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generalize BarrierGuardFunctionto work on function that have multiple parameters

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This commit is contained in:
erik-krogh
2022-08-15 10:56:28 +02:00
parent 79bae0caeb
commit 3355a7a046
3 changed files with 75 additions and 4 deletions
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7
javascript/ql/lib/semmle/javascript/dataflow/Configuration.qll
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@@ -2018,6 +2018,7 @@ private class BarrierGuardFunction extends Function {
BarrierGuardNode guard;
boolean guardOutcome;
string label;
int paramIndex;
BarrierGuardFunction() {
barrierGuardIsRelevant(guard) and
@@ -2041,8 +2042,7 @@ private class BarrierGuardFunction extends Function {
sanitizedParameter.flowsToExpr(e) and
barrierGuardBlocksExpr(guard, guardOutcome, e, label)
) and
getNumParameter() = 1 and
sanitizedParameter.getParameter() = getParameter(0)
sanitizedParameter.getParameter() = getParameter(paramIndex)
}
/**
@@ -2051,8 +2051,7 @@ private class BarrierGuardFunction extends Function {
predicate isBarrierCall(DataFlow::CallNode call, Expr e, boolean outcome, string lbl) {
exists(DataFlow::Node arg |
arg.asExpr() = e and
arg = call.getArgument(0) and
call.getNumArgument() = 1 and
arg = call.getArgument(paramIndex) and
argumentPassing(call, arg, this, sanitizedParameter) and
outcome = guardOutcome and
lbl = label

57
javascript/ql/test/query-tests/Security/CWE-915/PrototypePollutingFunction/PrototypePollutingFunction.expected
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@@ -1528,6 +1528,31 @@ nodes
| tests.js:571:24:571:31 | src[key] |
| tests.js:571:28:571:30 | key |
| tests.js:571:28:571:30 | key |
| tests.js:576:30:576:32 | src |
| tests.js:576:30:576:32 | src |
| tests.js:577:14:577:16 | key |
| tests.js:577:14:577:16 | key |
| tests.js:577:14:577:16 | key |
| tests.js:580:38:580:40 | src |
| tests.js:580:38:580:40 | src |
| tests.js:580:38:580:45 | src[key] |
| tests.js:580:38:580:45 | src[key] |
| tests.js:580:38:580:45 | src[key] |
| tests.js:580:38:580:45 | src[key] |
| tests.js:580:38:580:45 | src[key] |
| tests.js:582:17:582:19 | key |
| tests.js:582:17:582:19 | key |
| tests.js:582:17:582:19 | key |
| tests.js:582:24:582:26 | src |
| tests.js:582:24:582:26 | src |
| tests.js:582:24:582:31 | src[key] |
| tests.js:582:24:582:31 | src[key] |
| tests.js:582:24:582:31 | src[key] |
| tests.js:582:24:582:31 | src[key] |
| tests.js:582:24:582:31 | src[key] |
| tests.js:582:24:582:31 | src[key] |
| tests.js:582:28:582:30 | key |
| tests.js:582:28:582:30 | key |
edges
| examples/PrototypePollutingFunction.js:1:16:1:18 | dst | examples/PrototypePollutingFunction.js:5:19:5:21 | dst |
| examples/PrototypePollutingFunction.js:1:16:1:18 | dst | examples/PrototypePollutingFunction.js:5:19:5:21 | dst |
@@ -3461,6 +3486,38 @@ edges
| tests.js:571:28:571:30 | key | tests.js:571:24:571:31 | src[key] |
| tests.js:571:28:571:30 | key | tests.js:571:24:571:31 | src[key] |
| tests.js:571:28:571:30 | key | tests.js:571:24:571:31 | src[key] |
| tests.js:576:30:576:32 | src | tests.js:580:38:580:40 | src |
| tests.js:576:30:576:32 | src | tests.js:580:38:580:40 | src |
| tests.js:576:30:576:32 | src | tests.js:582:24:582:26 | src |
| tests.js:576:30:576:32 | src | tests.js:582:24:582:26 | src |
| tests.js:577:14:577:16 | key | tests.js:582:17:582:19 | key |
| tests.js:577:14:577:16 | key | tests.js:582:17:582:19 | key |
| tests.js:577:14:577:16 | key | tests.js:582:17:582:19 | key |
| tests.js:577:14:577:16 | key | tests.js:582:17:582:19 | key |
| tests.js:577:14:577:16 | key | tests.js:582:17:582:19 | key |
| tests.js:577:14:577:16 | key | tests.js:582:17:582:19 | key |
| tests.js:577:14:577:16 | key | tests.js:582:17:582:19 | key |
| tests.js:577:14:577:16 | key | tests.js:582:28:582:30 | key |
| tests.js:577:14:577:16 | key | tests.js:582:28:582:30 | key |
| tests.js:577:14:577:16 | key | tests.js:582:28:582:30 | key |
| tests.js:577:14:577:16 | key | tests.js:582:28:582:30 | key |
| tests.js:580:38:580:40 | src | tests.js:580:38:580:45 | src[key] |
| tests.js:580:38:580:40 | src | tests.js:580:38:580:45 | src[key] |
| tests.js:580:38:580:45 | src[key] | tests.js:576:30:576:32 | src |
| tests.js:580:38:580:45 | src[key] | tests.js:576:30:576:32 | src |
| tests.js:580:38:580:45 | src[key] | tests.js:576:30:576:32 | src |
| tests.js:580:38:580:45 | src[key] | tests.js:576:30:576:32 | src |
| tests.js:580:38:580:45 | src[key] | tests.js:576:30:576:32 | src |
| tests.js:580:38:580:45 | src[key] | tests.js:576:30:576:32 | src |
| tests.js:582:24:582:26 | src | tests.js:582:24:582:31 | src[key] |
| tests.js:582:24:582:26 | src | tests.js:582:24:582:31 | src[key] |
| tests.js:582:24:582:26 | src | tests.js:582:24:582:31 | src[key] |
| tests.js:582:24:582:26 | src | tests.js:582:24:582:31 | src[key] |
| tests.js:582:24:582:31 | src[key] | tests.js:582:24:582:31 | src[key] |
| tests.js:582:28:582:30 | key | tests.js:582:24:582:31 | src[key] |
| tests.js:582:28:582:30 | key | tests.js:582:24:582:31 | src[key] |
| tests.js:582:28:582:30 | key | tests.js:582:24:582:31 | src[key] |
| tests.js:582:28:582:30 | key | tests.js:582:24:582:31 | src[key] |
#select
| examples/PrototypePollutingFunction.js:7:13:7:15 | dst | examples/PrototypePollutingFunction.js:2:14:2:16 | key | examples/PrototypePollutingFunction.js:7:13:7:15 | dst | Properties are copied from $@ to $@ without guarding against prototype pollution. | examples/PrototypePollutingFunction.js:2:21:2:23 | src | src | examples/PrototypePollutingFunction.js:7:13:7:15 | dst | dst |
| path-assignment.js:15:13:15:18 | target | path-assignment.js:8:19:8:25 | keys[i] | path-assignment.js:15:13:15:18 | target | The property chain $@ is recursively assigned to $@ without guarding against prototype pollution. | path-assignment.js:8:19:8:25 | keys[i] | here | path-assignment.js:15:13:15:18 | target | target |

15
javascript/ql/test/query-tests/Security/CWE-915/PrototypePollutingFunction/tests.js
View File

@@ -572,3 +572,18 @@ function copyHasOwnProperty3(dst, src) {
}
}
}
function indirectHasOwn(dst, src) {
for (let key in src) {
if (!src.hasOwnProperty(key)) continue;
if (hasOwn(dst, key) && isObject(dst[key])) {
indirectHasOwn(dst[key], src[key]);
} else {
dst[key] = src[key];
}
}
}
function hasOwn(obj, key) {
return obj.hasOwnProperty(key)
}