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Merge pull request #3214 from aibaars/base64

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Java: Add org.apache.commons.codec.(De|En)coder to TaintTrackingUtil
This commit is contained in:
Anders Schack-Mulligen
2020-05-06 09:21:18 +02:00
committed by GitHub
parent 63f04afa8d 31e284a707
commit 3b3ca6d41e
14 changed files with 667 additions and 1 deletions
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33
java/ql/test/library-tests/dataflow/local-additional-taint/Test.java Normal file
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import org.apache.commons.codec.Encoder;
import org.apache.commons.codec.Decoder;
import org.apache.commons.codec.BinaryEncoder;
import org.apache.commons.codec.BinaryDecoder;
import org.apache.commons.codec.StringEncoder;
import org.apache.commons.codec.StringDecoder;
class Test {
public static void taintSteps(
Decoder decoder,
Encoder encoder,
StringEncoder stringEncoder,
StringDecoder stringDecoder,
BinaryEncoder binEncoder,
BinaryDecoder binDecoder) throws Exception {
String string1 = "hello";
String string2 = "world";
byte [] bytes1 = new byte[0];
byte [] bytes2 = new byte[0];
Object obj1 = decoder.decode(string2);
Object obj2 = encoder.encode(bytes2);
string1 = stringDecoder.decode(string2);
string1 = stringEncoder.encode(string2);
bytes1 = binEncoder.encode(bytes2);
bytes1 = binDecoder.decode(bytes2);
}
}

6
java/ql/test/library-tests/dataflow/local-additional-taint/localAdditionalTaintStep.expected Normal file
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| Test.java:24:32:24:38 | string2 | Test.java:24:17:24:39 | decode(...) |
| Test.java:25:46:25:51 | bytes2 | Test.java:25:31:25:52 | encode(...) |
| Test.java:27:34:27:40 | string2 | Test.java:27:13:27:41 | decode(...) |
| Test.java:28:34:28:40 | string2 | Test.java:28:13:28:41 | encode(...) |
| Test.java:30:30:30:35 | bytes2 | Test.java:30:12:30:36 | encode(...) |
| Test.java:31:30:31:35 | bytes2 | Test.java:31:12:31:36 | decode(...) |

6
java/ql/test/library-tests/dataflow/local-additional-taint/localAdditionalTaintStep.ql Normal file
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import semmle.code.java.dataflow.DataFlow
import semmle.code.java.dataflow.internal.TaintTrackingUtil
from DataFlow::Node src, DataFlow::Node sink
where localAdditionalTaintStep(src, sink)
select src, sink

1
java/ql/test/library-tests/dataflow/local-additional-taint/options Normal file
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//semmle-extractor-options: --javac-args -cp ${testdir}/../../../stubs/apache-commons-codec-1.14

202
java/ql/test/stubs/apache-commons-codec-1.14/LICENSE.txt Normal file
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37
java/ql/test/stubs/apache-commons-codec-1.14/org/apache/commons/codec/BinaryDecoder.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.codec;
/**
* Defines common decoding methods for byte array decoders.
*
*/
public interface BinaryDecoder extends Decoder {
/**
* Decodes a byte array and returns the results as a byte array.
*
* @param source
* A byte array which has been encoded with the appropriate encoder
* @return a byte array that contains decoded content
* @throws DecoderException
* A decoder exception is thrown if a Decoder encounters a failure condition during the decode process.
*/
byte[] decode(byte[] source) throws DecoderException;
}

37
java/ql/test/stubs/apache-commons-codec-1.14/org/apache/commons/codec/BinaryEncoder.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.codec;
/**
* Defines common encoding methods for byte array encoders.
*
*/
public interface BinaryEncoder extends Encoder {
/**
* Encodes a byte array and return the encoded data as a byte array.
*
* @param source
* Data to be encoded
* @return A byte array containing the encoded data
* @throws EncoderException
* thrown if the Encoder encounters a failure condition during the encoding process.
*/
byte[] encode(byte[] source) throws EncoderException;
}

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java/ql/test/stubs/apache-commons-codec-1.14/org/apache/commons/codec/Decoder.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.codec;
/**
* Provides the highest level of abstraction for Decoders.
* <p>
* This is the sister interface of {@link Encoder}. All Decoders implement this common generic interface.
* Allows a user to pass a generic Object to any Decoder implementation in the codec package.
* <p>
* One of the two interfaces at the center of the codec package.
*
*/
public interface Decoder {
/**
* Decodes an "encoded" Object and returns a "decoded" Object. Note that the implementation of this interface will
* try to cast the Object parameter to the specific type expected by a particular Decoder implementation. If a
* {@link ClassCastException} occurs this decode method will throw a DecoderException.
*
* @param source
* the object to decode
* @return a 'decoded" object
* @throws DecoderException
* a decoder exception can be thrown for any number of reasons. Some good candidates are that the
* parameter passed to this method is null, a param cannot be cast to the appropriate type for a
* specific encoder.
*/
Object decode(Object source) throws DecoderException;
}

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java/ql/test/stubs/apache-commons-codec-1.14/org/apache/commons/codec/DecoderException.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.codec;
/**
* Thrown when there is a failure condition during the decoding process. This exception is thrown when a {@link Decoder}
* encounters a decoding specific exception such as invalid data, or characters outside of the expected range.
*
*/
public class DecoderException extends Exception {
/**
* Declares the Serial Version Uid.
*
* @see <a href="http://c2.com/cgi/wiki?AlwaysDeclareSerialVersionUid">Always Declare Serial Version Uid</a>
*/
private static final long serialVersionUID = 1L;
/**
* Constructs a new exception with {@code null} as its detail message. The cause is not initialized, and may
* subsequently be initialized by a call to {@link #initCause}.
*
* @since 1.4
*/
public DecoderException() {
super();
}
/**
* Constructs a new exception with the specified detail message. The cause is not initialized, and may subsequently
* be initialized by a call to {@link #initCause}.
*
* @param message
* The detail message which is saved for later retrieval by the {@link #getMessage()} method.
*/
public DecoderException(final String message) {
super(message);
}
/**
* Constructs a new exception with the specified detail message and cause.
* <p>
* Note that the detail message associated with {@code cause} is not automatically incorporated into this
* exception's detail message.
*
* @param message
* The detail message which is saved for later retrieval by the {@link #getMessage()} method.
* @param cause
* The cause which is saved for later retrieval by the {@link #getCause()} method. A {@code null}
* value is permitted, and indicates that the cause is nonexistent or unknown.
* @since 1.4
*/
public DecoderException(final String message, final Throwable cause) {
super(message, cause);
}
/**
* Constructs a new exception with the specified cause and a detail message of <code>(cause==null ?
* null : cause.toString())</code> (which typically contains the class and detail message of {@code cause}).
* This constructor is useful for exceptions that are little more than wrappers for other throwables.
*
* @param cause
* The cause which is saved for later retrieval by the {@link #getCause()} method. A {@code null}
* value is permitted, and indicates that the cause is nonexistent or unknown.
* @since 1.4
*/
public DecoderException(final Throwable cause) {
super(cause);
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.codec;
/**
* Provides the highest level of abstraction for Encoders.
* <p>
* This is the sister interface of {@link Decoder}. Every implementation of Encoder provides this
* common generic interface which allows a user to pass a generic Object to any Encoder implementation
* in the codec package.
*
*/
public interface Encoder {
/**
* Encodes an "Object" and returns the encoded content as an Object. The Objects here may just be
* {@code byte[]} or {@code String}s depending on the implementation used.
*
* @param source
* An object to encode
* @return An "encoded" Object
* @throws EncoderException
* An encoder exception is thrown if the encoder experiences a failure condition during the encoding
* process.
*/
Object encode(Object source) throws EncoderException;
}

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java/ql/test/stubs/apache-commons-codec-1.14/org/apache/commons/codec/EncoderException.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.codec;
/**
* Thrown when there is a failure condition during the encoding process. This exception is thrown when an
* {@link Encoder} encounters a encoding specific exception such as invalid data, inability to calculate a checksum,
* characters outside of the expected range.
*
*/
public class EncoderException extends Exception {
/**
* Declares the Serial Version Uid.
*
* @see <a href="http://c2.com/cgi/wiki?AlwaysDeclareSerialVersionUid">Always Declare Serial Version Uid</a>
*/
private static final long serialVersionUID = 1L;
/**
* Constructs a new exception with {@code null} as its detail message. The cause is not initialized, and may
* subsequently be initialized by a call to {@link #initCause}.
*
* @since 1.4
*/
public EncoderException() {
super();
}
/**
* Constructs a new exception with the specified detail message. The cause is not initialized, and may subsequently
* be initialized by a call to {@link #initCause}.
*
* @param message
* a useful message relating to the encoder specific error.
*/
public EncoderException(final String message) {
super(message);
}
/**
* Constructs a new exception with the specified detail message and cause.
*
* <p>
* Note that the detail message associated with {@code cause} is not automatically incorporated into this
* exception's detail message.
* </p>
*
* @param message
* The detail message which is saved for later retrieval by the {@link #getMessage()} method.
* @param cause
* The cause which is saved for later retrieval by the {@link #getCause()} method. A {@code null}
* value is permitted, and indicates that the cause is nonexistent or unknown.
* @since 1.4
*/
public EncoderException(final String message, final Throwable cause) {
super(message, cause);
}
/**
* Constructs a new exception with the specified cause and a detail message of <code>(cause==null ?
* null : cause.toString())</code> (which typically contains the class and detail message of {@code cause}).
* This constructor is useful for exceptions that are little more than wrappers for other throwables.
*
* @param cause
* The cause which is saved for later retrieval by the {@link #getCause()} method. A {@code null}
* value is permitted, and indicates that the cause is nonexistent or unknown.
* @since 1.4
*/
public EncoderException(final Throwable cause) {
super(cause);
}
}

37
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.codec;
/**
* Defines common decoding methods for String decoders.
*
*/
public interface StringDecoder extends Decoder {
/**
* Decodes a String and returns a String.
*
* @param source
* the String to decode
* @return the encoded String
* @throws DecoderException
* thrown if there is an error condition during the Encoding process.
*/
String decode(String source) throws DecoderException;
}

37
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.codec;
/**
* Defines common encoding methods for String encoders.
*
*/
public interface StringEncoder extends Encoder {
/**
* Encodes a String and returns a String.
*
* @param source
* the String to encode
* @return the encoded String
* @throws EncoderException
* thrown if there is an error condition during the encoding process.
*/
String encode(String source) throws EncoderException;
}