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70 lines
1.9 KiB
Plaintext
70 lines
1.9 KiB
Plaintext
------------------------------ MODULE AttackerHarness_BadIgnoresNodeDeclare ------------------------------
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EXTENDS Naturals, Sequences, FiniteSets
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(******************************************************************************
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* Negative test: buggy attacker harness where nodes.run ignores declaredCommands.
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******************************************************************************)
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CONSTANTS
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Tools,
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SensitiveTools,
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PolicyAllowShared,
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PolicyAllowMain,
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NodesRunTool,
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NodeCommandAllowlisted,
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NodeCommandDeclared,
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MaxQueueLen,
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MaxExecLen
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ASSUME
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/\ Tools /= {}
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/\ SensitiveTools \subseteq Tools
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/\ PolicyAllowShared \subseteq Tools
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/\ PolicyAllowMain \subseteq Tools
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/\ NodesRunTool \in Tools
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/\ NodeCommandAllowlisted \in BOOLEAN
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/\ NodeCommandDeclared \in BOOLEAN
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/\ MaxQueueLen \in 0..5
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/\ MaxExecLen \in 0..5
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SessionTypes == {"main", "shared"}
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VARIABLES sessionType, inbox, executed
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vars == << sessionType, inbox, executed >>
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\* BUG: ignores NodeCommandDeclared
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Allowed(t) ==
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LET policyOk == IF sessionType = "shared" THEN t \in PolicyAllowShared ELSE t \in PolicyAllowMain
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nodesOk == IF t = NodesRunTool THEN NodeCommandAllowlisted ELSE TRUE
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IN policyOk /\ nodesOk
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Init ==
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/\ sessionType = "shared"
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/\ inbox = << >>
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/\ executed = << >>
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AttackerSend(t) ==
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/\ t \in Tools
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/\ Len(inbox) < MaxQueueLen
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/\ inbox' = Append(inbox, t)
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/\ UNCHANGED << sessionType, executed >>
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AgentStep ==
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/\ Len(inbox) > 0
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/\ LET t == Head(inbox)
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IN /\ inbox' = Tail(inbox)
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/\ executed' = IF Allowed(t) /\ Len(executed) < MaxExecLen THEN Append(executed, t) ELSE executed
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/\ UNCHANGED << sessionType >>
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Next ==
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(\E t \in Tools: AttackerSend(t))
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\/ AgentStep
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Spec == Init /\ [][Next]_vars
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Inv_NoSensitiveExecInShared ==
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sessionType = "shared" =>
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\A i \in 1..Len(executed): executed[i] \notin SensitiveTools
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=============================================================================
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