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geoffw0geoffw0
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Rust: Add source models for io.
1 parent 4f9f550 commit 7a9ea52

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4 files changed

+60
-14
lines changed

4 files changed

+60
-14
lines changed

‎rust/ql/lib/codeql/rust/Concepts.qll‎

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Original file line numberDiff line numberDiff line change
@@ -128,6 +128,32 @@ module FileSource {
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}
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}
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/**
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* A data flow source corresponding to standard input.
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*/
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final class StdInSource = StdInSource::Range;
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/**
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* An externally modeled source for data from standard input.
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*/
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class ModeledStdInSourceSource extends StdInSource::Range {
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ModeledStdInSourceSource() { sourceNode(this, "stdin") }
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}
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/**
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* Provides a class for modeling new sources for standard input.
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*/
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module StdInSource {
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/**
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* A data flow source corresponding to standard input.
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*/
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abstract class Range extends ThreatModelSource::Range {
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override string getThreatModel() { result = "stdin" }
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override string getSourceType() { result = "StdInSource" }
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}
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}
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/**
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* A data flow source corresponding to the program's database reads.
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*/

‎rust/ql/lib/codeql/rust/frameworks/stdlib/io.model.yml‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
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extensions:
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- addsTo:
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pack: codeql/rust-all
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extensible: sourceModel
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data:
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- ["lang:std", "crate::io::stdio::stdin", "ReturnValue", "stdin", "manual"]

‎rust/ql/test/library-tests/dataflow/sources/TaintSources.expected‎

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Original file line numberDiff line numberDiff line change
@@ -28,8 +28,22 @@
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| test.rs:221:22:221:25 | path | Flow source 'FileSource' of type file (DEFAULT). |
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| test.rs:222:27:222:35 | file_name | Flow source 'FileSource' of type file (DEFAULT). |
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| test.rs:228:22:228:34 | ...::read_link | Flow source 'FileSource' of type file (DEFAULT). |
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| test.rs:243:22:243:35 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:249:22:249:35 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:255:22:255:35 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:261:9:261:22 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:265:17:265:30 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:271:20:271:38 | ...::open | Flow source 'FileSource' of type file (DEFAULT). |
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| test.rs:304:50:304:63 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:310:50:310:63 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:317:50:317:63 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:324:50:324:63 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:331:56:331:69 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:338:50:338:63 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:345:50:345:63 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:351:50:351:63 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:360:25:360:43 | ...::open | Flow source 'FileSource' of type file (DEFAULT). |
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| test.rs:361:25:361:43 | ...::open | Flow source 'FileSource' of type file (DEFAULT). |
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| test.rs:369:25:369:43 | ...::open | Flow source 'FileSource' of type file (DEFAULT). |
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| test.rs:377:22:377:35 | ...::stdin | Flow source 'StdInSource' of type stdin (DEFAULT). |
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| test.rs:386:16:386:29 | ...::args | Flow source 'CommandLineArgs' of type commandargs (DEFAULT). |

‎rust/ql/test/library-tests/dataflow/sources/test.rs‎

Lines changed: 14 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -240,29 +240,29 @@ fn test_io_fs() -> std::io::Result<()> {
240240

241241
{
242242
let mut buffer = [0u8; 100];
243-
let _bytes = std::io::stdin().read(&mut buffer)?; // $ MISSING: Alert[rust/summary/taint-sources]
243+
let _bytes = std::io::stdin().read(&mut buffer)?; // $ Alert[rust/summary/taint-sources]
244244
sink(&buffer); // $ MISSING: hasTaintFlow
245245
}
246246

247247
{
248248
let mut buffer = Vec::<u8>::new();
249-
let _bytes = std::io::stdin().read_to_end(&mut buffer)?; // $ MISSING: Alert[rust/summary/taint-sources]
249+
let _bytes = std::io::stdin().read_to_end(&mut buffer)?; // $ Alert[rust/summary/taint-sources]
250250
sink(&buffer); // $ MISSING: hasTaintFlow
251251
}
252252

253253
{
254254
let mut buffer = String::new();
255-
let _bytes = std::io::stdin().read_to_string(&mut buffer)?; // $ MISSING: Alert[rust/summary/taint-sources]
255+
let _bytes = std::io::stdin().read_to_string(&mut buffer)?; // $ Alert[rust/summary/taint-sources]
256256
sink(&buffer); // $ MISSING: hasTaintFlow
257257
}
258258

259259
{
260260
let mut buffer = [0; 100];
261-
std::io::stdin().read_exact(&mut buffer)?; // $ MISSING: Alert[rust/summary/taint-sources]
261+
std::io::stdin().read_exact(&mut buffer)?; // $ Alert[rust/summary/taint-sources]
262262
sink(&buffer); // $ MISSING: hasTaintFlow
263263
}
264264

265-
for byte in std::io::stdin().bytes() { // $ MISSING: Alert[rust/summary/taint-sources]
265+
for byte in std::io::stdin().bytes() { // $ Alert[rust/summary/taint-sources]
266266
sink(byte); // $ MISSING: hasTaintFlow
267267
}
268268

@@ -301,54 +301,54 @@ fn test_io_fs() -> std::io::Result<()> {
301301
// --- BufReader ---
302302

303303
{
304-
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ MISSING: Alert[rust/summary/taint-sources]
304+
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ Alert[rust/summary/taint-sources]
305305
let data = reader.fill_buf()?;
306306
sink(&data); // $ MISSING: hasTaintFlow
307307
}
308308

309309
{
310-
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ MISSING: Alert[rust/summary/taint-sources]
310+
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ Alert[rust/summary/taint-sources]
311311
let data = reader.buffer();
312312
sink(&data); // $ MISSING: hasTaintFlow
313313
}
314314

315315
{
316316
let mut buffer = String::new();
317-
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ MISSING: Alert[rust/summary/taint-sources]
317+
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ Alert[rust/summary/taint-sources]
318318
reader.read_line(&mut buffer)?;
319319
sink(&buffer); // $ MISSING: hasTaintFlow
320320
}
321321

322322
{
323323
let mut buffer = Vec::<u8>::new();
324-
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ MISSING: Alert[rust/summary/taint-sources]
324+
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ Alert[rust/summary/taint-sources]
325325
reader.read_until(b',', &mut buffer)?;
326326
sink(&buffer); // $ MISSING: hasTaintFlow
327327
}
328328

329329
{
330330
let mut buffer = Vec::<u8>::new();
331-
let mut reader_split = std::io::BufReader::new(std::io::stdin()).split(b','); // $ MISSING: Alert[rust/summary/taint-sources]
331+
let mut reader_split = std::io::BufReader::new(std::io::stdin()).split(b','); // $ Alert[rust/summary/taint-sources]
332332
while let Some(chunk) = reader_split.next() {
333333
sink(chunk.unwrap()); // $ MISSING: hasTaintFlow
334334
}
335335
}
336336

337337
{
338-
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ MISSING: Alert[rust/summary/taint-sources]
338+
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ Alert[rust/summary/taint-sources]
339339
for line in reader.lines() {
340340
sink(line); // $ MISSING: Alert[rust/summary/taint-sources]
341341
}
342342
}
343343

344344
{
345-
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ MISSING: Alert[rust/summary/taint-sources]
345+
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ Alert[rust/summary/taint-sources]
346346
let line = reader.lines().nth(1).unwrap();
347347
sink(line.unwrap().clone()); // $ MISSING: hasTaintFlow
348348
}
349349

350350
{
351-
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ MISSING: Alert[rust/summary/taint-sources]
351+
let mut reader = std::io::BufReader::new(std::io::stdin()); // $ Alert[rust/summary/taint-sources]
352352
let lines: Vec<_> = reader.lines().collect();
353353
sink(lines[1].as_ref().unwrap().clone()); // $ MISSING: hasTaintFlow
354354
}
@@ -374,7 +374,7 @@ fn test_io_fs() -> std::io::Result<()> {
374374

375375
{
376376
let mut buffer = String::new();
377-
let _bytes = std::io::stdin().lock().read_to_string(&mut buffer)?; // $ MISSING: Alert[rust/summary/taint-sources]
377+
let _bytes = std::io::stdin().lock().read_to_string(&mut buffer)?; // $ Alert[rust/summary/taint-sources]
378378
sink(&buffer); // $ MISSING: hasTaintFlow
379379
}
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