Package Instance

Symfony vulnerable to command execution hijack on Windows with Process class
### Description

On Windows, when an executable file named `cmd.exe` is located in the current working directory it will be called by the `Process` class when preparing command arguments, leading to possible hijacking.

### Resolution

The `Process` class now uses the absolute path to `cmd.exe`.

The patch for this issue is available [here](https://github.com/symfony/symfony/commit/18ecd03eda3917fdf901a48e72518f911c64a1c9) for branch 5.4.

### Credits

We would like to thank Jordi Boggiano for reporting the issue and Nicolas Grekas for providing the fix.

Symfony allows internal address and port enumeration by NoPrivateNetworkHttpClient
### Description

When using the `NoPrivateNetworkHttpClient`, some internal information is still leaking during host resolution, which leads to possible IP/port enumeration.

### Resolution

The `NoPrivateNetworkHttpClient` now filters blocked IPs earlier to prevent such leaks.

The fisrt patch for this issue is available [here](https://github.com/symfony/symfony/commit/296d4b34a33b1a6ca5475c6040b3203622520f5b) for branch 5.4.

The second one is available [here](https://github.com/symfony/symfony/commit/b4bf5afdbdcb2fd03da513ee03beeabeb551e5fa) for branch 5.4 also.

### Credits

We would like to thank Linus Karlsson and Chris Smith for reporting the issue and Nicolas Grekas for providing the fix.

Symfony vulnerable to open redirect via browser-sanitized URLs
### Description

The `Request` class, does not parse URI with special characters the same way browsers do. As a result, an attacker can trick a validator relying on the `Request` class to redirect users to another domain.

### Resolution

The `Request::create` methods now assert the URI does not contain invalid characters as defined by https://url.spec.whatwg.org/

The patch for this issue is available [here](https://github.com/symfony/symfony/commit/5a9b08e5740af795854b1b639b7d45b9cbfe8819) for branch 5.4.

### Credits

We would like to thank Sam Mush - IPASSLab && ZGC Lab for reporting the issue and Nicolas Grekas for providing the fix.

Symfony allows changing the environment through a query
### Description

When the `register_argc_argv` php directive is set to `on` , and users call any URL with a special crafted query string, they are able to change the environment or debug mode used by the kernel when handling the request.

### Resolution

The `SymfonyRuntime` now ignores the `argv` values for non-cli SAPIs PHP runtimes

The patch for this issue is available [here](https://github.com/symfony/symfony/commit/a77b308c3f179ed7c8a8bc295f82b2d6ee3493fa) for branch 5.4.

### Credits

We would like to thank Vladimir Dusheyko for reporting the issue and Wouter de Jong for providing the fix.

Symfony's incorrect parsing of PATH_INFO can lead to limited authorization bypass
The `Request` class improperly interprets some `PATH_INFO` in a way that leads to representing some URLs with a path that doesn't start with a `/`. This can allow bypassing some access control rules that are built with this `/`-prefix assumption.

Symfony has an incorrect response from Validator when input ends with `\n`
### Description

It is possible to trick a `Validator` configured with a regular expression using the `$` metacharacters, with an input ending with `\n`.

### Resolution

Symfony now uses the `D` regex modifier to match the entire input.

The patch for this issue is available [here](https://github.com/symfony/symfony/commit/7d1032bbead9a4229b32fa6ebca32681c80cb76f) for branch 5.4.

### Credits

We would like to thank Offscript for reporting the issue and Alexandre Daubois for providing the fix.