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Find sigma rule :x:

Attack: Password Policy Discovery

Adversaries may attempt to access detailed information about the password policy used within an enterprise network or cloud environment. Password policies are a way to enforce complex passwords that are difficult to guess or crack through Brute Force. This information may help the adversary to create a list of common passwords and launch dictionary and/or brute force attacks which adheres to the policy (e.g. if the minimum password length should be 8, then not trying passwords such as ‘pass123’; not checking for more than 3-4 passwords per account if the lockout is set to 6 as to not lock out accounts).

Password policies can be set and discovered on Windows, Linux, and macOS systems via various command shell utilities such as net accounts (/domain), Get-ADDefaultDomainPasswordPolicy, chage -l </code>, cat /etc/pam.d/common-password, and pwpolicy getaccountpolicies (Citation: Superuser Linux Password Policies) (Citation: Jamf User Password Policies). Adversaries may also leverage a [Network Device CLI](https://attack.mitre.org/techniques/T1059/008) on network devices to discover password policy information (e.g. show aaa, show aaa common-criteria policy all).(Citation: US-CERT-TA18-106A)

Password policies can be discovered in cloud environments using available APIs such as GetAccountPasswordPolicy in AWS (Citation: AWS GetPasswordPolicy).

MITRE

Tactic

technique

Test : Examine password complexity policy - CentOS/RHEL 7.x

OS

Description:

Lists the password complexity policy to console on CentOS/RHEL 7.x Linux.

Executor

bash

Sigma Rule

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