CVE-2021-21979 Hardcoded credentials in Bitnami Containers
Attackers can exploit a hardcoded Laravel APP_KEY in Bitnami containers to craft malicious cookies, potentially leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21979?
CVE-2021-21979 is a high-severity vulnerability in Bitnami Containers, published on 3 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-798
Which versions are affected by CVE-2021-21979?
It affects 1 product.
Products include Bitnami Containers.
How do I fix CVE-2021-21979?
No fix has been published for CVE-2021-21979 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-21979 being exploited?
There is no known exploitation of CVE-2021-21979 in the wild and no public exploit code.
Sources
Also known as GHSA-fqf3-g95f-m2v9.