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
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Medium 4.3
Authorization Bypass in Liferay Portal
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Medium 4.3
Incorrect authorization during display of Audit Events in GitLab EE affecting all versions from 14.5 prior to 15.3.5, 1…
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Medium 6.3
WordPress wpForo Forum plugin <= 2.0.5 - Insecure direct object references (IDOR) vulnerability
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Medium 5.4
WordPress wpForo Forum plugin <= 2.0.5 - Insecure direct object references (IDOR) vulnerability
Insecure direct object references (IDOR) vulnerability in the wpForo Forum plugin <= 2.0.5 on WordPress allows attackers with subscriber or higher user roles to mark any forum post as solved/unsolved.
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Medium 5.4
Insecure Direct Object Reference Vulnerability: Orion Platform 2020.2.6
Users with Node Management rights were able to view and edit all nodes due to Insufficient control on URL parameter causing insecure direct object reference (IDOR) vulnerability in SolarWinds Platform 2022.3 and previous.
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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 4.3
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Medium 6.5
Authorization Bypass Through User-Controlled Key in openemr/openemr
Authorization Bypass Through User-Controlled Key in GitHub repository openemr/openemr prior to 7.0.0.1.
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Medium 6.4
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Medium 6.5
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Medium 4.3
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Medium 6.5
Authorization Bypass Through User-Controlled Key in ionicabizau/parse-path
Authorization Bypass Through User-Controlled Key in GitHub repository ionicabizau/parse-path prior to 5.0.0.
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Medium 4.2
Authorization Bypass Through User-Controlled Key when using CILogonOAuthenticator in oauthenticator
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Medium 6.3
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Medium 5.0
Possibility for anyone to add a stack with existing tasks on anyone's board in Nextcloud Deck
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Medium 6.5
Shopizer - IDOR delete superadmin
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Medium 5.4CVE-2021-46416 Public exploit
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Medium 6.4
Authorization Bypass Through User-Controlled Key in Rundeck
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Medium 5.4
Improper Access Control (IDOR) in dolibarr/dolibarr
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Medium 6.5
Authorization Bypass Through User-Controlled Key in unshiftio/url-parse
Authorization Bypass Through User-Controlled Key in NPM url-parse prior to 1.5.9.
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Medium 6.5
Authorization Bypass Through User-Controlled Key in unshiftio/url-parse
Authorization Bypass Through User-Controlled Key in NPM url-parse prior to 1.5.8.
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Medium 6.5
Authorization Bypass Through User-Controlled Key in unshiftio/url-parse
Authorization Bypass Through User-Controlled Key in NPM url-parse prior to 1.5.7.
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Medium 5.3
Authorization Bypass Through User-Controlled Key in medialize/uri.js
Authorization Bypass Through User-Controlled Key in NPM urijs prior to 1.19.8.
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Medium 4.3
Exposure of Sensitive Information in Grafana
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Medium 6.5
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Medium 6.3
Authorization Bypass Through User-Controlled Key in weseek/growi
growi is vulnerable to Authorization Bypass Through User-Controlled Key
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Medium 4.3
Authorization Bypass Through User-Controlled Key in elgg/elgg
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Medium 6.5
Improper Access Control in kevinpapst/kimai2
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Medium 6.5
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Medium —
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Medium —
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Medium 5.4
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Medium 6.5
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Medium 6.5
Circle can be accessed by non-Circle members in Nextcloud Deck
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Medium 6.5
Insecure direct object reference of log files of the Import/Export feature
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Medium 5.3
Jetpack < 9.8 - Carousel Module Non-Published Page/Post Attachment Comment Leak
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Medium 5.5
Windows TCP/IP Driver Security Feature Bypass Vulnerability
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