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address review feedback on MaskingReplacer

This commit is contained in:
Erik Krogh Kristensen 2019-11-12 11:30:17 +01:00
Родитель 4ec2070e48
Коммит 8ff515a58d
3 изменённых файлов: 36 добавлений и 16 удалений
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22
javascript/ql/src/semmle/javascript/security/dataflow/CleartextLoggingCustomizations.qll
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@ -34,19 +34,19 @@ module CleartextLogging {
abstract class Barrier extends DataFlow::Node { }
/**
* A call to `.replace()` that seems to mask
* A call to `.replace()` that seems to mask sensitive information.
*/
class MaskingReplacer extends Barrier, DataFlow::MethodCallNode {
MaskingReplacer() {
this.getCalleeName() = "replace" and
exists(RegExpLiteral reg|
reg = this.getArgument(0).getALocalSource().asExpr() and
reg.getFlags().regexpMatch("(?i).*g.*") and
reg.getRoot().getRawValue().regexpMatch(".*\\..*")
)
and
this.getArgument(1).asExpr() instanceof StringLiteral
}
MaskingReplacer() {
this.getCalleeName() = "replace" and
exists(RegExpLiteral reg |
reg = this.getArgument(0).getALocalSource().asExpr() and
reg.isGlobal() and
any(RegExpDot term).getLiteral() = reg
)
and
exists(this.getArgument(1).getStringValue())
}
}
/**

22
javascript/ql/test/query-tests/Security/CWE-312/CleartextLogging.expected
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@ -120,10 +120,14 @@ nodes
| passwords.js:156:17:156:27 | process.env |
| passwords.js:156:17:156:27 | process.env |
| passwords.js:156:17:156:27 | process.env |
| passwords.js:158:17:158:27 | process.env |
| passwords.js:158:17:158:27 | process.env |
| passwords.js:158:17:158:42 | process ... "bar"] |
| passwords.js:158:17:158:42 | process ... "bar"] |
| passwords.js:163:14:163:21 | password |
| passwords.js:163:14:163:21 | password |
| passwords.js:163:14:163:41 | passwor ... g, "*") |
| passwords.js:163:14:163:41 | passwor ... g, "*") |
| passwords.js:164:14:164:21 | password |
| passwords.js:164:14:164:21 | password |
| passwords.js:164:14:164:42 | passwor ... g, "*") |
| passwords.js:164:14:164:42 | passwor ... g, "*") |
| passwords_in_browser1.js:2:13:2:20 | password |
| passwords_in_browser1.js:2:13:2:20 | password |
| passwords_in_browser1.js:2:13:2:20 | password |
@ -260,6 +264,14 @@ edges
| passwords.js:154:21:154:28 | procdesc | passwords.js:142:26:142:34 | arguments |
| passwords.js:154:21:154:28 | procdesc | passwords.js:142:26:142:34 | arguments |
| passwords.js:156:17:156:27 | process.env | passwords.js:156:17:156:27 | process.env |
| passwords.js:163:14:163:21 | password | passwords.js:163:14:163:41 | passwor ... g, "*") |
| passwords.js:163:14:163:21 | password | passwords.js:163:14:163:41 | passwor ... g, "*") |
| passwords.js:163:14:163:21 | password | passwords.js:163:14:163:41 | passwor ... g, "*") |
| passwords.js:163:14:163:21 | password | passwords.js:163:14:163:41 | passwor ... g, "*") |
| passwords.js:164:14:164:21 | password | passwords.js:164:14:164:42 | passwor ... g, "*") |
| passwords.js:164:14:164:21 | password | passwords.js:164:14:164:42 | passwor ... g, "*") |
| passwords.js:164:14:164:21 | password | passwords.js:164:14:164:42 | passwor ... g, "*") |
| passwords.js:164:14:164:21 | password | passwords.js:164:14:164:42 | passwor ... g, "*") |
| passwords_in_browser1.js:2:13:2:20 | password | passwords_in_browser1.js:2:13:2:20 | password |
| passwords_in_browser2.js:2:13:2:20 | password | passwords_in_browser2.js:2:13:2:20 | password |
| passwords_in_server_1.js:6:13:6:20 | password | passwords_in_server_1.js:6:13:6:20 | password |
@ -301,6 +313,8 @@ edges
| passwords.js:142:26:142:34 | arguments | passwords.js:150:21:150:31 | process.env | passwords.js:142:26:142:34 | arguments | Sensitive data returned by $@ is logged here. | passwords.js:150:21:150:31 | process.env | process environment |
| passwords.js:142:26:142:34 | arguments | passwords.js:152:33:152:43 | process.env | passwords.js:142:26:142:34 | arguments | Sensitive data returned by $@ is logged here. | passwords.js:152:33:152:43 | process.env | process environment |
| passwords.js:156:17:156:27 | process.env | passwords.js:156:17:156:27 | process.env | passwords.js:156:17:156:27 | process.env | Sensitive data returned by $@ is logged here. | passwords.js:156:17:156:27 | process.env | process environment |
| passwords.js:163:14:163:41 | passwor ... g, "*") | passwords.js:163:14:163:21 | password | passwords.js:163:14:163:41 | passwor ... g, "*") | Sensitive data returned by $@ is logged here. | passwords.js:163:14:163:21 | password | an access to password |
| passwords.js:164:14:164:42 | passwor ... g, "*") | passwords.js:164:14:164:21 | password | passwords.js:164:14:164:42 | passwor ... g, "*") | Sensitive data returned by $@ is logged here. | passwords.js:164:14:164:21 | password | an access to password |
| passwords_in_server_1.js:6:13:6:20 | password | passwords_in_server_1.js:6:13:6:20 | password | passwords_in_server_1.js:6:13:6:20 | password | Sensitive data returned by $@ is logged here. | passwords_in_server_1.js:6:13:6:20 | password | an access to password |
| passwords_in_server_2.js:3:13:3:20 | password | passwords_in_server_2.js:3:13:3:20 | password | passwords_in_server_2.js:3:13:3:20 | password | Sensitive data returned by $@ is logged here. | passwords_in_server_2.js:3:13:3:20 | password | an access to password |
| passwords_in_server_3.js:2:13:2:20 | password | passwords_in_server_3.js:2:13:2:20 | password | passwords_in_server_3.js:2:13:2:20 | password | Sensitive data returned by $@ is logged here. | passwords_in_server_3.js:2:13:2:20 | password | an access to password |

8
javascript/ql/test/query-tests/Security/CWE-312/passwords.js
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@ -156,4 +156,10 @@ var Util = require('util');
console.log(process.env); // NOT OK
console.log(process.env.PATH); // OK.
console.log(process.env["foo" + "bar"]); // OK.
});
});
(function () {
console.log(password.replace(/./g, "*")); // OK!
console.log(password.replace(/\./g, "*")); // NOT OK!
console.log(password.replace(/foo/g, "*")); // NOT OK!
})();