CVE-2021-43617
Published: 14 November 2021
Laravel Framework through 8.70.2 does not sufficiently block the upload of executable PHP content because Illuminate/Validation/Concerns/ValidatesAttributes.php lacks a check for .phar files, which are handled as application/x-httpd-php on systems based on Debian. NOTE: this CVE Record is for Laravel Framework, and is unrelated to any reports concerning incorrectly written user applications for image upload.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
php-laravel-framework Launchpad, Ubuntu, Debian |
hirsute |
Ignored
(end of life)
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Ignored
(end of standard support)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
- https://hosein-vita.medium.com/laravel-8-x-image-upload-bypass-zero-day-852bd806019b
- https://salsa.debian.org/php-team/php/-/blob/dc253886b5b2e9bc8d9e36db787abb083a667fd8/debian/php-cgi.conf#L5-6
- https://github.com/laravel/framework/blob/2049de73aa099a113a287587df4cc522c90961f5/src/Illuminate/Validation/Concerns/ValidatesAttributes.php#L1331-L1333
- https://salsa.debian.org/php-team/php/-/commit/dc253886b5b2e9bc8d9e36db787abb083a667fd8
- https://www.cve.org/CVERecord?id=CVE-2021-43617
- NVD
- Launchpad
- Debian