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47 changes: 46 additions & 1 deletion swift/ql/lib/codeql/swift/frameworks/StandardLibrary/Data.qll
Original file line number Diff line number Diff line change
@@ -1,6 +1,51 @@
import swift
private import codeql.swift.dataflow.ExternalFlow

private class DataSources extends SourceModelCsv {
override predicate row(string row) {
row = ";Data;true;init(contentsOf:options:);;;ReturnValue;remote"
}
}

private class DataSummaries extends SummaryModelCsv {
override predicate row(string row) { row = ";Data;true;init(_:);;;Argument[0];ReturnValue;taint" }
override predicate row(string row) {
row =
[
";Data;true;init(_:);;;Argument[0];ReturnValue;taint",
";Data;true;init(base64Encoded:options:);;;Argument[0];ReturnValue;taint",
";Data;true;init(buffer:);;;Argument[0];ReturnValue;taint",
";Data;true;init(bytes:count:);;;Argument[0];ReturnValue;taint",
";Data;true;init(contentsOf:options:);;;Argument[0];ReturnValue;taint",
";Data;true;init(bytesNoCopy:count:deallocator:);;;Argument[0];ReturnValue;taint",
";Data;true;init(referencing:);;;Argument[0];ReturnValue;taint",
";Data;true;append(_:);;;Argument[0];Argument[-1];taint",
";Data;true;append(_:count:);;;Argument[0];Argument[-1];taint",
";Data;true;append(contentsOf:);;;Argument[0];Argument[-1];taint",
";Data;true;base64EncodedData(options:);;;Argument[-1];ReturnValue;taint",
";Data;true;base64EncodedString(options:);;;Argument[-1];ReturnValue;taint",
";Data;true;compactMap(_:);;;Argument[-1];ReturnValue;taint",
";Data;true;copyBytes(to:);;;Argument[-1];Argument[0];taint",
";Data;true;copyBytes(to:count:);;;Argument[-1];Argument[0];taint",
";Data;true;copyBytes(to:from:);;;Argument[-1];Argument[0];taint",
";Data;true;flatMap(_:);;;Argument[-1];ReturnValue;taint",
";Data;true;insert(_:at:);;;Argument[0];Argument[-1];taint",
";Data;true;insert(contentsOf:at:);;;Argument[0];Argument[-1];taint",
";Data;true;map(_:);;;Argument[-1];ReturnValue;taint",
";Data;true;reduce(into:_:);;;Argument[-1];ReturnValue;taint",
";Data;true;replace(_:with:maxReplacements:);;;Argument[1];Argument[-1];taint",
";Data;true;replaceSubrange(_:with:);;;Argument[1];Argument[-1];taint",
";Data;true;replaceSubrange(_:with:count:);;;Argument[1];Argument[-1];taint",
";Data;true;replacing(_:with:maxReplacements:);;;Argument[1];Argument[-1];taint",
";Data;true;replacing(_:with:subrange:maxReplacements:);;;Argument[1];Argument[-1];taint",
// TODO: this should be implemented by a model of BidirectionalCollection
// ";Data;true;reversed();;;Argument[-1];ReturnValue;taint",
";Data;true;sorted();;;Argument[-1];ReturnValue;taint",
";Data;true;sorted(by:);;;Argument[-1];ReturnValue;taint",
";Data;true;sorted(using:);;;Argument[-1];ReturnValue;taint",
";Data;true;shuffled();;;Argument[-1];ReturnValue;taint",
";Data;true;shuffled(using:);;;Argument[-1];ReturnValue;taint",
";Data;true;trimmingPrefix(_:);;;Argument[-1];ReturnValue;taint",
";Data;true;trimmingPrefix(while:);;;Argument[-1];ReturnValue;taint"
]
}
}
4 changes: 0 additions & 4 deletions swift/ql/src/queries/Security/CWE-094/UnsafeJsEval.ql
Original file line number Diff line number Diff line change
Expand Up @@ -108,10 +108,6 @@ class UnsafeJsEvalConfig extends TaintTracking::Configuration {
])
).getArgument(0)
or
arg =
any(CallExpr ce | ce.getStaticTarget().(MethodDecl).hasQualifiedName("Data", "init(_:)"))
.getArgument(0)
or
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🎉

arg =
any(CallExpr ce |
ce.getStaticTarget().(MethodDecl).hasQualifiedName("String", "init(decoding:as:)")
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,8 @@
| customurlschemes.swift:38:52:38:62 | url | external |
| customurlschemes.swift:43:9:43:28 | ...[...] | Remote URL in UIApplicationDelegate.application.launchOptions |
| customurlschemes.swift:48:9:48:28 | ...[...] | Remote URL in UIApplicationDelegate.application.launchOptions |
| data.swift:18:20:18:20 | call to init(contentsOf:options:) | external |
| data.swift:18:20:18:54 | call to init(contentsOf:options:) | external |
| nsdata.swift:18:17:18:17 | call to init(contentsOf:) | external |
| nsdata.swift:18:17:18:40 | call to init(contentsOf:) | external |
| nsdata.swift:19:17:19:17 | call to init(contentsOf:options:) | external |
Expand Down
19 changes: 19 additions & 0 deletions swift/ql/test/library-tests/dataflow/flowsources/data.swift
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
// --- stubs ---

struct URL
{
init?(string: String) {}
}


struct Data {
struct ReadingOptions : OptionSet { let rawValue: Int }
init(contentsOf: URL, options: ReadingOptions) {}
}

// --- tests ---

func testData() {
let url = URL(string: "http://example.com/")
let data = try Data(contentsOf: url!, options: []) // SOURCE
}
Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
| data.swift:195:58:195:58 | &... | data.swift:195:58:195:73 | ...[...] |
| nsdata.swift:139:15:139:15 | nsDataTainted24 | nsdata.swift:139:15:139:31 | .bytes |
| nsdata.swift:140:15:140:15 | nsDataTainted24 | nsdata.swift:140:15:140:31 | .description |
| nsmutabledata.swift:49:15:49:15 | nsMutableDataTainted6 | nsmutabledata.swift:49:15:49:37 | .mutableBytes |
Expand Down
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