CVE-2021-21979

Public Exploit

Description

In Bitnami Containers, all Laravel container versions prior to: 6.20.0-debian-10-r107 for Laravel 6, 7.30.1-debian-10-r108 for Laravel 7 and 8.5.11-debian-10-r0 for Laravel 8, the file /tmp/app/.env is generated at the time that the docker image bitnami/laravel was built, and the value of APP_KEY is fixed under certain conditions. This value is crucial for the security of the application and must be randomly generated per Laravel installation. If your application's encryption key is in the hands of a malicious party, that party could craft cookie values using the encryption key and exploit vulnerabilities inherent to PHP object serialization / unserialization, such as calling arbitrary class methods within your application.

Category

7.3
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.17%
Third-Party Advisory github.com
Affected: n/a Bitnami Containers
Published at:
Updated at:

References

Link Tags
https://github.com/bitnami/bitnami-docker-laravel/issues/139 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-21979?
CVE-2021-21979 has been scored as a high severity vulnerability.
How to fix CVE-2021-21979?
To fix CVE-2021-21979, 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-2021-21979 being actively exploited in the wild?
It is possible that CVE-2021-21979 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21979?
CVE-2021-21979 affects n/a Bitnami Containers.
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