/** * @name Unsafe shell command constructed from library input * @description Using externally controlled strings in a command line may allow a malicious * user to change the meaning of the command. * @kind path-problem * @problem.severity error * @security-severity 6.3 * @precision high * @id js/shell-command-constructed-from-input * @tags correctness * security * external/cwe/cwe-078 * external/cwe/cwe-088 */ import javascript import semmle.javascript.security.dataflow.UnsafeShellCommandConstructionQuery import DataFlow::PathGraph from Configuration cfg, DataFlow::PathNode source, DataFlow::PathNode sink, Sink sinkNode where cfg.hasFlowPath(source, sink) and sinkNode = sink.getNode() select sinkNode.getAlertLocation(), source, sink, "$@ based on $@ is later used in $@.", sinkNode.getAlertLocation(), sinkNode.getSinkType(), source.getNode(), "library input", sinkNode.getCommandExecution(), "shell command"