CVE-2024-52046: Apache MINA: MINA applications using unbounded deserialization may allow RCE
The ObjectSerializationDecoder in Apache MINA uses Java’s native deserialization protocol to process incoming serialized data but lacks the necessary security checks and defenses. This vulnerability allows attackers to exploit the deserialization process by sending specially crafted malicious serialized data, potentially leading to remote code execution (RCE) attacks. This issue affects MINA core versions 2.0.X, 2.1.X and 2.2.X, and will be fixed by the releases 2.0.27, 2.1.10 and 2.2.4.
It's also important to note that an application using MINA core library will only be affected if the IoBuffer#getObject() method is called, and this specific method is potentially called when adding a ProtocolCodecFilter instance using the ObjectSerializationCodecFactory class in the filter chain. If your application is specifically using those classes, you have to upgrade to the latest version of MINA core library.
Upgrading will not be enough: you also need to explicitly allow the classes the decoder will accept in the ObjectSerializationDecoder instance, using one of the three new methods:
1. Accept class names where the supplied ClassNameMatcher matches for deserialization, unless they are otherwise rejected. @param classNameMatcher the matcher to use / public void accept(ClassNameMatcher classNameMatcher)
2. Accept class names that match the supplied pattern for deserialization, unless they are otherwise rejected. @param pattern standard Java regexp / public void accept(Pattern pattern)
3. Accept the wildcard specified classes for deserialization, unless they are otherwise rejected. @param patterns Wildcard file name patterns as defined by {@link org.apache.commons.io.FilenameUtils#wildcardMatch(String, String) FilenameUtils.wildcardMatch} / public void accept(String... patterns)
By default, the decoder will reject all classes that will be present in the incoming data.
Note: The FtpServer, SSHd and Vysper sub-project are not affected by this issue.
Other sources
The ObjectSerializationDecoder in Apache MINA uses Java’s native deserialization protocol to process incoming serialized data but lacks the necessary security checks and defenses. This vulnerability allows attackers to exploit the deserialization process by sending specially crafted malicious serialized data, potentially leading to remote code execution (RCE) attacks.
This issue affects MINA core versions 2.0.X, 2.1.X and 2.2.X, and will be fixed by the releases 2.0.27, 2.1.10 and 2.2.4.
It's also important to note that an application using MINA core library will only be affected if the IoBuffer#getObject() method is called, and this specific method is potentially called when adding a ProtocolCodecFilter instance using the ObjectSerializationCodecFactory class in the filter chain. If your application is specifically using those classes, you have to upgrade to the latest version of MINA core library.
Upgrading will not be enough: you also need to explicitly allow the classes the decoder will accept in the ObjectSerializationDecoder instance, using one of the three new methods:
/
Accept class names where the supplied ClassNameMatcher matches for
deserialization, unless they are otherwise rejected.
@param classNameMatcher the matcher to use
/
public void accept(ClassNameMatcher classNameMatcher)
/
Accept class names that match the supplied pattern for
deserialization, unless they are otherwise rejected.
@param pattern standard Java regexp
/
public void accept(Pattern pattern)
/
Accept the wildcard specified classes for deserialization,
unless they are otherwise rejected.
@param patterns Wildcard file name patterns as defined by
{@link org.apache.commons.io.FilenameUtils#wildcardMatch(String, String) FilenameUtils.wildcardMatch}
/
public void accept(String... patterns)
By default, the decoder will reject all classes that will be present in the incoming data.
Note: The FtpServer, SSHd and Vysper sub-project are not affected by this issue.
— Red Hat
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2024-52046?
CVE-2024-52046 is rated as a critical severity vulnerability due to the potential for remote code execution through insecure deserialization.
How do I fix CVE-2024-52046?
To fix CVE-2024-52046, upgrade to Apache MINA version 2.0.27, 2.1.10, or 2.2.4 or later.
What does CVE-2024-52046 exploit?
CVE-2024-52046 exploits the lack of security checks in the ObjectSerializationDecoder's deserialization process.
Which versions of Apache MINA are affected by CVE-2024-52046?
Apache MINA versions prior to 2.0.27, 2.1.10, and 2.2.4 are affected by CVE-2024-52046.
What are the potential impacts of CVE-2024-52046?
The potential impacts of CVE-2024-52046 include remote code execution and unauthorized access to system resources.