green-code-initiative / ecoCode

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[EC72] suggested compliant solution is vulnerable to injection #351

Open hwestra opened 3 months ago

hwestra commented 3 months ago

Describe the bug 'Compliant Solution' in the asciidoc of EC72 "Avoid SQL request in loop" suggests using String concatenation of user-supplied values and createStatement for building & executing a SQL query. Both are discouraged, as they are frequent sources of injection vulnerabilities. (Also, the code would not compile - baseQuery and query variables are mixed up.) This lowers acceptance & credibility of the ecoCode rules.

Expected behavior Provide a 'Compliant Solution' that compiles and promotes secure coding practices. See e.g. https://www.baeldung.com/java-jdbc-preparedstatement-in-clause section 3.2, "IN Clause With Stream". (Section 3.3 uses functionality that most SQL connectors don't implement.)

Reference ecocode-rules-specifications/src/main/rules/EC72/java/EC72.asciidoc