CVE-2020-2883 PoC — Oracle Fusion Middleware 安全漏洞

Source

https://github.com/Al1ex/CVE-2020-2883

Associated Vulnerability

Title:Oracle Fusion Middleware 安全漏洞 (CVE-2020-2883)
Description:Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Description

CVE-2020-2883

Readme

# what's this
This project which based weblogic_cmd is a poc for CVE-2020-2883.

# Two Gadget
First:
~~~
ObjectInputStream.readObject()
    PriorityQueue.readObject()
        PriorityQueue.heapify()
            PriorityQueue.siftDown()
                siftDownUsingComparator()
                    com.tangosol.util.comparator.ExtractorComparator.compare()
                        com.tangosol.util.extractor.ChainedExtractor.extract()
                            com.tangosol.util.extractor.ReflectionExtractor().extract()
                                Method.invoke()
    							.......
                            com.tangosol.util.extractor.ReflectionExtractor().extract()
                                Method.invoke()
                                Runtime.exec()                  
~~~
![gadget1](./image/Gadget1.jpg)

Second:
~~~
ObjectInputStream.readObject()
    PriorityQueue.readObject()
        PriorityQueue.heapify()
            PriorityQueue.siftDown()
                siftDownUsingComparator()
                    com.tangosol.util.extractor.AbstractExtractor.compare()
                      com.tangosol.util.extractor.MultiExtractor.extract()
                        com.tangosol.util.extractor.ChainedExtractor.extract()
                            com.tangosol.util.extractor.ChainedExtractor.extract()
                                com.tangosol.util.extractor.ReflectionExtractor().extract()
                                    Method.invoke()
    								.......
                                com.tangosol.util.extractor.ReflectionExtractor().extract()
                                    Method.invoke()
                                    Runtime.exec()                  
~~~
![gadget2](./image/Gadget2.jpg)

File Snapshot

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