Vulnerability in Bitnami Containers

CVE-2021-21979

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.

EPSS: 0.006 (47.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

  • Bitnami Containers — versions 6.19.0-debian-10-r0, 7.29.0-debian-10-r0, 7.30.0-debian-10-r0
  • N/a Bitnami Containers — versions 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-21979?
CVE-2021-21979 is a high-severity vulnerability in Bitnami Containers, classified under Use of Hard-coded Credentials. CVSS score: 7.3/10. Published 2021-03-03.
How severe is CVE-2021-21979?
High severity. CVSS v3 base score is 7.3 out of 10.
Is CVE-2021-21979 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.