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JS: Support Parameter[this] token
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+77
-62
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4 files changed

+77
-62
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‎javascript/ql/lib/semmle/javascript/frameworks/data/internal/ApiGraphModelsSpecific.qll

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Original file line numberDiff line numberDiff line change
@@ -120,6 +120,10 @@ API::Node getExtraSuccessorFromNode(API::Node node, AccessPathToken token) {
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// API graphs do not use store/load steps for arrays
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token.getName() = ["ArrayElement", "Element"] and
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result = node.getUnknownMember()
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or
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token.getName() = "Parameter" and
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token.getAnArgument() = "this" and
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result = node.getReceiver()
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}
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/**

‎javascript/ql/test/library-tests/frameworks/data/test.expected

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@@ -14,69 +14,71 @@ taintFlow
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| test.js:24:43:24:50 | source() | test.js:24:8:24:51 | testlib ... urce()) |
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| test.js:31:29:31:36 | source() | test.js:32:10:32:10 | y |
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| test.js:37:29:37:36 | source() | test.js:38:10:38:10 | y |
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| test.js:46:18:46:25 | source() | test.js:46:18:46:25 | source() |
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| test.js:47:22:47:29 | source() | test.js:47:22:47:29 | source() |
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| test.js:49:24:49:31 | source() | test.js:49:24:49:31 | source() |
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| test.js:53:27:53:34 | source() | test.js:53:27:53:34 | source() |
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| test.js:58:31:58:38 | source() | test.js:58:31:58:38 | source() |
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| test.js:62:34:62:41 | source() | test.js:62:34:62:41 | source() |
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| test.js:67:31:67:38 | source() | test.js:67:31:67:38 | source() |
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| test.js:68:34:68:41 | source() | test.js:68:34:68:41 | source() |
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| test.js:72:36:72:43 | source() | test.js:72:36:72:43 | source() |
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| test.js:73:39:73:46 | source() | test.js:73:39:73:46 | source() |
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| test.js:75:28:75:35 | source() | test.js:75:28:75:35 | source() |
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| test.js:76:31:76:38 | source() | test.js:76:31:76:38 | source() |
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| test.js:77:34:77:41 | source() | test.js:77:34:77:41 | source() |
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| test.js:81:28:81:35 | source() | test.js:81:28:81:35 | source() |
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| test.js:87:17:87:24 | source() | test.js:87:17:87:24 | source() |
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| test.js:88:17:88:24 | source() | test.js:88:17:88:24 | source() |
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| test.js:89:17:89:24 | source() | test.js:89:17:89:24 | source() |
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| test.js:43:29:43:36 | source() | test.js:44:10:44:10 | y |
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| test.js:47:33:47:40 | source() | test.js:49:10:49:13 | this |
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| test.js:54:18:54:25 | source() | test.js:54:18:54:25 | source() |
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| test.js:55:22:55:29 | source() | test.js:55:22:55:29 | source() |
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| test.js:57:24:57:31 | source() | test.js:57:24:57:31 | source() |
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| test.js:61:27:61:34 | source() | test.js:61:27:61:34 | source() |
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| test.js:66:31:66:38 | source() | test.js:66:31:66:38 | source() |
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| test.js:70:34:70:41 | source() | test.js:70:34:70:41 | source() |
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| test.js:75:31:75:38 | source() | test.js:75:31:75:38 | source() |
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| test.js:76:34:76:41 | source() | test.js:76:34:76:41 | source() |
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| test.js:80:36:80:43 | source() | test.js:80:36:80:43 | source() |
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| test.js:81:39:81:46 | source() | test.js:81:39:81:46 | source() |
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| test.js:83:28:83:35 | source() | test.js:83:28:83:35 | source() |
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| test.js:84:31:84:38 | source() | test.js:84:31:84:38 | source() |
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| test.js:85:34:85:41 | source() | test.js:85:34:85:41 | source() |
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| test.js:89:28:89:35 | source() | test.js:89:28:89:35 | source() |
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| test.js:95:17:95:24 | source() | test.js:95:17:95:24 | source() |
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| test.js:96:17:96:24 | source() | test.js:96:17:96:24 | source() |
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| test.js:97:17:97:24 | source() | test.js:97:17:97:24 | source() |
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isSink
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| test.js:46:18:46:25 | source() | test-sink |
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| test.js:47:22:47:29 | source() | test-sink |
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| test.js:49:24:49:31 | source() | test-sink |
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| test.js:53:27:53:34 | source() | test-sink |
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syntaxErrors
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| Member[foo |
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| Member[foo] .Member[bar] |

‎javascript/ql/test/library-tests/frameworks/data/test.js

Lines changed: 8 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -40,6 +40,14 @@ function testPreserveTaint() {
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testlib.taintIntoCallback(source(), undefined, undefined, y => {
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sink(y); // OK - only callback 1-2 receive taint
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});
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testlib.taintIntoCallback(source(), function(y) {
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sink(y); // NOT OK
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sink(this); // OK - receiver is not tainted
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});
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testlib.taintIntoCallbackThis(source(), function(y) {
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sink(y); // OK - only receiver is tainted
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sink(this); // NOT OK
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});
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}
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function testSinks() {

‎javascript/ql/test/library-tests/frameworks/data/test.ql

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Original file line numberDiff line numberDiff line change
@@ -9,6 +9,7 @@ class Steps extends ModelInput::SummaryModelCsv {
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[
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"testlib;;Member[preserveTaint];Argument[0];ReturnValue;taint",
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"testlib;;Member[taintIntoCallback];Argument[0];Argument[1..2].Parameter[0];taint",
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"testlib;;Member[taintIntoCallbackThis];Argument[0];Argument[1..2].Parameter[this];taint",
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"testlib;;Member[preserveArgZeroAndTwo];Argument[0,2];ReturnValue;taint",
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"testlib;;Member[preserveAllButFirstArgument];Argument[1..];ReturnValue;taint",
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"testlib;;Member[preserveAllIfCall].Call;Argument[0..];ReturnValue;taint"

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