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fix a FN for prototype polluting function query

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This commit is contained in:
Stephan Brandauer
2022-04-28 16:16:29 +02:00
parent f6769735e5
commit 3f13a5e082
3 changed files with 198 additions and 9 deletions
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169
javascript/ql/test/query-tests/Security/CWE-915/PrototypePollutingFunction/PrototypePollutingFunction.expected
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@@ -1406,6 +1406,78 @@ nodes
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edges
| examples/PrototypePollutingFunction.js:1:16:1:18 | dst | examples/PrototypePollutingFunction.js:5:19:5:21 | dst |
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@@ -3179,6 +3251,102 @@ edges
| tests.js:529:28:529:30 | key | tests.js:529:24:529:31 | src[key] |
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| tests.js:545:43:545:47 | value | tests.js:542:35:542:37 | src |
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#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 |
@@ -3209,3 +3377,4 @@ edges
| tests.js:489:13:489:15 | dst | tests.js:484:14:484:16 | key | tests.js:489:13:489:15 | dst | Properties are copied from $@ to $@ without guarding against prototype pollution. | tests.js:484:21:484:23 | src | src | tests.js:489:13:489:15 | dst | dst |
| tests.js:517:35:517:37 | dst | tests.js:511:19:511:25 | keys[i] | tests.js:517:35:517:37 | dst | Properties are copied from $@ to $@ without guarding against prototype pollution. | tests.js:509:28:509:30 | src | src | tests.js:517:35:517:37 | dst | dst |
| tests.js:529:13:529:15 | dst | tests.js:525:14:525:16 | key | tests.js:529:13:529:15 | dst | Properties are copied from $@ to $@ without guarding against prototype pollution. | tests.js:525:21:525:23 | src | src | tests.js:529:13:529:15 | dst | dst |
| tests.js:547:13:547:15 | dst | tests.js:538:18:538:24 | keys[i] | tests.js:547:13:547:15 | dst | Properties are copied from $@ to $@ without guarding against prototype pollution. | tests.js:535:30:535:32 | obj | obj | tests.js:547:13:547:15 | dst | dst |

18
javascript/ql/test/query-tests/Security/CWE-915/PrototypePollutingFunction/tests.js
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@@ -530,3 +530,21 @@ function copyUsingForInAndRest(...args) {
}
}
}
function forEachPropNoTempVar(obj, callback) {
const keys = Object.keys(obj)
const len = keys.length
for (let i = 0; i < len; i++) {
callback(keys[i], obj[keys[i]])
}
}
function mergeUsingCallback3(dst, src) {
forEachPropNoTempVar(src, (key, value) => {
if (dst[key]) {
mergeUsingCallback3(dst[key], value);
} else {
dst[key] = value; // NOT OK
}
});
}