GHSA-2r6j-862c-m2v2

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Source
https://github.com/advisories/GHSA-2r6j-862c-m2v2
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-2r6j-862c-m2v2/GHSA-2r6j-862c-m2v2.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-2r6j-862c-m2v2
Aliases
Published
2021-03-23T01:53:52Z
Modified
2024-02-16T08:03:58.820618Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L/E:F/RL:O/RC:C CVSS Calculator
Summary
Unrestricted File Upload in Form Framework
Details

Problem

Due to the lack of ensuring file extensions belong to configured allowed mime-types, attackers can upload arbitrary data with arbitrary file extensions - however, default fileDenyPattern successfully blocked files like .htaccess or malicious.php.

TYPO3 Extbase extensions, which implement a file upload and do not implement a custom TypeConverter to transform uploaded files into FileReference domain model objects are affected by the vulnerability as well, since the UploadedFileReferenceConverter of ext:form handles the file upload and will accept files of any mime-type which are persisted to the default location.

In any way, uploaded files are placed in the default location /fileadmin/userupload/_, in most scenarios keeping the submitted filename - which allows attackers to directly reference files, or even correctly guess filenames used by other individuals, disclosing this information.

No authentication is required 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.

Type converter UploadedFileReferenceConverter is not registered globally anymore and just handles uploaded files within the scope of the Form Framework. Guessable storage location has changed from /fileadmin/userupload/form_\<random-hash\>/_ to /fileadmin/formuploads/<random-40-bit>. Allowed mime-types must match expected file extensions (e.g. _application/pdf must be .pdf, and cannot be .html).

Extbase extensions, who rely on the global availability of the UploadedFileReferenceConverter must now implement a custom TypeConverter to handle file uploads or explicitly implement the ext:form UploadedFileReferenceConverter with appropriate setting for accepted mime-types.

Credits

Thanks to Sebastian Michaelsen, Marc Lindemann, Oliver Eglseder, Markus Volkmer, Jakob Kunzmann, Johannes Regner, Richie Lee who reported this issue, and to TYPO3 core & security team members Oliver Hader & Benni Mack, as well as TYPO3 contributor Ralf Zimmermann who fixed the issue.

References

References

Affected packages

Packagist / typo3/cms-form

Package

Name
typo3/cms-form
Purl
pkg:composer/typo3/cms-form

Affected ranges

Type
ECOSYSTEM
Events
Introduced
8.0.0
Fixed
8.7.40

Affected versions

v8.*

v8.7.7
v8.7.8
v8.7.9
v8.7.10
v8.7.11
v8.7.12
v8.7.13
v8.7.14
v8.7.15
v8.7.16
v8.7.17
v8.7.18
v8.7.19
v8.7.20
v8.7.21
v8.7.22
v8.7.23
v8.7.24
v8.7.25
v8.7.26
v8.7.27
v8.7.28
v8.7.29
v8.7.30
v8.7.31
v8.7.32

Database specific

{
    "last_known_affected_version_range": "<= 8.7.39"
}

Packagist / typo3/cms-form

Package

Name
typo3/cms-form
Purl
pkg:composer/typo3/cms-form

Affected ranges

Type
ECOSYSTEM
Events
Introduced
9.0.0
Fixed
9.5.25

Affected versions

v9.*

v9.0.0
v9.1.0
v9.2.0
v9.2.1
v9.3.0
v9.3.1
v9.3.2
v9.3.3
v9.4.0
v9.5.0
v9.5.1
v9.5.2
v9.5.3
v9.5.4
v9.5.5
v9.5.6
v9.5.7
v9.5.8
v9.5.9
v9.5.10
v9.5.11
v9.5.12
v9.5.13
v9.5.14
v9.5.15
v9.5.16
v9.5.17
v9.5.18
v9.5.19
v9.5.20
v9.5.21
v9.5.22
v9.5.23
v9.5.24

Database specific

{
    "last_known_affected_version_range": "<= 9.5.24"
}

Packagist / typo3/cms-form

Package

Name
typo3/cms-form
Purl
pkg:composer/typo3/cms-form

Affected ranges

Type
ECOSYSTEM
Events
Introduced
10.0.0
Fixed
10.4.14

Affected versions

v10.*

v10.0.0
v10.1.0
v10.2.0
v10.2.1
v10.2.2
v10.3.0
v10.4.0
v10.4.1
v10.4.2
v10.4.3
v10.4.4
v10.4.5
v10.4.6
v10.4.7
v10.4.8
v10.4.9
v10.4.10
v10.4.11
v10.4.12
v10.4.13

Database specific

{
    "last_known_affected_version_range": "<= 10.4.13"
}

Packagist / typo3/cms-form

Package

Name
typo3/cms-form
Purl
pkg:composer/typo3/cms-form

Affected ranges

Type
ECOSYSTEM
Events
Introduced
11.0.0
Fixed
11.1.1

Affected versions

v11.*

v11.0.0
v11.1.0

Database specific

{
    "last_known_affected_version_range": "<= 11.1.0"
}

Packagist / typo3/cms-core

Package

Name
typo3/cms-core
Purl
pkg:composer/typo3/cms-core

Affected ranges

Type
ECOSYSTEM
Events
Introduced
10.0.0
Fixed
10.4.14

Affected versions

v10.*

v10.0.0
v10.1.0
v10.2.0
v10.2.1
v10.2.2
v10.3.0
v10.4.0
v10.4.1
v10.4.2
v10.4.3
v10.4.4
v10.4.5
v10.4.6
v10.4.7
v10.4.8
v10.4.9
v10.4.10
v10.4.11
v10.4.12
v10.4.13

Packagist / typo3/cms-core

Package

Name
typo3/cms-core
Purl
pkg:composer/typo3/cms-core

Affected ranges

Type
ECOSYSTEM
Events
Introduced
11.0.0
Fixed
11.1.1

Affected versions

v11.*

v11.0.0
v11.1.0

Packagist / typo3/cms-core

Package

Name
typo3/cms-core
Purl
pkg:composer/typo3/cms-core

Affected ranges

Type
ECOSYSTEM
Events
Introduced
9.0.0
Fixed
9.5.25

Affected versions

v9.*

v9.0.0
v9.1.0
v9.2.0
v9.2.1
v9.3.0
v9.3.1
v9.3.2
v9.3.3
v9.4.0
v9.5.0
v9.5.1
v9.5.2
v9.5.3
v9.5.4
v9.5.5
v9.5.6
v9.5.7
v9.5.8
v9.5.9
v9.5.10
v9.5.11
v9.5.12
v9.5.13
v9.5.14
v9.5.15
v9.5.16
v9.5.17
v9.5.18
v9.5.19
v9.5.20
v9.5.21
v9.5.22
v9.5.23
v9.5.24

Packagist / typo3/cms

Package

Name
typo3/cms
Purl
pkg:composer/typo3/cms

Affected ranges

Type
ECOSYSTEM
Events
Introduced
10.0.0
Fixed
10.4.14

Affected versions

v10.*

v10.0.0
v10.1.0
v10.2.0
v10.2.1
v10.2.2
v10.3.0
v10.4.0
v10.4.1
v10.4.2
v10.4.3
v10.4.4
v10.4.5
v10.4.6
v10.4.7
v10.4.8
v10.4.9
v10.4.10
v10.4.11
v10.4.12
v10.4.13

Packagist / typo3/cms

Package

Name
typo3/cms
Purl
pkg:composer/typo3/cms

Affected ranges

Type
ECOSYSTEM
Events
Introduced
11.0.0
Fixed
11.1.1

Affected versions

v11.*

v11.0.0
v11.1.0

Packagist / typo3/cms

Package

Name
typo3/cms
Purl
pkg:composer/typo3/cms

Affected ranges

Type
ECOSYSTEM
Events
Introduced
9.0.0
Fixed
9.5.25

Affected versions

v9.*

v9.0.0
v9.1.0
v9.2.0
v9.2.1
v9.3.0
v9.3.1
v9.3.2
v9.3.3
v9.4.0
v9.5.0
v9.5.1
v9.5.2
v9.5.3
v9.5.4
v9.5.5
v9.5.6
v9.5.7
v9.5.8
v9.5.9
v9.5.10
v9.5.11
v9.5.12
v9.5.13
v9.5.14
v9.5.15
v9.5.16
v9.5.17
v9.5.18
v9.5.19
v9.5.20
v9.5.21
v9.5.22
v9.5.23
v9.5.24