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  1. mod-inventory-storage
  2. MODINVSTOR-293

CQL identifiers=")" fails with "invalid regular expression: parentheses () not balanced" SQL Injection

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    • CP: sprint 65
    • 1
    • Core: Platform

    Description

      The CQL query

      identifiers=")"
      

      is valid, parentheses need no masking inside of quotes.
      Apply urlencoding:

      identifiers%3D%22%29%22
      

      Invoke curl:

      curl -H "X-Okapi-Tenant: diku"  http://localhost:8081/instance-storage/instances?query=identifiers%3D%22%29%22
      

      There is SQL injection resulting in this error message:

      ErrorMessage(fields=Map(Line -> 208, File -> regexp.c, SQLSTATE -> 2201B, Routine -> RE_compile_and_cache, V -> ERROR, Message -> invalid regular expression: parentheses () not balanced, Severity -> ERROR))
      

      This is the produced SQL:

      WHERE lower(f_unaccent(instance.jsonb->>'identifiers')) ~ lower(f_unaccent('(^|[[:punct:]]|[[:space:]]|(?=[[:punct:]]|[[:space:]])))($|[[:punct:]]|[[:space:]]|(?<=[[:punct:]]|[[:space:]]))')) LIMIT 10 OFFSET 0
      

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                julianladisch Julian Ladisch
                julianladisch Julian Ladisch
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