| name | cis-apache-3.7 |
| description | Ensure the Core Dump Directory Is Secured |
| category | cis-apache |
| version | 3.6.0 |
| author | cyberstrike-official |
| tags | ["cis","apache","linux","privileges","permissions","ownership"] |
| cis_id | 3.7 |
| cis_benchmark | CIS Apache HTTP Server 2.2 Benchmark v3.6.0 |
| tech_stack | ["linux","apache"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
Ensure the Core Dump Directory Is Secured
Description
The CoreDumpDirectory directive can be used to specify a directory which Apache attempts to switch before dumping core. The default directory is the Apache ServerRoot directory. However, on Linux systems, core dumps are disabled by default. Most production environments should leave core dumps disabled. In the event that core dumps are needed, the directory needs to be writable by Apache, and it should meet the security requirements defined below in the audit and remediation sections.
Rationale
Core dumps are snapshots of memory and may contain sensitive information that should not be accessible by other accounts on the system.
Impact
None documented
Audit Procedure
Verify that either the CoreDumpDirectory directive is not enabled in any of the Apache configuration files, or the configured directory meets the following requirements:
- Not within the Apache web document root (
$APACHE_PREFIX/htdocs)
- Owned by root and has a group ownership of the Apache group (as defined via the Group directive)
- Has no read-write-search access permission for other users (e.g.,
o=rwx)
Remediation
Either remove the CoreDumpDirectory directive from the Apache configuration files, or make the configured directory meet the following requirements:
- Not within the Apache web document root (
$APACHE_PREFIX/htdocs)
- Owned by root and has a group ownership of the Apache group (as defined via the Group directive)
# chown root:apache /var/log/httpd
- Has no read-write-search access permission for other users
# chmod o-rwx /var/log/httpd
Default Value
The default core dump directory is the ServerRoot directory, which should not be writable.
References
- https://httpd.apache.org/docs/2.2/mod/mpm_common.html#coredumpdirectory
CIS Controls
Version 6
18.9 Sanitize Deployed Software Of Development Artifacts
For in-house developed applications, ensure that development artifacts (sample data and scripts; unused libraries, components, debug code; or tools) are not included in the deployed software, or accessible in the production environment.
Version 7