CVE-2024-47823
Livewire Remote Code Execution on File Uploads
Impact
In livewire/livewire prior to `v2.12.7` and `v3.5.2`, the file extension of an uploaded file is guessed based on the MIME type. As a result, the actual file extension from the file name is not validated. An attacker can therefore bypass the validation by uploading a file with a valid MIME type (e.g., `image/png`) and a “.php” file extension. If the following criteria are met, the attacker can carry out an RCE attack: - Filename is composed of the original file name using `$file->getClientOriginalName()` - Files stored directly on your server in a public storage disk - Webserver is configured to execute “.php” files ### PoC In the following scenario, an attacker could upload a file called `shell.php` with an `image/png` MIME type and execute it on the remote server. ```php class SomeComponent extends Component { use WithFileUploads; #[Validate('image|extensions:png')] public $file; public function save() { $this->validate(); $this->file->storeAs( path: 'images', name: $this->file->getClientOriginalName(), options: ['disk' => 'public'], ); } } ```
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | livewire/livewire | >= 3.0.0-beta.1, < 3.5.2 | 3.5.2 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Laravel | Livewire | before 2.12.7 from 3.0.0 before 3.5.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/livewire/livewire/commit/70503b79f5db75a1eac9bf55826038a6ee5a16d5
- https://github.com/livewire/livewire/commit/cd168c6212ea13d13b82b3132485741f82d9fad9
- https://github.com/livewire/livewire/pull/8624
- https://github.com/livewire/livewire/security/advisories/GHSA-f3cx-396f-7jqp
- https://github.com/advisories/GHSA-f3cx-396f-7jqp
- https://nvd.nist.gov/vuln/detail/CVE-2024-47823