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JS: Port tutorial query4

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Asger F
2024-11-28 11:59:45 +01:00
parent 1f6335f9ba
commit 02c5e49de8
1 changed files with 8 additions and 8 deletions
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16
javascript/ql/test/tutorials/Analyzing data flow in JavaScript/Global data flow/query4.ql
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@@ -1,17 +1,15 @@
import javascript
class CommandLineFileNameConfiguration extends TaintTracking::Configuration {
CommandLineFileNameConfiguration() { this = "CommandLineFileNameConfiguration" }
override predicate isSource(DataFlow::Node source) {
module CommandLineFileNameConfig implements DataFlow::ConfigSig {
predicate isSource(DataFlow::Node source) {
DataFlow::globalVarRef("process").getAPropertyRead("argv").getAPropertyRead() = source
}
override predicate isSink(DataFlow::Node sink) {
predicate isSink(DataFlow::Node sink) {
DataFlow::moduleMember("fs", "readFile").getACall().getArgument(0) = sink
}
override predicate isAdditionalTaintStep(DataFlow::Node pred, DataFlow::Node succ) {
predicate isAdditionalFlowStep(DataFlow::Node pred, DataFlow::Node succ) {
exists(DataFlow::CallNode c |
c = DataFlow::moduleImport("resolve-symlinks").getACall() and
pred = c.getArgument(0) and
@@ -20,6 +18,8 @@ class CommandLineFileNameConfiguration extends TaintTracking::Configuration {
}
}
from CommandLineFileNameConfiguration cfg, DataFlow::Node source, DataFlow::Node sink
where cfg.hasFlow(source, sink)
module CommandLineFileNameFlow = TaintTracking::Global<CommandLineFileNameConfig>;
from DataFlow::Node source, DataFlow::Node sink
where CommandLineFileNameFlow::flow(source, sink)
select source, sink