Xfinity Home & xFi

  • Points – $3,500 per vulnerability
  • Up to $10,000 maximum reward
  • Partial safe harbor
  • Managed by Bugcrowd

Program stats

55 vulnerabilities rewarded

Validation within 1 day
75% of submissions are accepted or rejected within 1 day

$842.85 average payout (last 3 months)

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Recently joined this program

Program Overview

At Comcast, we’re committed to working alongside the security research community, and know we’re at our best when we continually enhance this process. That's why we’ve launched Xfinity Home’s bug bounty and expanded the scope to include Xfinity xFi. With your help, we continue with our mission to make Xfinity products more secure.

Xfinity Home is a complete home security system, with 24/7 professional monitoring, and battery/cellular backup. Our customers enjoy peace of mind through live video monitoring with our Xfinity cameras, and motion activated recording that detects people, vehicles, and pets. The door/window sensors allow you to monitor your home and receive real-time alerts when doors are open or closed.

Xfinity xFi gives you the ultimate control of your in-home WiFi from anywhere, on any device. With xFi and an xFi enabled gateway, you can view connected devices, create profiles, pause WiFi to any device, and more. xFi Advanced Security helps keep you safe on sites people visit, prevent remote access from unknown sources, and report/block suspicious device activity with real-time app notifications.

Please note, this program is specifically scoped for Xfinity Home and Xfinity xFi. If you believe you've found a security issue related to any other product or service(or are unsure) please report through our vulnerability disclosure program.


Ratings/Rewards

For the initial prioritization/rating of findings, this program will use the Bugcrowd Vulnerability Rating Taxonomy. However, in some cases, a vulnerability priority will be modified due to its attack complexity, requirements, likelihood, or impact of successful exploitation.

All submissions are reviewed to determine an accurate priority and any change will result in a detailed explanation provided to the researcher with the opportunity for a follow up.

Reward Guidelines

Rewards are determined through an internal impact assessment, researcher interaction and the overall quality, content, and accuracy of the report.

High impact findings

Comcast may reward eligible P1 submissions up to $10,000 for findings related to:

Xfinity Home

  1. Remote unauthorized access (via publicly accessible internet, not on the same LAN/wireless network) of:

    • Cloud storage videos
    • Live camera feeds
  2. Bypassing Armed Systems

  3. Abuse/Theft of Service

Xfinity xFi

  1. Abuse/Theft of Service

  2. Unauthorized access to WiFi credentials

VRT Amendments

VRT Name Adjusted Priority
High Impact Subdomain Takeover P2 -> P3
Basic Subdomain Takeover P3 -> P4

Reward range

Last updated

Technical severity Reward range
p1 Critical $1,500 - $3,500
p2 Severe $750 - $1,200
p3 Moderate $300 - $600
p4 Low Up to: $250
P5 submissions do not receive any rewards for this program.

Targets

In scope

Target name Type Tags
Xfinity Home Starter Kit (see below) Hardware Testing
  • IoT
  • API Testing
  • Radiofrequency Testing
  • WiFi
  • Hardware Testing
Home.xfinity.com (see below) Website Testing
  • Website Testing
Xfinity Home iOS mobile app iOS
  • Mobile Application Testing
  • iOS
  • Objective-C
  • Swift
  • SwiftUI
Xfinity Home Android mobile app Android
  • Mobile Application Testing
  • Android
  • Java
  • Kotlin
Xfinity Home cameras IoT
  • IoT
  • API Testing
  • Radiofrequency Testing
  • WiFi
  • Hardware Testing
login.xfinity.com Website Testing
  • Website Testing
  • jQuery
xFi iOS mobile app iOS
  • IoT
  • API Testing
  • Radiofrequency Testing
  • WiFi
  • Hardware Testing
xFi Android mobile app Android
  • Website Testing
Internet.xfinity.com Website Testing
  • IoT
  • API Testing
  • Radiofrequency Testing
  • WiFi
  • Hardware Testing
speedtest.xfinity.com Website Testing
  • JSON
  • Amazon S3
  • Amazon Cloudfront
  • jQuery
  • Angular
oauth.xfinity.com Website Testing
  • Website Testing
xhomeapi-*.codebig2.net API Testing
xhomeapi-*.cloud.comcast.net API Testing
*-cvr-aws-*.sys.comcast.net Website Testing
*signalservice.comcast.net Website Testing
siorc.xfinity.com Website Testing
smartinet.xfinity.com Website Testing
orc-xfi.com Website Testing

Out of scope

Target name Type
3rd Party Devices (known as Works with Xfinity) IoT

Exclusions

The following assets are not yet eligible for bounty and should be reported through our vulnerability disclosure program.

Target Name Type
xFi Gateways (e.g., XB3, XB6, XB7) Hardware
xFi Pods Hardware

Target Info

All submissions must have demonstrable impact on the Xfinity Home or xFi. To be able to test comprehensively, researchers must be a current Xfinity subscriber. Without an active Xfinity account, the available attack surface is highly limited - however, we encourage researchers to test with what is available to them.

Endpoint Details

All Comcast/Xfinity endpoints called by Xfinity Home/xFi applications are in-scope.

Xfinity Home Description
xhomeapi-*.codebig2.net API Gateway
xhomeapi-*.cloud.comcast.net API for fetching device information
*-cvr-aws-*.sys.comcast.net Endpoints for CVR data
*signalservice.comcast.net Endpoint for live video
oauth.xfinity.com User Authentication
api.sc.xfinity.com API for retrieving user information
Xfinity xFi Description
internet.xfinity.com Website for xFi functionality
siorc.xfinity.com Endpoint for mobile app orchestration
speedtest.xfinity.com Used to determine Internet speed connection
orc-xfi.com xFi orchestration layer
smartinet.xfinity.com xFi orchestration layer
Hardware/IoT
Touchscreen Controller
Windows/Door Sensors
Wireless keypad
Wireless motion sensors
Xfinity Home Cameras

Out of Scope Details

Any domain/property of Comcast not listed in the targets section is out of scope for this bounty program. This includes any/all subdomains not listed above. If you believe you've identified a Comcast vulnerability on a system outside the scope of this program, please report it through our vulnerability disclosure program.

  • Email spoofing issues (e.g., SPF, DKIM, DMARC)
  • Automated scan reports without valid proof of concept
  • Physical tampering of the device (I/O devices such as USB, SIM, and SD card slots are in scope)
  • 3rd party integration
  • Reports requiring a rooted/jailbroken device
  • Duplicate/known submissions
  • Load Testing (DoS, DDoS, wireless jamming, etc.)
  • Social engineering attacks
  • Theoretical security issues
  • Protocol-specific flaws

Additionally, as an Internet Service Provider, technologies hosted by residential or business customers are considered out-of-scope. These can typically be identified by the FQDN format below.

*.hfc.comcastbusiness.net
*.hsd1.*.comcast.net

Rules

Researchers must have explicit permission from the account owner to perform any form of security testing.

Researchers may not be a current or former employee, contractor or immediate family member.

Note: This program adheres to Bugcrowd's coordinated disclosure terms. We ask that you provide us a copy of your disclosure report prior to publication and do not publicly report findings until they been fully remediated.

Program rules

This program follows Bugcrowd’s standard disclosure terms.

This program does not offer financial or point-based rewards for P5 — Informational findings. Learn more about Bugcrowd’s VRT.