Weakness (CWE)
CWE-639: Authorization Bypass Through User-Controlled Key
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
More detail
It is likely that an attacker would have to be an authenticated user in the system. However, the authorization process would not properly check the data access operation to ensure that the authenticated user performing the operation has sufficient entitlements to perform the requested data access, hence bypassing any other authorization checks present in the system.
For example, attackers can look at places where user specific data is retrieved (e.g. search screens) and determine whether the key for the item being looked up is controllable externally. The key may be a hidden field in the HTML form field, might be passed as a URL parameter or as an unencrypted cookie variable, then in each of these cases it will be possible to tamper with the key value.
How to prevent it (3 mitigations)
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Architecture and Design
For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
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Architecture and Design, Implementation
Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
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Architecture and Design
Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.
Source: MITRE CWE-639
1,891 results · Clear filters · Feed
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Medium 5.3
Growatt Cloud portal Authorization Bypass Through User-Controlled Key
Unauthenticated attackers can obtain restricted information about a user's smart device collections (i.e., "rooms").
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Medium 5.3
Growatt Cloud portal Authorization Bypass Through User-Controlled Key
An unauthenticated attacker can obtain a serial number of a smart meter(s) using its owner's username.
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Medium 5.3
Growatt Cloud portal Authorization Bypass Through User-Controlled Key
An unauthenticated attacker can get users' emails by knowing usernames. A password reset email will be sent in response to this unsolicited request.
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Medium 5.3
Growatt Cloud portal Authorization Bypass Through User-Controlled Key
An unauthenticated attacker can infer the existence of usernames in the system by querying an API.
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Medium 5.3
Growatt Cloud portal Authorization Bypass Through User-Controlled Key
An unauthenticated attacker can obtain a list of smart devices by knowing a valid username.
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Medium 5.3
Growatt Cloud portal Authorization Bypass Through User-Controlled Key
An unauthenticated attacker can obtain a user's plant list by knowing the username.
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Medium 5.3
Growatt Cloud portal Authorization Bypass Through User-Controlled Key
An authenticated attacker can obtain any plant name by knowing the plant ID.
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Medium 5.3
Growatt Cloud Applications Authorization Bypass Through User-Controlled Key
An unauthenticated attacker can check the existence of usernames in the system by querying an API.
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Medium 5.3
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Medium 4.3
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Medium 6.5
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Medium 5.4
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Medium 4.9
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Medium 4.3
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Medium 6.5CVE-2024-9617 Scanner template
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Medium 4.2
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Medium 6.5
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Medium 4.3
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Medium 4.3
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Medium 4.3
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Medium 6.5
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Medium 5.3
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Medium 6.5
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Medium 4.3
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Medium 5.3
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Medium 4.3
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Medium 4.3
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Medium 4.3
ProfileGrid – User Profiles, Groups and Communities <= 5.9.4.2 - Insecure Direct Object Reference to Authenticated (Subscriber+) Private Messages Disclosure
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Medium 4.3
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Medium 6.6
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Medium 4.3
Builder Shortcode Extras – WordPress Shortcodes Collection to Save You Time <= 1.0.0 - Authenticated (Contributor+) Post Disclosure
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Medium 4.3
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Medium 4.3
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Medium 5.3
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