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Contao orgCONTAO:UNRESTRICTED-FILE-UPLOADS

HistoryDec 17, 2019 - 12:00 a.m.

Unrestricted file uploads

2019-12-1700:00:00

Contao org

contao.org

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

41.4%

JSON

Date: 2019-12-17 CVE ID: CVE-2019-19745

Description

A back end user with access to the form generator can upload arbitrary files and execute them on the server.

Affected versions

Contao 4.0
Contao 4.1
Contao 4.2
Contao 4.3
Contao 4.4 up to 4.4.45
Contao 4.5
Contao 4.6
Contao 4.7
Contao 4.8 up to 4.8.5

Suggested solution

Update to Contao 4.4.46 or 4.8.6.

Workaround

Configure your web server so it does not execute PHP files and other scripts in the Contao file upload directory.

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

41.4%

JSON

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