Описание
The c_rehash script does not properly sanitise shell metacharacters to prevent command injection. This script is distributed by some operating systems in a manner where it is automatically executed. On such operating systems, an attacker could execute arbitrary commands with the privileges of the script. Use of the c_rehash script is considered obsolete and should be replaced by the OpenSSL rehash command line tool. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2). Fixed in OpenSSL 1.1.1o (Affected 1.1.1-1.1.1n). Fixed in OpenSSL 1.0.2ze (Affected 1.0.2-1.0.2zd).
A flaw was found in OpenSSL. The c_rehash script does not properly sanitize shell meta-characters to prevent command injection. Some operating systems distribute this script in a manner where it is automatically executed. This flaw allows an attacker to execute arbitrary commands with the privileges of the script on these operating systems.
Отчет
Red Hat Enterprise Linux uses a system-wide store of trusted certificates bundled in a single file and updated via update-ca-trust. The c_rehash script is not included in the default installation on any supported RHEL version, and is never executed automatically. For these reasons, this flaw has been rated as having a security impact of Moderate.
Red Hat Enterprise Linux 7 provides a vulnerable version of the c_rehash script in the openssl-perl package, available only through the unsupported Optional repository. As the Optional repository is not supported and Red Hat Enterprise Linux 7 is in Maintenance Support 2 Phase, this issue is not planned to be addressed there.
Red Hat Satellite ships an affected version of the c_rehash script embedded in puppet-agent package, however, the product is not vulnerable since it does not execute scripts with untrusted data. Moreover, the scriplet is owned by root user and is supposed to be accessed only by administrators.
Red Hat updates the OpenSSL compatibility packages (compat-openssl) to only address Important or Critical security issues with backported security patches.
Меры по смягчению последствий
As mentioned in the upstream security advisory, use of the c_rehash script is considered obsolete and should be replaced by the OpenSSL rehash command line tool.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2 | rhacm2/management-ingress-rhel8 | Not affected | ||
| Red Hat Enterprise Linux 6 | openssl | Out of support scope | ||
| Red Hat Enterprise Linux 6 | openssl098e | Out of support scope | ||
| Red Hat Enterprise Linux 7 | openssl | Out of support scope | ||
| Red Hat Enterprise Linux 7 | openssl098e | Out of support scope | ||
| Red Hat Enterprise Linux 7 | ovmf | Out of support scope | ||
| Red Hat Enterprise Linux 8 | compat-openssl10 | Out of support scope | ||
| Red Hat Enterprise Linux 8 | edk2 | Not affected | ||
| Red Hat Enterprise Linux 8 | shim | Not affected | ||
| Red Hat Enterprise Linux 9 | compat-openssl11 | Out of support scope |
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Дополнительная информация
Статус:
EPSS
6.7 Medium
CVSS3
Связанные уязвимости
The c_rehash script does not properly sanitise shell metacharacters to prevent command injection. This script is distributed by some operating systems in a manner where it is automatically executed. On such operating systems, an attacker could execute arbitrary commands with the privileges of the script. Use of the c_rehash script is considered obsolete and should be replaced by the OpenSSL rehash command line tool. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2). Fixed in OpenSSL 1.1.1o (Affected 1.1.1-1.1.1n). Fixed in OpenSSL 1.0.2ze (Affected 1.0.2-1.0.2zd).
The c_rehash script does not properly sanitise shell metacharacters to prevent command injection. This script is distributed by some operating systems in a manner where it is automatically executed. On such operating systems, an attacker could execute arbitrary commands with the privileges of the script. Use of the c_rehash script is considered obsolete and should be replaced by the OpenSSL rehash command line tool. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2). Fixed in OpenSSL 1.1.1o (Affected 1.1.1-1.1.1n). Fixed in OpenSSL 1.0.2ze (Affected 1.0.2-1.0.2zd).
The c_rehash script does not properly sanitise shell metacharacters to ...
EPSS
6.7 Medium
CVSS3