{"id":"8533a741-0bd6-4927-9d59-e64c34d3e625","engagementId":"67281854-c568-4616-9d12-ac8e361a6e3a","data":{"brief":{"id":"f79276c8-c8fc-4864-a6e4-d182a9c1e30c","name":"Blockchain.com Managed Bug Bounty Engagement","tagline":"The world’s leading crypto finance house serving people, projects, protocols and institutions since 2011.","description":"\u003cp\u003e\u003cstrong\u003eWelcome to the Blockchain.com Bug Bounty Program!\u003c/strong\u003e\u003c/p\u003e\n\n\u003cp\u003eAs a pioneer in the cryptocurrency space, Blockchain.com has been at the forefront of developing crucial infrastructure for the Bitcoin community. We started with the Blockchain Explorer, empowering users to examine transactions and understand the blockchain, and an API that enabled businesses to build on Bitcoin.  Furthermore, we provide a widely popular and user-friendly crypto wallet, allowing individuals globally to securely manage their own digital assets.\u003c/p\u003e\n\n\u003cp\u003eThank you for your interest in helping us enhance the security of our platform! Your contributions are highly valued.\u003c/p\u003e\n\n\u003ch2\u003eGetting Started\u003c/h2\u003e\n\n\u003cp\u003eIf you are new to Blockchain.com, we strongly encourage you to review our \u003ca href=\"https://www.blockchain.com/learning-portal#crypto-courses\" rel=\"nofollow noreferrer\" target=\"_blank\"\u003eSecurity Learning Portal\u003c/a\u003e to familiarise yourself with our products and their security considerations before submitting any reports.\u003c/p\u003e\n\n\u003ch2\u003eRatings/Rewards\u003c/h2\u003e\n\n\u003cp\u003e\u003cem\u003eFor the initial prioritization/rating of findings, this engagement will use the \u003ca href=\"https://bugcrowd.com/vulnerability-rating-taxonomy\" rel=\"nofollow noreferrer\" target=\"_blank\"\u003eBugcrowd Vulnerability Rating Taxonomy\u003c/a\u003e. However, it is important to note that in some cases a vulnerability priority will be modified due to its likelihood or impact. In any instance where an issue is downgraded, a full, detailed explanation will be provided to the researcher - along with the opportunity to appeal, and make a case for a higher priority.\u003c/em\u003e\u003c/p\u003e","industryTagId":"46b8dcc8-bbd9-4a60-80ab-ab088c2bc3e4","targetsOverview":"\u003cp\u003e\u003cem\u003eTesting is only authorized on the targets listed as in scope. Any domain/property of Blockchain.com not listed in the targets section is out of scope. This includes any/all subdomains not listed above. If you happen to identify a security vulnerability on a target that is not in scope, but it demonstrably belongs to Blockchain.com, you can report it to this engagement. However, be aware that it is ineligible for rewards or points-based compensation.\u003c/em\u003e\u003c/p\u003e\n\n\u003ch3\u003eCredentials\u003c/h3\u003e\n\n\u003cp\u003eTo gain access to the application, please sign up for an account using your @bugcrowdninja.com email address. For more info regarding @bugcrowdninja email addresses, see \u003ca href=\"https://docs.bugcrowd.com/researchers/participating-in-program/your-bugcrowdninja-email-address/\" rel=\"nofollow noreferrer\" target=\"_blank\"\u003ehere\u003c/a\u003e. You may register for accounts \u003ca href=\"https://login.blockchain.com/beta/auth/signup\" rel=\"nofollow noreferrer\" target=\"_blank\"\u003ehere\u003c/a\u003e.\u003c/p\u003e\n\n\u003ch3\u003eAccess/Traffic Identification\u003c/h3\u003e\n\n\u003cp\u003ePlease add the following header to your HTTP traffic to prevent interruptions and verify non-malicious behavior:\u003cbr\u003e\n\u003ccode\u003eX-Bug-Bounty:\u0026lt;bugcrowdusername\u0026gt;\u003c/code\u003e\u003c/p\u003e\n\n\u003ch2\u003eExcluded Submission Types\u003c/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https://bugcrowd.com/vulnerability-rating-taxonomy\" rel=\"nofollow noreferrer\" target=\"_blank\"\u003eP5 vulnerabilities\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003eAvailability/volumetric testing e.g.:\n\n\u003cul\u003e\n\u003cli\u003eDoS/DDoS/Network DoS\u003c/li\u003e\n\u003cli\u003eRate limiting bypass attempts\u003c/li\u003e\n\u003cli\u003eEmail bombing flooding\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\n\u003ch2\u003eN-day/Third party 0-day Policy\u003c/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eWhen N-Day bugs are released to the public, we will consider these as in scope after 14 days has gone by\n\n\u003cul\u003e\n\u003cli\u003ee.g: N-day released on 01/01/2025, we would consider it in-scope on 01/15/2025\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\n\u003ch2\u003eOut of Scope\u003c/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eRegistering multiple wallet accounts with the same email address is an intended feature.\u003c/li\u003e\n\u003cli\u003eInteracting or manipulate other stakeholders and their associated accounts including:\n\n\u003cul\u003e\n\u003cli\u003eSocial engineering attacks\u003c/li\u003e\n\u003cli\u003ePhishing attacks\u003c/li\u003e\n\u003cli\u003ePhysical attacks\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotential post-exploitation scenarios\u003c/strong\u003e: If you believe you've identified a vulnerability that may lead to post-exploitation activity including modification or destruction of data please stop testing and submit your finding. We will work with you to evaluate the vulnerability and award you accordingly for the final impact and severity.\u003c/li\u003e\n\u003c/ul\u003e\n\n\u003ch3\u003eThird party providers and services\u003c/h3\u003e\n\n\u003cp\u003eWeb applications operated by third parties are only considered in scope under the following ways:\u003c/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eAspects which we directly control such as our own DNS records for subdomains that point to third party applications are in scope.\u003c/li\u003e\n\u003cli\u003eVulnerabilities in third-party applications must first be reported to the vendor. We may optionally reward these issues on top of the vendor based on the outcome of that report.\u003c/li\u003e\n\u003c/ul\u003e\n\n\u003cp\u003eThe following assets represent third-party applications, along with their vendors to report issues to:\u003c/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eemail-clicks.blockchain.com (SendGrid)\u003c/li\u003e\n\u003cli\u003esupport.blockchain.com (ZenDesk)\u003c/li\u003e\n\u003cli\u003eblog.blockchain.com (Medium)\u003c/li\u003e\n\u003cli\u003edocs.blockchain.com (GitBook)\u003c/li\u003e\n\u003c/ul\u003e\n\n\u003ch2\u003eLeaked Credentials\u003c/h2\u003e\n\n\u003cp\u003eIf you happen to identify vulnerabilities involving data that has been exposed or leaked such as dark web forums or leaked credential sites. You can report it to this engagement. However, be aware that it is only eligible for points-based compensation. 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