GHSA-f6p5-76fp-m248 URL Rewrite vulnerability in multiple zendframework components
Attackers can spoof HTTP headers to bypass URL rewrite protections and request arbitrary internal content in Zend Framework components.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-f6p5-76fp-m248?
GHSA-f6p5-76fp-m248 is a server-side request forgery vulnerability in zendframework/zend-diactoros, published on 28 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
zend-diactoros (and, by extension, Expressive), zend-http (and, by extension, Zend Framework MVC projects), and zend-feed (specifically, its PubSubHubbub sub-component) each contain a potential URL rewrite exploit. In each case, marshaling a request URI includes logic that introspects HTTP request headers that are specific to a given server-side URL rewrite mechanism.
When these headers are present on systems not running the specific URL rewriting mechanism, the logic would still trigger, allowing a malicious client or proxy to emulate the headers to request arbitrary content.
Which versions are affected by GHSA-f6p5-76fp-m248?
6 open source packages ship an affected version, including zendframework/zend-diactoros, zendframework/zend-feed and zendframework/zend-http.
| Package | Affected | Fixed in |
|---|---|---|
zendframework/zend-diactoros Packagist | All versions | 1.8.4 |
zendframework/zend-diactoros Packagist | All versions | 1.8.4 |
zendframework/zend-feed Packagist | All versions | 2.10.3 |
zendframework/zend-feed Packagist | All versions | 2.10.3 |
zendframework/zend-http Packagist | All versions | 2.8.1 |
zendframework/zend-http Packagist | All versions | 2.8.1 |
How do I fix GHSA-f6p5-76fp-m248?
Upgrade zendframework/zend-diactoros to 1.8.4 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is GHSA-f6p5-76fp-m248 being exploited?
There is no known exploitation of GHSA-f6p5-76fp-m248 in the wild and no public exploit code.