About

Deezer

The Deezer platform provides an innovative music streaming service that has attracted millions of users worldwide. Deezer lets them instantly play the music they want to hear and guarantees high-quality sound, diversification and personalized music curation.

Deezer is committed to working with security experts across the world to stay up to date with the latest security techniques. If you have discovered a security issue that you believe we should know about, please let us know about it and we'll do our best to quickly correct the issue.

We take security issues seriously and we're big believers in protecting privacy and security. Our bug bounty programs has been put in place to give a tip of the hat to software security researchers.

Program Rules

Testing Policy and Responsible Disclosure

Please adhere to the following rules while performing research on this program:

• Denial of service (DoS) attacks on Deezer applications, servers, networks or infrastructure are strictly forbidden.
• Avoid tests that could cause degradation or interruption of our services.
• Do not use automated scanners or tools that generate large amount of network traffic.
• Do not leak, manipulate, or destroy any user data or files in any of our applications/servers.
• Do not copy any files from our applications/servers and disclose them.
• No vulnerability disclosure, full, partial or otherwise, is allowed.

Reward Eligibility

We are happy to thank everyone who submits valid reports which help us improve the security of Deezer, however only those that meet the following eligibility requirements may receive a monetary reward:

• You must be the first reporter of a vulnerability.
• The vulnerability must be a qualifying vulnerability (see below).
• The report must contain the following elements:
  • Clear textual description of the vulnerability, how it can be exploited, the security impact it has on the application, its users and Deezer, and remediation advice on fixing the vulnerability
  • Proof of exploitation: screenshots demonstrating the exploit was performed, and showing the final impact
  • Provide complete steps with the necessary information to reproduce the exploit, including (if necessary) code snippets, payloads, commands etc
• You must not break any of the testing policy rules listed above
• You must not be a former or current employee of Deezer or one of its contractors.

Reward amounts are based on:

• Reward grid of the report's scope
• CVSS scoring and actual business impact of the vulnerability upon performing risk analysis

Reports of leaks and exposed credentials

In the context of this program, we do not intend to encourage, accept or reward reports of leaks that are not applicable to our program’s scope and identified outside of our program’s scope, such as:

• Exposed credentials in/from an out-of-scope asset/source
• Sensitive information exposed in/from an out-of-scope asset/source

Also, in order not to encourage dark and grey economies, in particular the purchase, resale and trade of identifiers or stolen information, as well as all types of dangerous behavior (e.g. social engineering, ...), we will not accept or reward any report based on information whose source is not the result of failure on the part of our organization or one of our employees/service providers.

This excludes, but is not limited to:

• Stolen credentials gathered from unidentified sources (e.g. …)
• Exposed credentials that are not applicable on the program’s scope
• Exposed GitHub/GitLab (or similar) instance with no direct relation with our program’s scope
• Exposed secrets (e.g. API tokens/keys or other technical credentials) that are not directly related to the program’s scope
• Exposed PII on an out-of-scope asset

To summarize our policy, you may refer to this table:

Important precautions and limitations

As a complement to the Program’s rules and testing policy :

• DO NOT alter compromised accounts by creating, deleting or modifying any data
• DO NOT use compromised accounts to search for post-auth vulnerabilities (they won’t be eligible anyway)
• DO NOT include Personally Identifiable Information (PII) in your report and please REDACT/OBFUSCATE the PII that is part of your PoC (screenshot, server response, JSON file, etc.) as much as possible.
• In case of exposed credentials or secrets, limit yourself to verifying the credentials validity
• In case of sensitivie information leak, DO NOT extract/copy every document or data that is exposed and limit yourself to describe and list what is exposed.

Complements about our scopes

Deezer Bug Bounty Program

• If your Deezer account is deactivated by our system because it detected a malicious attempt, please contact the Bounty Program manager to ask for its re-activation.

• The user agent bug-bounty-hunterName (replace hunterName by your nickname) is mandatory during your tests. If you don’t use it, we may ban you from the program for security reasons.

• Note that it can happen sometimes that our teams are already aware and working on a vulnerability before your reported it, we'll thank you for having reported it nevertheless in that case the report won't be eligible for a reward.

• Any non-security related issue will not be eligible for a money reward. Bugs, wrong interface or API behavior, etc. should be sent to http://support.deezer.com/requests/new