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CVE-2020-14756 is an easily exploitable, unauthenticated remote code execution vulnerability in Oracle Coherence (Oracle Fusion Middleware, Core Components) affecting versions 3.7.1.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0. The issue is reachable over network protocols including T3 and IIOP and is associated with unsafe deserialization of attacker-controlled data, enabling execution of a serialized gadget chain (noted in the content as involving AttributeHolder, TopNAggregator, and MvelExtractor) after a successful T3 handshake.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository provides an exploit for CVE-2020-14756, a remote code execution vulnerability in Oracle WebLogic Server via the T3 protocol. The repository contains three files: a Java file (CVE_2020_14756.java) that constructs a malicious serialized object using classes from the Coherence library and sends it to a target WebLogic server, a Python script (weblogic_t3.py) that can send a crafted payload to a specified host and port using the T3 protocol, and a README.md with usage notes and references. The Java exploit demonstrates how to create a payload that executes arbitrary commands (e.g., launching 'calc'), while the Python script is used to deliver the payload to the target. The exploit targets WebLogic Server 12.2.1.4.0 and requires the T3 protocol to be accessible. The main attack vector is network-based, exploiting deserialization over the T3 protocol. The repository is operational, providing both payload generation and delivery mechanisms.
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A remote code execution vulnerability in Oracle Coherence and WebLogic via T3/IIOP deserialization, allowing attackers to execute arbitrary code on vulnerable servers by sending crafted serialized objects.
A remote code execution vulnerability in Oracle Coherence due to unsafe deserialization via T3/IIOP protocol.
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