CVE-2020-2555 PoC — Oracle Utilities Framework 代码问题漏洞

Source

https://github.com/Uvemode/CVE-2020-2555

Associated Vulnerability

Title:Oracle Utilities Framework 代码问题漏洞 (CVE-2020-2555)
Description:Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Caching,CacheStore,Invocation). Supported versions that are affected are 3.7.1.0, 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 T3 to compromise Oracle Coherence. Successful attacks of this vulnerability can result in takeover of Oracle Coherence. 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).

Readme

Forked from Y4er

I added some changes so the code can be built into a simple .jar with simple arguments (host, port, command, http/s), to build please replace coherence.jar with the version according to your target.

The .jar present in Releases is built for 12.1.3, as is easy to guess.


Usage:

java -jar 12_1_3.jar -H [Host] -P [Port] -C [Command] -https [optional]

The command is executed with "/bin/bash -c". If another command is needed this can be changed at CVE_2020_2555.java line 87.

# CVE-2020-2555
Weblogic com.tangosol.util.extractor.ReflectionExtractor RCE

com.supeream.CVE_2020_2555

```
/*
 * author:Y4er.com
 *
 * gadget:
 *      BadAttributeValueExpException.readObject()
 *          com.tangosol.util.filter.LimitFilter.toString()
 *              com.tangosol.util.extractor.ChainedExtractor.extract()
 *                  com.tangosol.util.extractor.ReflectionExtractor.extract()
 *                      Method.invoke()
 *                      ...
 *                      Runtime.getRuntime.exec()
 */
 ```

 # Require
 This only works in JDK 8u76 and WITHOUT a security manager, because of `BadAttributeValueExpException` in here:
 https://github.com/JetBrains/jdk8u_jdk/commit/af2361ee2878302012214299036b3a8b4ed36974#diff-f89b1641c408b60efe29ee513b3d22ffR70
 And Please replace `coherence.jar` with your weblogic version, if not, you will get serialVersionUID inconsistent error.

 Only test on Centos jdk8u202 Weblogic 12.2.1.4.

![](https://user-images.githubusercontent.com/40487319/76184916-a6727200-6208-11ea-927a-938009ad54c1.gif)


 # Reference
 1. https://www.thezdi.com/blog/2020/3/5/cve-2020-2555-rce-through-a-deserialization-bug-in-oracles-weblogic-server
 2. https://www.youtube.com/watch?v=VzmZTYbm4Zw
 3. https://github.com/5up3rc/weblogic_cmd/

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