Ensure 'Allow download restrictions' is set to 'Enabled: Block malicious downloads'

高等級 1自動化chrome

說明

Google Chrome can block certain types of downloads, and won't let users bypass the security warnings, depending on the classification of Safe Browsing. - No special restrictions. Default. (0, Disabled) (Default) - Block malicious downloads and dangerous file types. (1) - Block malicious downloads, uncommon or unwanted downloads and dangerous file types. (2) - Block all downloads. (3) - Block malicious downloads. Rationale: Users shall be prevented from downloading malicious file types, and shall not be able to bypass security warnings. Audit reads the Group Policy registry value and prints 'compliant', 'unset' (policy not configured, reported as FAIL) or the non-compliant value. Registry value: HKLM\SOFTWARE\Policies\Google\Chrome:DownloadRestrictions (REG_DWORD); compliant when it is 4. Remediation writes 4 locally; in a domain set it through the ADMX so Group Policy does not revert it.

檢查方式

稽核方法: Windows 登錄檔

registry

$v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome' -Name 'DownloadRestrictions' -ErrorAction SilentlyContinue).'DownloadRestrictions'; if ($null -eq $v) { 'unset' } elseif (($null -ne $v -and @(4) -contains [int64]$v)) { 'compliant' } else { "non-compliant: $v" }

預期輸出: compliant

修補方式

修補方法: Shell 指令

shell

$p = 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome'; if (-not (Test-Path -Path $p)) { New-Item -Path $p -Force | Out-Null }; New-ItemProperty -Path $p -Name 'DownloadRestrictions' -Value 4 -PropertyType DWord -Force | Out-Null

屬性

作業系統: 不限
標籤: chromebrowsercis-l1
參考資料: CIS Google Chrome Benchmark v3.0.0 - 2.11 Ensure 'Allow download restrictions' is set to 'Enabled: Block malicious downloads'

檢查此主機

請在您有權稽核的機器上執行此指令。掃描為唯讀操作。

shell

tmaegis scan --target chrome