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

高级别 1自动化chrome

说明

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.

检查方式

审计方法: Windows 注册表

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" }

预期输出: compliant

修复方式

修复方法: Shell 命令

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

属性

操作系统: 任意
标签: chromebrowsercis-l1
参考: CIS Google Chrome Benchmark v3.0.0 - 2.11 Ensure 'Allow download restrictions' is set to 'Enabled: Block malicious downloads'

检查本机

请在您有权审计的机器上运行此命令。扫描为只读操作。

shell

tmaegis scan --target chrome