From 0c72a2b9823cf56883d1abb8d2bcc6190487a7da Mon Sep 17 00:00:00 2001 From: Geoffrey White <40627776+geoffw0@users.noreply.github.com> Date: Wed, 24 Jun 2026 16:52:23 +0100 Subject: [PATCH] Add test cases involving string appends. --- .../HardcodedCryptographicValue.expected | 82 +++++++++++++------ .../security/CWE-798/test_heuristic.rs | 8 ++ 2 files changed, 64 insertions(+), 26 deletions(-) diff --git a/rust/ql/test/query-tests/security/CWE-798/HardcodedCryptographicValue.expected b/rust/ql/test/query-tests/security/CWE-798/HardcodedCryptographicValue.expected index f416e2b7b38..3aaa5608e61 100644 --- a/rust/ql/test/query-tests/security/CWE-798/HardcodedCryptographicValue.expected +++ b/rust/ql/test/query-tests/security/CWE-798/HardcodedCryptographicValue.expected @@ -18,37 +18,40 @@ | test_heuristic.rs:69:32:69:32 | 1 | test_heuristic.rs:69:32:69:32 | 1 | test_heuristic.rs:69:22:69:32 | ... + ... | This hard-coded value is used as $@. | test_heuristic.rs:69:22:69:32 | ... + ... | a salt | | test_heuristic.rs:70:34:70:35 | 32 | test_heuristic.rs:70:34:70:35 | 32 | test_heuristic.rs:70:22:70:62 | ... ^ ... | This hard-coded value is used as $@. | test_heuristic.rs:70:22:70:62 | ... ^ ... | a salt | | test_heuristic.rs:70:52:70:61 | 0xFFFFFFFF | test_heuristic.rs:70:52:70:61 | 0xFFFFFFFF | test_heuristic.rs:70:22:70:62 | ... ^ ... | This hard-coded value is used as $@. | test_heuristic.rs:70:22:70:62 | ... ^ ... | a salt | +| test_heuristic.rs:72:20:72:24 | "foo" | test_heuristic.rs:72:20:72:24 | "foo" | test_heuristic.rs:74:28:74:32 | &key1 | This hard-coded value is used as $@. | test_heuristic.rs:74:28:74:32 | &key1 | a password | +| test_heuristic.rs:73:13:73:17 | "bar" | test_heuristic.rs:73:13:73:17 | "bar" | test_heuristic.rs:74:28:74:32 | &key1 | This hard-coded value is used as $@. | test_heuristic.rs:74:28:74:32 | &key1 | a password | +| test_heuristic.rs:76:20:76:24 | "foo" | test_heuristic.rs:76:20:76:24 | "foo" | test_heuristic.rs:78:28:78:32 | &key2 | This hard-coded value is used as $@. | test_heuristic.rs:78:28:78:32 | &key2 | a password | edges | test_cipher.rs:18:9:18:14 | const1 [&ref] | test_cipher.rs:19:73:19:78 | const1 [&ref] | provenance | | | test_cipher.rs:18:28:18:36 | &... [&ref] | test_cipher.rs:18:9:18:14 | const1 [&ref] | provenance | | | test_cipher.rs:18:29:18:36 | [0u8; 16] | test_cipher.rs:18:28:18:36 | &... [&ref] | provenance | | | test_cipher.rs:19:49:19:79 | ...::from_slice(...) [&ref] | test_cipher.rs:19:30:19:47 | ...::new | provenance | MaD:3 Sink:MaD:3 | -| test_cipher.rs:19:73:19:78 | const1 [&ref] | test_cipher.rs:19:49:19:79 | ...::from_slice(...) [&ref] | provenance | MaD:17 | +| test_cipher.rs:19:73:19:78 | const1 [&ref] | test_cipher.rs:19:49:19:79 | ...::from_slice(...) [&ref] | provenance | MaD:20 | | test_cipher.rs:25:9:25:14 | const4 [&ref] | test_cipher.rs:26:66:26:71 | const4 [&ref] | provenance | | | test_cipher.rs:25:28:25:36 | &... [&ref] | test_cipher.rs:25:9:25:14 | const4 [&ref] | provenance | | | test_cipher.rs:25:29:25:36 | [0u8; 16] | test_cipher.rs:25:28:25:36 | &... [&ref] | provenance | | | test_cipher.rs:26:42:26:72 | ...::from_slice(...) [&ref] | test_cipher.rs:26:30:26:40 | ...::new | provenance | MaD:4 Sink:MaD:4 | -| test_cipher.rs:26:66:26:71 | const4 [&ref] | test_cipher.rs:26:42:26:72 | ...::from_slice(...) [&ref] | provenance | MaD:17 | +| test_cipher.rs:26:66:26:71 | const4 [&ref] | test_cipher.rs:26:42:26:72 | ...::from_slice(...) [&ref] | provenance | MaD:20 | | test_cipher.rs:29:9:29:14 | const5 [&ref] | test_cipher.rs:30:95:30:100 | const5 [&ref] | provenance | | | test_cipher.rs:29:28:29:36 | &... [&ref] | test_cipher.rs:29:9:29:14 | const5 [&ref] | provenance | | | test_cipher.rs:29:29:29:36 | [0u8; 16] | test_cipher.rs:29:28:29:36 | &... [&ref] | provenance | | | test_cipher.rs:30:72:30:101 | ...::from_slice(...) [&ref] | test_cipher.rs:30:30:30:40 | ...::new | provenance | MaD:5 Sink:MaD:5 | -| test_cipher.rs:30:95:30:100 | const5 [&ref] | test_cipher.rs:30:72:30:101 | ...::from_slice(...) [&ref] | provenance | MaD:17 | +| test_cipher.rs:30:95:30:100 | const5 [&ref] | test_cipher.rs:30:72:30:101 | ...::from_slice(...) [&ref] | provenance | MaD:20 | | test_cipher.rs:37:9:37:14 | const7 | test_cipher.rs:38:74:38:79 | const7 | provenance | | | test_cipher.rs:37:27:37:74 | [...] | test_cipher.rs:37:9:37:14 | const7 | provenance | | | test_cipher.rs:38:49:38:80 | ...::from_slice(...) [&ref] | test_cipher.rs:38:30:38:47 | ...::new | provenance | MaD:3 Sink:MaD:3 | -| test_cipher.rs:38:73:38:79 | &const7 [&ref] | test_cipher.rs:38:49:38:80 | ...::from_slice(...) [&ref] | provenance | MaD:17 | +| test_cipher.rs:38:73:38:79 | &const7 [&ref] | test_cipher.rs:38:49:38:80 | ...::from_slice(...) [&ref] | provenance | MaD:20 | | test_cipher.rs:38:74:38:79 | const7 | test_cipher.rs:38:73:38:79 | &const7 [&ref] | provenance | | | test_cipher.rs:41:9:41:14 | const8 [&ref] | test_cipher.rs:42:73:42:78 | const8 [&ref] | provenance | | | test_cipher.rs:41:28:41:76 | &... [&ref] | test_cipher.rs:41:9:41:14 | const8 [&ref] | provenance | | | test_cipher.rs:41:29:41:76 | [...] | test_cipher.rs:41:28:41:76 | &... [&ref] | provenance | | | test_cipher.rs:42:49:42:79 | ...::from_slice(...) [&ref] | test_cipher.rs:42:30:42:47 | ...::new | provenance | MaD:3 Sink:MaD:3 | -| test_cipher.rs:42:73:42:78 | const8 [&ref] | test_cipher.rs:42:49:42:79 | ...::from_slice(...) [&ref] | provenance | MaD:17 | +| test_cipher.rs:42:73:42:78 | const8 [&ref] | test_cipher.rs:42:49:42:79 | ...::from_slice(...) [&ref] | provenance | MaD:20 | | test_cipher.rs:50:9:50:15 | const10 [element] | test_cipher.rs:51:75:51:81 | const10 [element] | provenance | | | test_cipher.rs:50:37:50:52 | ...::zeroed | test_cipher.rs:50:37:50:54 | ...::zeroed(...) [element] | provenance | Src:MaD:7 | | test_cipher.rs:50:37:50:54 | ...::zeroed(...) [element] | test_cipher.rs:50:9:50:15 | const10 [element] | provenance | | | test_cipher.rs:51:50:51:82 | ...::from_slice(...) [&ref, element] | test_cipher.rs:51:31:51:48 | ...::new | provenance | MaD:3 Sink:MaD:3 Sink:MaD:3 | -| test_cipher.rs:51:74:51:81 | &const10 [&ref, element] | test_cipher.rs:51:50:51:82 | ...::from_slice(...) [&ref, element] | provenance | MaD:17 | +| test_cipher.rs:51:74:51:81 | &const10 [&ref, element] | test_cipher.rs:51:50:51:82 | ...::from_slice(...) [&ref, element] | provenance | MaD:20 | | test_cipher.rs:51:75:51:81 | const10 [element] | test_cipher.rs:51:74:51:81 | &const10 [&ref, element] | provenance | | | test_cipher.rs:73:9:73:14 | const2 [&ref] | test_cipher.rs:74:46:74:51 | const2 [&ref] | provenance | | | test_cipher.rs:73:18:73:26 | &... [&ref] | test_cipher.rs:73:9:73:14 | const2 [&ref] | provenance | | @@ -64,14 +67,14 @@ edges | test_cookie.rs:22:27:22:32 | array2 | test_cookie.rs:22:26:22:32 | &array2 [&ref] | provenance | | | test_cookie.rs:38:9:38:14 | array2 | test_cookie.rs:42:34:42:39 | array2 | provenance | | | test_cookie.rs:38:18:38:37 | ...::from(...) | test_cookie.rs:38:9:38:14 | array2 | provenance | | -| test_cookie.rs:38:28:38:36 | [0u8; 64] | test_cookie.rs:38:18:38:37 | ...::from(...) | provenance | MaD:12 | -| test_cookie.rs:38:28:38:36 | [0u8; 64] | test_cookie.rs:38:18:38:37 | ...::from(...) | provenance | MaD:13 | -| test_cookie.rs:38:28:38:36 | [0u8; 64] | test_cookie.rs:38:18:38:37 | ...::from(...) | provenance | MaD:14 | | test_cookie.rs:38:28:38:36 | [0u8; 64] | test_cookie.rs:38:18:38:37 | ...::from(...) | provenance | MaD:15 | | test_cookie.rs:38:28:38:36 | [0u8; 64] | test_cookie.rs:38:18:38:37 | ...::from(...) | provenance | MaD:16 | +| test_cookie.rs:38:28:38:36 | [0u8; 64] | test_cookie.rs:38:18:38:37 | ...::from(...) | provenance | MaD:17 | +| test_cookie.rs:38:28:38:36 | [0u8; 64] | test_cookie.rs:38:18:38:37 | ...::from(...) | provenance | MaD:18 | +| test_cookie.rs:38:28:38:36 | [0u8; 64] | test_cookie.rs:38:18:38:37 | ...::from(...) | provenance | MaD:19 | | test_cookie.rs:42:34:42:39 | array2 | test_cookie.rs:42:14:42:32 | ...::from | provenance | MaD:2 Sink:MaD:2 | | test_cookie.rs:49:9:49:14 | array3 [element] | test_cookie.rs:53:34:53:39 | array3 [element] | provenance | | -| test_cookie.rs:49:23:49:25 | 0u8 | test_cookie.rs:49:23:49:29 | ...::from_elem(...) [element] | provenance | MaD:18 | +| test_cookie.rs:49:23:49:25 | 0u8 | test_cookie.rs:49:23:49:29 | ...::from_elem(...) [element] | provenance | MaD:21 | | test_cookie.rs:49:23:49:29 | ...::from_elem(...) [element] | test_cookie.rs:49:9:49:14 | array3 [element] | provenance | | | test_cookie.rs:53:34:53:39 | array3 [element] | test_cookie.rs:53:14:53:32 | ...::from | provenance | MaD:2 Sink:MaD:2 | | test_heuristic.rs:44:9:44:16 | const_iv [&ref] | test_heuristic.rs:45:41:45:48 | const_iv | provenance | | @@ -79,11 +82,22 @@ edges | test_heuristic.rs:44:31:44:38 | [0u8; 16] | test_heuristic.rs:44:30:44:38 | &... [&ref] | provenance | | | test_heuristic.rs:64:20:64:27 | [0u8; 16] | test_heuristic.rs:64:19:64:27 | &... | provenance | | | test_heuristic.rs:65:31:65:38 | [0u8; 16] | test_heuristic.rs:65:30:65:38 | &... | provenance | | -| test_heuristic.rs:69:32:69:32 | 1 | test_heuristic.rs:69:22:69:32 | ... + ... | provenance | MaD:8 | -| test_heuristic.rs:70:23:70:35 | ... << ... | test_heuristic.rs:70:22:70:62 | ... ^ ... | provenance | MaD:10 | -| test_heuristic.rs:70:34:70:35 | 32 | test_heuristic.rs:70:23:70:35 | ... << ... | provenance | MaD:11 | -| test_heuristic.rs:70:41:70:61 | ... & ... | test_heuristic.rs:70:22:70:62 | ... ^ ... | provenance | MaD:10 | -| test_heuristic.rs:70:52:70:61 | 0xFFFFFFFF | test_heuristic.rs:70:41:70:61 | ... & ... | provenance | MaD:9 | +| test_heuristic.rs:69:32:69:32 | 1 | test_heuristic.rs:69:22:69:32 | ... + ... | provenance | MaD:9 | +| test_heuristic.rs:70:23:70:35 | ... << ... | test_heuristic.rs:70:22:70:62 | ... ^ ... | provenance | MaD:13 | +| test_heuristic.rs:70:34:70:35 | 32 | test_heuristic.rs:70:23:70:35 | ... << ... | provenance | MaD:14 | +| test_heuristic.rs:70:41:70:61 | ... & ... | test_heuristic.rs:70:22:70:62 | ... ^ ... | provenance | MaD:13 | +| test_heuristic.rs:70:52:70:61 | 0xFFFFFFFF | test_heuristic.rs:70:41:70:61 | ... & ... | provenance | MaD:12 | +| test_heuristic.rs:72:9:72:16 | mut key1 | test_heuristic.rs:73:5:73:8 | key1 | provenance | | +| test_heuristic.rs:72:20:72:24 | "foo" | test_heuristic.rs:72:20:72:36 | "foo".to_string() | provenance | MaD:8 | +| test_heuristic.rs:72:20:72:36 | "foo".to_string() | test_heuristic.rs:72:9:72:16 | mut key1 | provenance | | +| test_heuristic.rs:73:5:73:8 | key1 | test_heuristic.rs:74:29:74:32 | key1 | provenance | MaD:11 | +| test_heuristic.rs:73:13:73:17 | "bar" | test_heuristic.rs:74:29:74:32 | key1 | provenance | MaD:10 | +| test_heuristic.rs:74:29:74:32 | key1 | test_heuristic.rs:74:28:74:32 | &key1 | provenance | | +| test_heuristic.rs:76:9:76:16 | mut key2 | test_heuristic.rs:77:5:77:8 | key2 | provenance | | +| test_heuristic.rs:76:20:76:24 | "foo" | test_heuristic.rs:76:20:76:36 | "foo".to_string() | provenance | MaD:8 | +| test_heuristic.rs:76:20:76:36 | "foo".to_string() | test_heuristic.rs:76:9:76:16 | mut key2 | provenance | | +| test_heuristic.rs:77:5:77:8 | key2 | test_heuristic.rs:78:29:78:32 | key2 | provenance | MaD:11 | +| test_heuristic.rs:78:29:78:32 | key2 | test_heuristic.rs:78:28:78:32 | &key2 | provenance | | models | 1 | Sink: <_ as crypto_common::KeyInit>::new_from_slice; Argument[0]; credentials-key | | 2 | Sink: ::from; Argument[0]; credentials-key | @@ -92,17 +106,20 @@ models | 5 | Sink: ::new; Argument[1]; credentials-iv | | 6 | Sink: ::from; Argument[0].Reference; credentials-key | | 7 | Source: core::mem::zeroed; ReturnValue.Element; constant-source | -| 8 | Summary: <_ as core::ops::arith::Add>::add; Argument[self,0]; ReturnValue; taint | -| 9 | Summary: <_ as core::ops::bit::BitAnd>::bitand; Argument[self,0]; ReturnValue; taint | -| 10 | Summary: <_ as core::ops::bit::BitXor>::bitxor; Argument[self,0]; ReturnValue; taint | -| 11 | Summary: <_ as core::ops::bit::Shl>::shl; Argument[self,0]; ReturnValue; taint | -| 12 | Summary: ::from; Argument[0].Field[alloc::borrow::Cow::Owned(0)]; ReturnValue; value | -| 13 | Summary: ::from; Argument[0].Field[alloc::bstr::ByteString(0)]; ReturnValue; value | -| 14 | Summary: ::from; Argument[0].Field[alloc::collections::binary_heap::BinaryHeap::data]; ReturnValue; value | -| 15 | Summary: ::from; Argument[0].Field[alloc::string::String::vec]; ReturnValue; value | -| 16 | Summary: ::from; Argument[0]; ReturnValue; taint | -| 17 | Summary: ::from_slice; Argument[0].Reference; ReturnValue.Reference; value | -| 18 | Summary: alloc::vec::from_elem; Argument[0]; ReturnValue.Element; value | +| 8 | Summary: <_ as alloc::string::ToString>::to_string; Argument[self].Reference; ReturnValue; taint | +| 9 | Summary: <_ as core::ops::arith::Add>::add; Argument[self,0]; ReturnValue; taint | +| 10 | Summary: <_ as core::ops::arith::AddAssign>::add_assign; Argument[0]; Argument[self].Reference; taint | +| 11 | Summary: <_ as core::ops::arith::AddAssign>::add_assign; Argument[self].Reference; Argument[self].Reference; taint | +| 12 | Summary: <_ as core::ops::bit::BitAnd>::bitand; Argument[self,0]; ReturnValue; taint | +| 13 | Summary: <_ as core::ops::bit::BitXor>::bitxor; Argument[self,0]; ReturnValue; taint | +| 14 | Summary: <_ as core::ops::bit::Shl>::shl; Argument[self,0]; ReturnValue; taint | +| 15 | Summary: ::from; Argument[0].Field[alloc::borrow::Cow::Owned(0)]; ReturnValue; value | +| 16 | Summary: ::from; Argument[0].Field[alloc::bstr::ByteString(0)]; ReturnValue; value | +| 17 | Summary: ::from; Argument[0].Field[alloc::collections::binary_heap::BinaryHeap::data]; ReturnValue; value | +| 18 | Summary: ::from; Argument[0].Field[alloc::string::String::vec]; ReturnValue; value | +| 19 | Summary: ::from; Argument[0]; ReturnValue; taint | +| 20 | Summary: ::from_slice; Argument[0].Reference; ReturnValue.Reference; value | +| 21 | Summary: alloc::vec::from_elem; Argument[0]; ReturnValue.Element; value | nodes | test_cipher.rs:18:9:18:14 | const1 [&ref] | semmle.label | const1 [&ref] | | test_cipher.rs:18:28:18:36 | &... [&ref] | semmle.label | &... [&ref] | @@ -183,4 +200,17 @@ nodes | test_heuristic.rs:70:34:70:35 | 32 | semmle.label | 32 | | test_heuristic.rs:70:41:70:61 | ... & ... | semmle.label | ... & ... | | test_heuristic.rs:70:52:70:61 | 0xFFFFFFFF | semmle.label | 0xFFFFFFFF | +| test_heuristic.rs:72:9:72:16 | mut key1 | semmle.label | mut key1 | +| test_heuristic.rs:72:20:72:24 | "foo" | semmle.label | "foo" | +| test_heuristic.rs:72:20:72:36 | "foo".to_string() | semmle.label | "foo".to_string() | +| test_heuristic.rs:73:5:73:8 | key1 | semmle.label | key1 | +| test_heuristic.rs:73:13:73:17 | "bar" | semmle.label | "bar" | +| test_heuristic.rs:74:28:74:32 | &key1 | semmle.label | &key1 | +| test_heuristic.rs:74:29:74:32 | key1 | semmle.label | key1 | +| test_heuristic.rs:76:9:76:16 | mut key2 | semmle.label | mut key2 | +| test_heuristic.rs:76:20:76:24 | "foo" | semmle.label | "foo" | +| test_heuristic.rs:76:20:76:36 | "foo".to_string() | semmle.label | "foo".to_string() | +| test_heuristic.rs:77:5:77:8 | key2 | semmle.label | key2 | +| test_heuristic.rs:78:28:78:32 | &key2 | semmle.label | &key2 | +| test_heuristic.rs:78:29:78:32 | key2 | semmle.label | key2 | subpaths diff --git a/rust/ql/test/query-tests/security/CWE-798/test_heuristic.rs b/rust/ql/test/query-tests/security/CWE-798/test_heuristic.rs index f8f16a16d12..5e0c4606b0e 100644 --- a/rust/ql/test/query-tests/security/CWE-798/test_heuristic.rs +++ b/rust/ql/test/query-tests/security/CWE-798/test_heuristic.rs @@ -68,4 +68,12 @@ fn test(var_string: &str, var_data: &[u8;16], var_u64: u64) { mc2.set_salt_u64(var_u64); mc2.set_salt_u64(var_u64 + 1); // $ SPURIOUS: Alert[rust/hard-coded-cryptographic-value] mc2.set_salt_u64((var_u64 << 32) ^ (var_u64 & 0xFFFFFFFF)); // $ SPURIOUS: Alert[rust/hard-coded-cryptographic-value] + + let mut key1 = "foo".to_string(); // $ Alert[rust/hard-coded-cryptographic-value] + key1 += "bar"; // $ Alert[rust/hard-coded-cryptographic-value] + let _ = MyCryptor::new(&key1); // $ Sink + + let mut key2 = "foo".to_string(); // $ SPURIOUS: Alert[rust/hard-coded-cryptographic-value] + key2 += var_string; + let _ = MyCryptor::new(&key2); // $ Sink }