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macOS post-exploitation for credential harvesting, DTrace monitoring, TCC bypass, and stealth operations via native tools
Windows userland post-exploitation for credential harvesting, monitoring, AMSI/ETW bypass, and stealth operations
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Showing SKILL.md
| name | cis-ubuntu1204-v110-13-20 |
| description | Check for Presence of User .forward Files |
| category | cis-os-hardening |
| version | 1.1.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu",12.04,"linux","user-management","forward","email","mail-forwarding"] |
| cis_id | 13.20 |
| cis_benchmark | CIS Ubuntu 12.04 LTS Server Benchmark v1.1.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
The .forward file specifies an email address to forward the user's mail to.
Use of the .forward file poses a security risk in that sensitive data may be inadvertently transferred outside the organization. The .forward file also poses a risk as it can be used to execute commands that may perform unintended actions.
This script checks for the presence of .forward files that may be in violation of the site security policy.
#!/bin/bash
for dir in `/bin/cat /etc/passwd |\
/usr/bin/awk -F: '{ print $6 }'`; do
if [ ! -h "$dir/.forward" -a -f "$dir/.forward" ]; then
echo ".forward file $dir/.forward exists"
fi
done
No output should be returned. Any output indicates the presence of .forward files in user home directories.
Making global modifications to users' files without alerting the user community can result in unexpected outages and unhappy users. Therefore, it is recommended that a monitoring policy be established to report user .forward files and determine the action to be taken in accordance with site policy.
No .forward files exist by default on Ubuntu 12.04.
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