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GHSA-9c2p-jw8p-f84v
No affected components available
Affected versions of sequelize cast arrays to strings and fail to properly escape the resulting SQL statement, resulting in a SQL injection vulnerability.
Proof of Concept
In Postgres, SQLite, and Microsoft SQL Server there is an issue where arrays are treated as strings and improperly escaped.
Example Query:
database.query('SELECT * FROM TestTable WHERE Name IN (:names)', {
replacements: {
names: directCopyOfUserInput
}
});
If the user inputs the value of :names as:
["test", "'); DELETE TestTable WHERE Id = 1 --')"]
The resulting SQL statement will be:
SELECT Id FROM Table WHERE Name IN ('test', '\'); DELETE TestTable WHERE Id = 1 --')
As the backslash has no special meaning in PostgreSQL, MSSQL, or SQLite, the statement will delete the record in TestTable with an Id of 1.
Recommendation
Update to version 3.20.0 or later.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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