Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-21979

Severity CVSS v4.0:
Pending analysis
Type:
CWE-798 Use of Hard-coded Credentials
Publication date:
03/03/2021
Last modified:
03/05/2022

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS v3.1 Severity and Metrics:

Base Score: 7.30 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): Low
Availability (A): Low

Base Score 3.x
7.30
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
7.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 6.0.2-debian-9-r0 (including) 6.0.2-debian-9-r22 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 6.4.0-debian-9-r0 (including) 6.4.0-debian-9-r31 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 6.5.2-debian-9-r0 (including) 6.5.2-debian-9-r20 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 6.8.0-debian-9-r0 (including) 6.8.0-debian-9-r26 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 6.12.0-debian-9-r0 (including) 6.12.0-debian-10-r33 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 6.18.0-debian-10-r0 (including) 6.18.0-debian-10-r21 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 6.18.3-debian-10-r0 (including) 6.18.3-debian-10-r22 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 6.18.8-debian-10-r0 (including) 6.18.8-debian-10-r110 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 6.18.35-debian-10-r0 (including) 6.18.35-debian-10-r66 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 6.20.0-debian-10-r0 (including) 6.20.0-debian-10-r107 (excluding)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 7.0.0-debian-10-r0 (including) 7.0.0-debian-10-r7 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 7.3.0-debian-10-r0 (including) 7.3.0-debian-10-r20 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 7.6.0-debian-10-r0 (including) 7.6.0-debian-10-r38 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 7.12.0-debian-10-r0 (including) 7.12.0-debian-10-r72 (including)
cpe:2.3:a:bitnami:containers:*:*:*:*:*:laravel:*:* 7.25.0-debian-10-r0 (including) 7.25.0-debian-10-r16 (including)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools