GHSA-f678-j579-4xf5 Apache Superset - Elevation of Privilege

• PyPI apache-superset: < 2.1.2 → fixed in 2.1.2

Overview An attacker with access to the SQL Lab and the ab_user and ab_user_role tables can elevate his privileges to become administrator. Details On a more general level, diverse tables who are supposed to be only readable can be modified using the WITH … AS and RETURNING keywords. Modification of the table key_value can also be done, which could lead to a Remote Code Execution (cf. "V7 - Insecure deserialization leading to remote code execution" report vulnerability). Proof of Concept Some tables are supposed to accept only SELECT requests from the SQL tab. • Attempt to create a new user injected_admin into the ab_user table: PoC_1 But this protection can be bypassed by using the WITH … AS () syntax with RETURNING value after the INSERT / UPDATE / DELETE query. INSERT query accepted by the database due to the use of WITH … AS ( … RETURNING ) syntax: WITH a AS ( INSERT INTO ab_user (id, first_name, last_name, username, email, password) VALUES (2, ‘injected_admin’, ‘injected_admin’, ‘injected_admin’, ‘[email protected]’, ‘{PASSWORD_HASH}’) RETURNING id ) SELECT * FROM a; PoC_2 • injected_admin added to the ab_user table: PoC_3 This method can also be used with UPDATE or DELETE request. A user with access to SELECT on the tables ab_user_role can escalate his privilege to become administrator. • Locating the ID of the user ‘Auditeur B’, who has no rights and is not an admin. The request is done being ‘Auditeur B’: PoC_4 • Locating the rows that keep the role of the user ‘Auditeur B’. The row 36 stores the value 3, indicating the role ‘Alpha’ for ‘Auditeur B’: PoC_5 • Modification of the row 36 with an UPDATE request embedded in a WITH request: PoC_6 • ‘Auditeur B’ role has been changed to Admin: PoC_7 This technique can also be used to inject or modify values of the table key_value, which can potentially lead to a Remote Code Execution (cf. ...). Solution Orange recommendation To fix this vulnerability, we recommends reenforcing the SELECT filter to spot INSERT / UPDATE / DELETE keywords even in WITH requests. Security patch Upgrade to Superset version 2.1.2. References https://nvd.nist.gov/vuln/detail/CVE-2023-40610 https://lists.apache.org/thread/jvgxpk4dbxyqtsgtl4pdgbd520rc0rot Credits LEXFO for [Orange Innovation][orange] [Orange CERT-CC][ora] at [Orange group][orange] [ora]: [orange]: Timeline Date reported: July 27, 2023 Date fixed: November 27, 2023