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implement a isNaN guard for unsafe-shell-command-construction

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This commit is contained in:
Erik Krogh Kristensen
2022-02-08 11:26:20 +01:00
parent 3206384884
commit d6721ec574
4 changed files with 66 additions and 2 deletions
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23
javascript/ql/test/query-tests/Security/CWE-078/UnsafeShellCommandConstruction.expected
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@@ -254,6 +254,14 @@ nodes
| lib/lib.js:498:45:498:48 | name |
| lib/lib.js:499:31:499:34 | name |
| lib/lib.js:499:31:499:34 | name |
| lib/lib.js:509:39:509:42 | name |
| lib/lib.js:509:39:509:42 | name |
| lib/lib.js:510:22:510:25 | name |
| lib/lib.js:510:22:510:25 | name |
| lib/lib.js:513:23:513:26 | name |
| lib/lib.js:513:23:513:26 | name |
| lib/lib.js:519:23:519:26 | name |
| lib/lib.js:519:23:519:26 | name |
| lib/subLib2/compiled-file.ts:3:26:3:29 | name |
| lib/subLib2/compiled-file.ts:3:26:3:29 | name |
| lib/subLib2/compiled-file.ts:4:25:4:28 | name |
@@ -574,6 +582,18 @@ edges
| lib/lib.js:498:45:498:48 | name | lib/lib.js:499:31:499:34 | name |
| lib/lib.js:498:45:498:48 | name | lib/lib.js:499:31:499:34 | name |
| lib/lib.js:498:45:498:48 | name | lib/lib.js:499:31:499:34 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:510:22:510:25 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:510:22:510:25 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:510:22:510:25 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:510:22:510:25 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:513:23:513:26 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:513:23:513:26 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:513:23:513:26 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:513:23:513:26 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:519:23:519:26 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:519:23:519:26 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:519:23:519:26 | name |
| lib/lib.js:509:39:509:42 | name | lib/lib.js:519:23:519:26 | name |
| lib/subLib2/compiled-file.ts:3:26:3:29 | name | lib/subLib2/compiled-file.ts:4:25:4:28 | name |
| lib/subLib2/compiled-file.ts:3:26:3:29 | name | lib/subLib2/compiled-file.ts:4:25:4:28 | name |
| lib/subLib2/compiled-file.ts:3:26:3:29 | name | lib/subLib2/compiled-file.ts:4:25:4:28 | name |
@@ -666,6 +686,9 @@ edges
| lib/lib.js:478:27:478:46 | config.installedPath | lib/lib.js:477:33:477:38 | config | lib/lib.js:478:27:478:46 | config.installedPath | $@ based on $@ is later used in $@. | lib/lib.js:478:27:478:46 | config.installedPath | Path concatenation | lib/lib.js:477:33:477:38 | config | library input | lib/lib.js:479:12:479:20 | exec(cmd) | shell command |
| lib/lib.js:483:13:483:33 | ' my na ... + name | lib/lib.js:482:40:482:43 | name | lib/lib.js:483:30:483:33 | name | $@ based on $@ is later used in $@. | lib/lib.js:483:13:483:33 | ' my na ... + name | String concatenation | lib/lib.js:482:40:482:43 | name | library input | lib/lib.js:485:2:485:20 | cp.exec(cmd + args) | shell command |
| lib/lib.js:499:19:499:34 | "rm -rf " + name | lib/lib.js:498:45:498:48 | name | lib/lib.js:499:31:499:34 | name | $@ based on $@ is later used in $@. | lib/lib.js:499:19:499:34 | "rm -rf " + name | String concatenation | lib/lib.js:498:45:498:48 | name | library input | lib/lib.js:499:3:499:35 | MyThing ... + name) | shell command |
| lib/lib.js:510:10:510:25 | "rm -rf " + name | lib/lib.js:509:39:509:42 | name | lib/lib.js:510:22:510:25 | name | $@ based on $@ is later used in $@. | lib/lib.js:510:10:510:25 | "rm -rf " + name | String concatenation | lib/lib.js:509:39:509:42 | name | library input | lib/lib.js:510:2:510:26 | cp.exec ... + name) | shell command |
| lib/lib.js:513:11:513:26 | "rm -rf " + name | lib/lib.js:509:39:509:42 | name | lib/lib.js:513:23:513:26 | name | $@ based on $@ is later used in $@. | lib/lib.js:513:11:513:26 | "rm -rf " + name | String concatenation | lib/lib.js:509:39:509:42 | name | library input | lib/lib.js:513:3:513:27 | cp.exec ... + name) | shell command |
| lib/lib.js:519:11:519:26 | "rm -rf " + name | lib/lib.js:509:39:509:42 | name | lib/lib.js:519:23:519:26 | name | $@ based on $@ is later used in $@. | lib/lib.js:519:11:519:26 | "rm -rf " + name | String concatenation | lib/lib.js:509:39:509:42 | name | library input | lib/lib.js:519:3:519:27 | cp.exec ... + name) | shell command |
| lib/subLib2/compiled-file.ts:4:13:4:28 | "rm -rf " + name | lib/subLib2/compiled-file.ts:3:26:3:29 | name | lib/subLib2/compiled-file.ts:4:25:4:28 | name | $@ based on $@ is later used in $@. | lib/subLib2/compiled-file.ts:4:13:4:28 | "rm -rf " + name | String concatenation | lib/subLib2/compiled-file.ts:3:26:3:29 | name | library input | lib/subLib2/compiled-file.ts:4:5:4:29 | cp.exec ... + name) | shell command |
| lib/subLib2/special-file.js:4:10:4:25 | "rm -rf " + name | lib/subLib2/special-file.js:3:28:3:31 | name | lib/subLib2/special-file.js:4:22:4:25 | name | $@ based on $@ is later used in $@. | lib/subLib2/special-file.js:4:10:4:25 | "rm -rf " + name | String concatenation | lib/subLib2/special-file.js:3:28:3:31 | name | library input | lib/subLib2/special-file.js:4:2:4:26 | cp.exec ... + name) | shell command |
| lib/subLib3/my-file.ts:4:10:4:25 | "rm -rf " + name | lib/subLib3/my-file.ts:3:28:3:31 | name | lib/subLib3/my-file.ts:4:22:4:25 | name | $@ based on $@ is later used in $@. | lib/subLib3/my-file.ts:4:10:4:25 | "rm -rf " + name | String concatenation | lib/subLib3/my-file.ts:3:28:3:31 | name | library input | lib/subLib3/my-file.ts:4:2:4:26 | cp.exec ... + name) | shell command |

18
javascript/ql/test/query-tests/Security/CWE-078/lib/lib.js
View File

@@ -504,4 +504,20 @@ module.exports.myCommand = function (myCommand) {
var imp = require('./isImported');
for (var name in imp){
module.exports[name] = imp[name];
}
}
module.exports.sanitizer4 = function (name) {
cp.exec("rm -rf " + name); // NOT OK
if (isNaN(name)) {
cp.exec("rm -rf " + name); // NOT OK
} else {
cp.exec("rm -rf " + name); // OK
}
if (isNaN(parseInt(name))) {
cp.exec("rm -rf " + name); // NOT OK
} else {
cp.exec("rm -rf " + name); // OK
}
}