7.6.3, 7.6.4, 7.6.5, 7.6.6, 7.6.7, 7.6.8, 7.6.9, 7.6.10, 7.6.11, 7.6.12, 7.6.13, 7.6.14, 7.6.15, 7.6.16, 7.6.17, 7.6.18, 7.6.19, 7.6.20, 7.6.21, 7.6.22, 7.6.23, 7.6.24, 7.6.25, 7.6.26, 7.6.27, 7.6.28, 7.6.29, 7.6.30, 7.6.31, 7.6.32, 8.0.0, 8.0.1, 8.1.0, 8.1.1, 8.1.2, 8.2.0, 8.2.1, 8.3.0, 8.3.1, 8.4.0, 8.4.1, 8.5.0, 8.5.1, 8.6.0, 8.6.1, 8.7.0, 8.7.1, 8.7.2, 8.7.3, 8.7.4, 8.7.5, 8.7.6, 8.7.7, 8.7.8, 8.7.9, 8.7.10, 8.7.11, 8.7.12, 8.7.13, 8.7.14, 8.7.15, 8.7.16, 8.7.17, 8.7.18, 8.7.19, 8.7.20, 8.7.21, 8.7.22, 8.7.23, 8.7.24, 8.7.25, 8.7.26, 8.7.27, 8.7.28, 8.7.29, 8.7.30, 8.7.31, 8.7.32, 9.5.25, 9.5.26, 9.5.27, 9.5.28, 9.5.29, 9.5.30, 9.5.31, 10.4.14, 10.4.15, 10.4.16, 10.4.17, 10.4.18, 10.4.19, 10.4.20, 10.4.21, 10.4.22, 10.4.23, 10.4.24, 10.4.25, 10.4.26, 10.4.27, 10.4.28, 10.4.29, 10.4.30, 10.4.31, 10.4.32, 10.4.33, 10.4.34, 10.4.35, 10.4.36, 10.4.37, 11.1.1, 11.2.0, 11.3.0, 11.3.1, 11.3.2, 11.3.3, 11.4.0, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.5.11, 11.5.12, 11.5.13, 11.5.14, 11.5.15, 11.5.16, 11.5.17, 11.5.18, 11.5.19, 11.5.20, 11.5.21, 11.5.22, 11.5.23, 11.5.24, 11.5.25, 11.5.26, 11.5.27, 11.5.28, 11.5.29, 11.5.30, 11.5.31, 11.5.32, 11.5.33, 11.5.34, 11.5.35, 11.5.36, 11.5.37, 11.5.38, 11.5.39, 11.5.40, 11.5.41, 12.0.0, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.2.0, 12.3.0, 12.4.0, 12.4.1, 12.4.2, 12.4.3, 12.4.4, 12.4.5, 12.4.6, 12.4.7, 12.4.8, 12.4.9, 12.4.10, 12.4.11, 12.4.12, 12.4.13, 12.4.14, 12.4.15, 12.4.16, 12.4.17, 12.4.18, 12.4.19, 12.4.20, 12.4.21, 12.4.22, 12.4.23, 12.4.24, 13.0.0, 13.0.1, 13.1.0, 13.1.1, 13.2.0, 13.2.1, 13.3.0, 13.3.1, 13.4.0, 13.4.1, 13.4.2
packagist:typo3/cms-core
Dependent packages: 3,067Dependent repositories: 3,856
Downloads: 8,840,840 total
Affected Version Ranges: >= 9.0.0, < 9.5.25, >= 11.0.0, < 11.1.1, >= 10.0.0, < 10.4.14
Fixed in: 9.5.25, 11.1.1, 10.4.14
All affected versions: 9.0.0, 9.1.0, 9.2.0, 9.2.1, 9.3.0, 9.3.1, 9.3.2, 9.3.3, 9.4.0, 9.5.0, 9.5.1, 9.5.2, 9.5.3, 9.5.4, 9.5.5, 9.5.6, 9.5.7, 9.5.8, 9.5.9, 9.5.10, 9.5.11, 9.5.12, 9.5.13, 9.5.14, 9.5.15, 9.5.16, 9.5.17, 9.5.18, 9.5.19, 9.5.20, 9.5.21, 9.5.22, 9.5.23, 9.5.24, 10.0.0, 10.1.0, 10.2.0, 10.2.1, 10.2.2, 10.3.0, 10.4.0, 10.4.1, 10.4.2, 10.4.3, 10.4.4, 10.4.5, 10.4.6, 10.4.7, 10.4.8, 10.4.9, 10.4.10, 10.4.11, 10.4.12, 10.4.13, 11.0.0, 11.1.0
All unaffected versions: 8.7.7, 8.7.8, 8.7.9, 8.7.10, 8.7.11, 8.7.12, 8.7.13, 8.7.14, 8.7.15, 8.7.16, 8.7.17, 8.7.18, 8.7.19, 8.7.20, 8.7.21, 8.7.22, 8.7.23, 8.7.24, 8.7.25, 8.7.26, 8.7.27, 8.7.28, 8.7.29, 8.7.30, 8.7.31, 8.7.32, 9.5.25, 9.5.26, 9.5.27, 9.5.28, 9.5.29, 9.5.30, 9.5.31, 10.4.14, 10.4.15, 10.4.16, 10.4.17, 10.4.18, 10.4.19, 10.4.20, 10.4.21, 10.4.22, 10.4.23, 10.4.24, 10.4.25, 10.4.26, 10.4.27, 10.4.28, 10.4.29, 10.4.30, 10.4.31, 10.4.32, 10.4.33, 10.4.34, 10.4.35, 10.4.36, 10.4.37, 11.1.1, 11.2.0, 11.3.0, 11.3.1, 11.3.2, 11.3.3, 11.4.0, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.5.11, 11.5.12, 11.5.13, 11.5.14, 11.5.15, 11.5.16, 11.5.17, 11.5.18, 11.5.19, 11.5.20, 11.5.21, 11.5.22, 11.5.23, 11.5.24, 11.5.25, 11.5.26, 11.5.27, 11.5.28, 11.5.29, 11.5.30, 11.5.31, 11.5.32, 11.5.33, 11.5.34, 11.5.35, 11.5.36, 11.5.37, 11.5.38, 11.5.39, 11.5.40, 11.5.41, 12.0.0, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.2.0, 12.3.0, 12.4.0, 12.4.1, 12.4.2, 12.4.3, 12.4.4, 12.4.5, 12.4.6, 12.4.7, 12.4.8, 12.4.9, 12.4.10, 12.4.11, 12.4.12, 12.4.13, 12.4.14, 12.4.15, 12.4.16, 12.4.17, 12.4.18, 12.4.19, 12.4.20, 12.4.21, 12.4.22, 12.4.23, 12.4.24, 12.4.25, 12.4.26, 13.0.0, 13.0.1, 13.1.0, 13.1.1, 13.2.0, 13.2.1, 13.3.0, 13.3.1, 13.4.0, 13.4.1, 13.4.2, 13.4.3, 13.4.4
packagist:typo3/cms-form
Dependent packages: 130Dependent repositories: 271
Downloads: 5,361,534 total
Affected Version Ranges: >= 11.0.0, <= 11.1.0, >= 10.0.0, <= 10.4.13, >= 9.0.0, <= 9.5.24, >= 8.0.0, <= 8.7.39
Fixed in: 11.1.1, 10.4.14, 9.5.25, 8.7.40
All affected versions: 8.7.7, 8.7.8, 8.7.9, 8.7.10, 8.7.11, 8.7.12, 8.7.13, 8.7.14, 8.7.15, 8.7.16, 8.7.17, 8.7.18, 8.7.19, 8.7.20, 8.7.21, 8.7.22, 8.7.23, 8.7.24, 8.7.25, 8.7.26, 8.7.27, 8.7.28, 8.7.29, 8.7.30, 8.7.31, 8.7.32, 9.0.0, 9.1.0, 9.2.0, 9.2.1, 9.3.0, 9.3.1, 9.3.2, 9.3.3, 9.4.0, 9.5.0, 9.5.1, 9.5.2, 9.5.3, 9.5.4, 9.5.5, 9.5.6, 9.5.7, 9.5.8, 9.5.9, 9.5.10, 9.5.11, 9.5.12, 9.5.13, 9.5.14, 9.5.15, 9.5.16, 9.5.17, 9.5.18, 9.5.19, 9.5.20, 9.5.21, 9.5.22, 9.5.23, 9.5.24, 10.0.0, 10.1.0, 10.2.0, 10.2.1, 10.2.2, 10.3.0, 10.4.0, 10.4.1, 10.4.2, 10.4.3, 10.4.4, 10.4.5, 10.4.6, 10.4.7, 10.4.8, 10.4.9, 10.4.10, 10.4.11, 10.4.12, 10.4.13, 11.0.0, 11.1.0
All unaffected versions: 9.5.25, 9.5.26, 9.5.27, 9.5.28, 9.5.29, 9.5.30, 9.5.31, 10.4.14, 10.4.15, 10.4.16, 10.4.17, 10.4.18, 10.4.19, 10.4.20, 10.4.21, 10.4.22, 10.4.23, 10.4.24, 10.4.25, 10.4.26, 10.4.27, 10.4.28, 10.4.29, 10.4.30, 10.4.31, 10.4.32, 10.4.33, 10.4.34, 10.4.36, 10.4.37, 11.1.1, 11.2.0, 11.3.0, 11.3.1, 11.3.2, 11.3.3, 11.4.0, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.5.11, 11.5.12, 11.5.13, 11.5.14, 11.5.15, 11.5.16, 11.5.17, 11.5.18, 11.5.19, 11.5.20, 11.5.21, 11.5.22, 11.5.23, 11.5.24, 11.5.25, 11.5.26, 11.5.27, 11.5.28, 11.5.29, 11.5.30, 11.5.31, 11.5.32, 11.5.33, 11.5.34, 11.5.35, 11.5.36, 11.5.37, 11.5.38, 11.5.39, 11.5.40, 11.5.41, 12.0.0, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.2.0, 12.3.0, 12.4.0, 12.4.1, 12.4.2, 12.4.3, 12.4.4, 12.4.5, 12.4.6, 12.4.7, 12.4.8, 12.4.9, 12.4.10, 12.4.11, 12.4.12, 12.4.13, 12.4.14, 12.4.15, 12.4.16, 12.4.17, 12.4.18, 12.4.19, 12.4.20, 12.4.21, 12.4.22, 12.4.23, 12.4.24, 12.4.25, 13.0.0, 13.0.1, 13.1.0, 13.1.1, 13.2.1, 13.3.0, 13.3.1, 13.4.0, 13.4.1, 13.4.2, 13.4.3