Cloudflare S2 Browser Isolation Trace

README.MD

This is just some quick data from the CF browser isolation beta. If you inspect the isolated webpage, there's a debug-sidebar you can add a show class to to make visible. From there, you can run a trace and get some info about the machines these VMs are on. These are the stubs of the metadata elements of two random traces I made.

P.S. no exploits found yet ;)

trace_stub_1.json

{
    "chrome-bitness": 64,
    "clock-domain": "LINUX_CLOCK_MONOTONIC",
    "command_line": "/usr/bin/chromium-browser-stable --disable-background-networking --enable-features=NetworkService,NetworkServiceInProcess --disable-breakpad --disable-client-side-phishing-detection --disable-component-extensions-with-background-pages --disable-default-apps --disable-dev-shm-usage --disable-extensions --disable-features=TranslateUI --disable-hang-monitor --disable-ipc-flooding-protection --disable-popup-blocking --disable-prompt-on-repost --disable-sync --force-color-profile=srgb --metrics-recording-only --no-first-run --enable-automation --password-store=basic --use-mock-keychain --user-data-dir=/dev/shm/chrome_output --disable-webgl --disable-webgl2 --disable-gpu --disable-gpu-watchdog --gpu-sandbox-failures-fatal --remote-debugging-address=127.0.0.1 --remote-debugging-port=9222 --window-position=0,0 --window-size=1,1 --disable-component-update --disable-gpu-shader-disk-cache --disable-extensions-except=/extensions/pdfjs --enable-logging=stderr --log-level=0 --disable-new-content-rendering-timeout --lite-video-ignore-network-conditions --lite-video-force-override-decision --enable-features=LiteVideo,ProactiveTabFreezeAndDiscard --disable-features=WebUSB,WebXR,CrashReporting,AutofillServerCommunication,NativeFileSystemAPI,FileHandlingAPI,TranslateUI,TranslateRankerQuery,TranslateRankerEnforcement,OriginTrials,WebRtcHideLocalIpsWithMdns,UrgentDiscardingFromPerformanceManager --autoplay-policy=user-gesture-required --disable-domain-reliability --disable-file-system --disable-dev-shm-usage --proxy-server=https://198.41.211.86:443 --force-fieldtrials=WebRTC-Video-DisableAutomaticResize/Enabled --flag-switches-begin --flag-switches-end about:blank",
    "cpu-brand": "",
    "cpu-family": 23,
    "cpu-model": 49,
    "cpu-stepping": 0,
    "field-trials": [],
    "gpu-devid": 0,
    "gpu-driver": "4.1.0.7",
    "gpu-gl-renderer": "Google SwiftShader",
    "gpu-gl-vendor": "Google Inc.",
    "gpu-psver": "3.00",
    "gpu-venid": 0,
    "gpu-vsver": "3.00",
    "highres-ticks": 1,
    "network-type": "Unknown",
    "num-cpus": 5,
    "os-arch": "x86_64",
    "os-name": "Linux",
    "os-version": "4.4.0",
    "physical-memory": 1800,
    "product-version": "Chrome/87.0.4280.143",
    "revision": "0",
    "trace-capture-datetime": "2021-1-23 1:8:41",
    "trace-config": "{\"enable_argument_filter\":false,\"enable_systrace\":false,\"included_categories\":[\"mojom\",\"toplevel.flow\",\"toplevel\",\"input\",\"devtools.timeline\",\"benchmark\",\"latencyInfo\",\"webrtc\",\"gpu.capture\",\"viz\",\"cc\",\"ui\",\"browser\",\"views\",\"compositor\",\"renderer\",\"renderer_host\",\"download\",\"base\",\"file\",\"navigation\",\"media\",\"netlog\",\"disabled-by-default-viz.quads\",\"disabled-by-default-viz.surface_id_flow\",\"disabled-by-default-viz.surface_lifetime\",\"disabled-by-default-cc.debug\",\"disabled-by-default-cc.debug.display_items\"],\"record_mode\":\"record-until-full\"}",
    "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.143 Safari/537.36",
    "v8-version": "8.7.220.31"
}

trace_stub_2.json

{
    "chrome-bitness": 64,
    "clock-domain": "LINUX_CLOCK_MONOTONIC",
    "command_line": "/usr/bin/chromium-browser-stable --disable-background-networking --enable-features=NetworkService,NetworkServiceInProcess --disable-breakpad --disable-client-side-phishing-detection --disable-component-extensions-with-background-pages --disable-default-apps --disable-dev-shm-usage --disable-extensions --disable-features=TranslateUI --disable-hang-monitor --disable-ipc-flooding-protection --disable-popup-blocking --disable-prompt-on-repost --disable-sync --force-color-profile=srgb --metrics-recording-only --no-first-run --enable-automation --password-store=basic --use-mock-keychain --user-data-dir=/dev/shm/chrome_output --disable-webgl --disable-webgl2 --disable-gpu --disable-gpu-watchdog --gpu-sandbox-failures-fatal --remote-debugging-address=127.0.0.1 --remote-debugging-port=9222 --window-position=0,0 --window-size=1,1 --disable-component-update --disable-gpu-shader-disk-cache --disable-extensions-except=/extensions/pdfjs --enable-logging=stderr --log-level=0 --disable-new-content-rendering-timeout --lite-video-ignore-network-conditions --lite-video-force-override-decision --enable-features=LiteVideo,ProactiveTabFreezeAndDiscard --disable-features=WebUSB,WebXR,CrashReporting,AutofillServerCommunication,NativeFileSystemAPI,FileHandlingAPI,TranslateUI,TranslateRankerQuery,TranslateRankerEnforcement,OriginTrials,WebRtcHideLocalIpsWithMdns,UrgentDiscardingFromPerformanceManager --autoplay-policy=user-gesture-required --disable-domain-reliability --disable-file-system --disable-dev-shm-usage --proxy-server=https://198.41.211.86:443 --force-fieldtrials=WebRTC-Video-DisableAutomaticResize/Enabled --flag-switches-begin --flag-switches-end about:blank",
    "cpu-brand": "",
    "cpu-family": 6,
    "cpu-model": 85,
    "cpu-stepping": 7,
    "field-trials": [],
    "gpu-devid": 0,
    "gpu-driver": "4.1.0.7",
    "gpu-gl-renderer": "Google SwiftShader",
    "gpu-gl-vendor": "Google Inc.",
    "gpu-psver": "3.00",
    "gpu-venid": 0,
    "gpu-vsver": "3.00",
    "highres-ticks": 1,
    "network-type": "Unknown",
    "num-cpus": 3,
    "os-arch": "x86_64",
    "os-name": "Linux",
    "os-version": "4.4.0",
    "physical-memory": 1800,
    "product-version": "Chrome/87.0.4280.143",
    "revision": "0",
    "trace-capture-datetime": "2021-1-23 1:15:48",
    "trace-config": "{\"enable_argument_filter\":false,\"enable_systrace\":false,\"included_categories\":[\"mojom\",\"toplevel.flow\",\"toplevel\",\"input\",\"devtools.timeline\",\"benchmark\",\"latencyInfo\",\"webrtc\",\"gpu.capture\",\"viz\",\"cc\",\"ui\",\"browser\",\"views\",\"compositor\",\"renderer\",\"renderer_host\",\"download\",\"base\",\"file\",\"navigation\",\"media\",\"netlog\",\"blink\",\"disabled-by-default-viz.quads\",\"disabled-by-default-viz.surface_id_flow\",\"disabled-by-default-viz.surface_lifetime\",\"disabled-by-default-cc.debug\"],\"record_mode\":\"record-until-full\"}",
    "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.143 Safari/537.36",
    "v8-version": "8.7.220.31"
}