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CVE-2015-7501 is an unsafe Java deserialization vulnerability in Apache Commons Collections, commonly associated with InvokerTransformer gadget chains. An application that deserializes attacker-controlled Java objects while vulnerable Commons Collections classes are available can invoke a specially constructed chain of classes and execute attacker-supplied commands.
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This repository is a comprehensive Java deserialization exploitation lab, containing multiple proof-of-concept (PoC) exploits and a vulnerable HTTP server for testing. The code samples demonstrate how to craft malicious serialized Java objects (both binary and XML) that exploit gadget chains in Apache Commons Collections (<= 3.2.1) and Java's own classes to achieve arbitrary code execution upon deserialization. Key files include: - `VulnerableHTTPServer.java`: A test server that accepts serialized objects via HTTP POST, cookies, or XML, and deserializes them, simulating real-world vulnerable applications. - `ExampleCommonsCollections1.java`, `ExampleTransformersWithLazyMap.java`, `ReverseShellCommonsCollectionsHashMap.java`, and `reverseShellMultiplatformCommonsCollections.xml`: These files generate payloads that, when deserialized, execute arbitrary commands or establish a reverse shell by loading a remote class from an attacker-controlled server. - `DnsWithCommonsCollections.java`: Generates a payload that triggers an HTTP/DNS request to an attacker-controlled domain, useful for blind exploitation validation. - `ExploitGadgetExample1.java`, `ForgottenClass.java`, and `SomeInvocationHandler.java`: Demonstrate custom gadget chains and the use of Java reflection and proxies to hijack execution flow during deserialization. - `TestSerialize.java` and `TestDeserialize.java`: Simple serialization/deserialization demos. The repository targets Java applications that deserialize untrusted data, especially those with vulnerable versions of Apache Commons Collections in the classpath. It includes PoCs for CVE-2017-7504 and CVE-2017-12149 (affecting JBoss products), and demonstrates both local and remote (network) attack vectors. The payloads can be delivered via HTTP POST, cookies, or XML, and can result in arbitrary command execution or reverse shells. Several endpoints and file paths are fingerprintable, including remote JAR URLs and files created on the target system as a result of exploitation.
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An insecure deserialization vulnerability affecting Red Hat JBoss.
Vulnerability referenced by HPE as affecting HPE Telco Universal SLA Management <=4.6; specific technical details not provided in the bulletin excerpt.
A code-execution vulnerability involving InvokerTransformer during deserialization in Apache Commons Collections.
A deserialization code-execution vulnerability involving Apache Commons Collections InvokerTransformer.
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Cross-references every affected SKU, including bundled OEM variants.
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