Summary A jdbc attack vulnerability exists in OpenRefine(version<=3.7.7)

Details Vulnerability Recurrence Start by constructing a malicious MySQL Server (using the open source project MySQLFakeServer here). !image Then go to the Jdbc connection trigger vulnerability !image Vulnerability Analysis This vulnerability is the bypass of CVE-2023-41887 vulnerability repair, the main vulnerability principle is actually the use of official syntax features, as shown in the following figure, when the connection we can perform parameter configuration in the Host part !image In com.google.refine.extension.database.mysql.MySQLConnectionManager#getConnection method in the final JdbcUrl structure !image That is, in the toURI method call here, you can see that the Host part is directly concatenated for any verification, which can be bypassed using the address feature of mysql !image That is, in the toURI method call here, you can see that the Host part is directly concatenated for any verification, which can be bypassed using the address feature of mysql !image

PoC Complete instructions, including specific configuration details, to reproduce the vulnerability. Type: MySQL Host: 127.0.0.1:3306,(host=127.0.0.1,port=3306,autoDeserialize=true,allowLoadLocalInfile=true,allowUrlInLocalInfile=true,allowLoadLocalInfileInPath=true),127.0.0.1 Port: 3306 User: winhosts Database: test

Impact Due to the newer MySQL driver library in the latest version of OpenRefine (8.0.30), there is no associated deserialization utilization point, so original code execution cannot be achieved, but attackers can use this vulnerability to read sensitive files on the target server.

Impact

A carefully crafted malicious OpenRefine project tar file can be used to trigger arbitrary code execution if a user can be convinced to import it.

Patches

The vulnerability exists in all versions of OpenRefine up to and including 3.7.3. Users should update to OpenRefine 3.7.4 as soon as possible.

Workarounds

Only import OpenRefine projects from trusted sources.

References

A similar issue existed in the Create Project feature (CVE-2018-19859), which was fixed by PR #1901.

OpenRefine through 3.1 allows arbitrary file write because Directory Traversal can occur during the import of a crafted project file.