Senarai putih melarang proses daripada memanggil arahan sistem

Artikel ini membincangkan cara menyenarai putih proses terlarang daripada memanggil arahan sistem. Proses terlarang menyenarai putih membantu menghalang akses tanpa kebenaran kepada perintah sistem yang sensitif, mengurangkan pelanggaran keselamatan dan kebocoran data. Artikel tersebut menyediakan

Proses Larangan Senarai Putih daripada Arahan Sistem Memanggil

Bagaimanakah untuk menyenarai putihkan proses yang dilarang daripada memanggil arahan sistem?

Untuk memanggil proses yang dilarang untuk menyenarai putih untuk mencipta peraturan yang membenarkan proses tertentu melaksanakan arahan tertentu. Begini cara anda boleh melakukannya: auditdtool to create a rule that allows specific processes to execute certain commands. Here's how you can do it:

1. Create a rule file:Create a file called/etc/audit/rules.d/whitelist.ruleswith the following content:

-w /usr/bin/command -p x -c never

In this rule,/usr/bin/commandis the command that you want to whitelist,-p xspecifies that the rule applies to processes with executable permission, and-c neverspecifies that the rule should never be enforced. You can add multiple rules to the file, each on a separate line.

2. Load the rules:Load the rules file into theauditdsystem by running the following command:

sudo auditctl -R /etc/audit/rules.d/whitelist.rules

3. Restartauditd:To ensure that the rules are applied immediately, restartauditdby running:

sudo systemctl restart auditd

What are the benefits of whitelisting forbidden processes?

Whitelisting forbidden processes can help prevent unauthorized access to sensitive system commands. By restricting the ability of certain processes to execute specific commands, you can reduce the risk of security breaches and data leaks.

What are some examples of forbidden processes?

Forbidden processes are typically processes that are not essential for the operation of the system and that could be used to compromise the system if they were allowed to execute certain commands. Examples of forbidden processes include:

• Processes that have excessive file permissions
• Processes that are running with root privileges
• Processes that are known to be vulnerable to exploits

How can I audit forbidden processes?

You can audit forbidden processes by using theauditctltool. To do this, run the following command:

sudo auditctl -w /usr/bin/command -p x -c id

This command will create an audit rule that logs all attempts by processes with executable permission to execute the/usr/bin/command

1. Buat fail peraturan: Cipta fail bernama/etc/audit/rules.d/whitelist.rulesdengan kandungan berikut:

sudo cat /var/log/audit/audit.log | grep /usr/bin/command

2. Muat peraturan: Muatkan fail peraturan ke dalam sistemauditddengan menjalankan arahan berikut:

3. Mulakan semulaauditd: Untuk memastikan peraturan digunakan serta-merta, mulakan semulaauditddengan menjalankan:

• Proses yang mempunyai kebenaran fail yang berlebihan
• Proses yang berjalan dengan keistimewaan root
• Proses yang diketahui terdedah kepada eksploitasi

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