CVE-2017-16894

Description

In Laravel framework through 5.5.21, remote attackers can obtain sensitive information (such as externally usable passwords) via a direct request for the /.env URI. NOTE: this CVE is only about Laravel framework's writeNewEnvironmentFileWith function in src/Illuminate/Foundation/Console/KeyGenerateCommand.php, which uses file_put_contents without restricting the .env permissions. The .env filename is not used exclusively by Laravel framework.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 86.96% Top 5%
Third-Party Advisory whiteboyz.xyz
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://twitter.com/finnwea/status/967709791442341888
http://whiteboyz.xyz/laravel-env-file-vuln.html third party advisory url repurposed
http://packetstormsecurity.com/files/153641/PHP-Laravel-Framework-Token-Unserialize-Remote-Command-Execution.html

Frequently Asked Questions

What is the severity of CVE-2017-16894?
CVE-2017-16894 has been scored as a high severity vulnerability.
How to fix CVE-2017-16894?
To fix CVE-2017-16894, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-16894 being actively exploited in the wild?
It is possible that CVE-2017-16894 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~87% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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