toom Baumarkt GmbH Bug Bounty Program

About

toom Baumarkt GmbH

With more than 300 stores in its portfolio (toom Baumarkt, B1 Discount Baumarkt and Klee Gartenfachmarkt), around 18,000 employees and gross sales of 2.9 billion euros, toom is one of the leading providers in the German DIY sector. The company is part of the REWE Group. The cooperative REWE Group is one of the leading trading and travel and tourism groups in Germany and Europe. In 2021, the company achieved a total external turnover of 76.5 billion euros. Founded in 1927, REWE Group is present in 21 European countries with around 380,000 employees.

Security is very important to us and this Bug Bounty program shall help us meet highest industry standards to offer the most secure service and experience to all parties.

toom Baumarkt GmbH Web-Site

Our main site toom.de is build on top of an popular CMS and a shop system. It is our primary touchpoint to all types of customers.

Program Rules

Testing Policy and Responsible Disclosure

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

• Extensive usage of AI to generate hypothetical reports is strictly forbidden.
• Denial of service (DoS) attacks on toom Baumarkt GmbH 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 toom Baumarkt GmbH, 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 toom Baumarkt GmbH, 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 toom Baumarkt GmbH 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

Reward Grid

Scopes

Out of Scope

• All domains or subdomains not listed in the above list of 'Scopes'.

Vulnerability Types

Qualifying Vulnerabilities

• SQL Injection (SQLi)
• Cross-Site Scripting (XSS)
• Remote Code Execution (RCE)
• Insecure Direct Object Reference (IDOR)
• Horizontal and vertical privilege escalation
• Authentication bypass & broken authentication
• Business Logic Errors vulnerability with real security impact
• Local files access and manipulation (LFI, RFI, XXE, SSRF, XSPA)
• Cross-Origin Resource Sharing (CORS) with real security impact
• Cross-site Request Forgery (CSRF) with real security impact
• Open Redirect
• Ability to spam users (email / SMS / direct messages flooding)

Non-Qualifying Vulnerabilities

• Tabnabbing
• Missing cookie flags
• Content/Text injections
• Mixed content warnings
• Clickjacking/UI redressing
• Denial of Service (DoS) attacks
• Known CVEs without working PoC
• Open ports without real security impact
• Social engineering of staff or contractors
• Presence of autocomplete attribute on web forms
• Vulnerabilities affecting outdated browsers or platforms
• Self-XSS or XSS that cannot be used to impact other users
• Outdated libraries without a demonstrated security impact
• Any hypothetical flaw or best practices without exploitable PoC
• Expired certificate, best practices and other related issues for TLS/SSL certificates
• Unexploitable vulnerabilities (ex: XSS or Open Redirect in HTTP Host Header)
• Reports with attack scenarios requiring MITM or physical access to victim's device
• Missing security-related HTTP headers which do not lead directly to a vulnerability
• Unauthenticated / Logout / Login and other low-severity Cross-Site Request Forgery (CSRF)
• Invalid or missing SPF (Sender Policy Framework), DKIM, DMARC records
• Session expiration policies (no automatic logout, invalidation after a certain time or after a password change)
• Disclosure of information without direct security impact (e.g. stack traces, path disclosure, directory listings, software versions, IP disclosure, 3rd party secrets)
• CSV injection
• HTTP Strict Transport Security Header (HSTS)
• Subdomain takeover without a full working PoC
• Blind SSRF without direct impact (e.g. DNS pingback)
• Lack of rate-limiting, brute-forcing or captcha issues
• Password requirements policies (length / complexity / reuse)
• Disclosed / misconfigured Google API key (including Google Maps)
• Recently disclosed 0-day vulnerabilities
• Password reset token leak on trusted third-party website via Referer header (eg Google Analytics, Facebook…)
• User enumeration (email, alias, GUID, phone number)

Hunting Requirements

Account Access

You can self-register as customer on toom.de. Other registrations are not required.

Please use your YesWeHack email aliases for account creation.

Hunters Collaboration

When submitting new report, you can add up to 5 collaborators, and define the reward split ratio.