Куда я попал?
SECURITM это SGRC система, ? автоматизирующая процессы в службах информационной безопасности. SECURITM помогает построить и управлять ИСПДн, КИИ, ГИС, СМИБ/СУИБ, банковскими системами защиты.
А еще SECURITM это место для обмена опытом и наработками для служб безопасности.

Unsecured Credentials:  Bash History

Adversaries may search the bash command history on compromised systems for insecurely stored credentials. Bash keeps track of the commands users type on the command-line with the "history" utility. Once a user logs out, the history is flushed to the user’s .bash_history file. For each user, this file resides at the same location: ~/.bash_history. Typically, this file keeps track of the user’s last 500 commands. Users often type usernames and passwords on the command-line as parameters to programs, which then get saved to this file when they log out. Adversaries can abuse this by looking through the file for potential credentials. (Citation: External to DA, the OS X Way)

ID: T1552.003
Sub-technique of:  T1552
Tactic(s): Credential Access
Platforms: Linux, macOS
Permissions Required: User
Data Sources: Command: Command Execution, File: File Access
Version: 1.1
Created: 04 Feb 2020
Last Modified: 08 Mar 2022

Procedure Examples

Name Description
Kinsing

Kinsing has searched bash_history for credentials.(Citation: Aqua Kinsing April 2020)

Mitigations

Mitigation Description
Bash History Mitigation

There are multiple methods of preventing a user's command history from being flushed to their .bash_history file, including use of the following commands: set +o history and set -o history to start logging again; unset HISTFILE being added to a user's .bash_rc file; and ln -s /dev/null ~/.bash_history to write commands to /dev/nullinstead.

Operating System Configuration

Make configuration changes related to the operating system or a common feature of the operating system that result in system hardening against techniques.

Detection

Monitoring when the user's .bash_history is read can help alert to suspicious activity. While users do typically rely on their history of commands, they often access this history through other utilities like "history" instead of commands like cat ~/.bash_history.

Каталоги

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