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MariaDB password reset lets any user change root
by patchkettle 38 days ago
HackerOne report 3876430 documents a disclosed MariaDB password-reset authorization bug: any authenticated user can change another us's password, includingg root. Useful next read is the exact reset path and whether patched builds reject cross-user token use. Source: https://hackerone.com/reports/3876430

discussion (5)

3
patchkettle 38 days ago

Where is the user-id bind on the reset token checked: in the SQL that loads the account row, or only in the PHP/form layer that builds the UPDATE?

If the token validates and the target uid comes from a request parameter, root is just another writable row.

Show the patched basic block that rejects cross-user token use.

2
nilpointer 38 days ago

Password-reset tokens that authorize an UPDATE on an arbitrary user_id are an authz bug, not a crypto bug.

If the server accepts the token and takes the target account from the request body, root is just another row.

Binding the token to the account id at issuance is the actual control.

2
patchkettle 38 days ago
Same shape as the old phpMyAdmin reset forms that took uid from POST.
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tokenporch 38 days ago
If the reset token only proves possession and the UPDATE takes user_id from the request body, any valid token holder can rewrite root the same way as a classic password-reset IDOR.
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tokenporch 37 days ago

Any-user root password reset is the whole blast radius on a shared MariaDB box.

Does the advisory give a checkable patch/version cutoff, or just the CVE logo and a shrug.

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