When using `auxiliary/gather/enum_dns` and setting `NS` to an internal system, the following crash occurs (which is fixed with this PR):
```
[-] Auxiliary failed: NoMethodError undefined method `ptr' for #<Dnsruby::RR::IN::PTR:0x00007f8b9e9cb450>
```
## BUG
While trying using
`module> auxiliary/scanner/http/wordpress_login_enum`
User validation does not occur correctly in wordpress 5.x
## Verification
- mkdir wordpress
- cd wordpress
- nano docker-compose.yml
- Enter the following into the file
```
version: '3.3'
services:
db:
image: mysql:5.7
volumes:
- db_data:/var/lib/mysql
restart: always
environment:
MYSQL_ROOT_PASSWORD: somewordpress
MYSQL_DATABASE: wordpress
MYSQL_USER: wordpress
MYSQL_PASSWORD: wordpress
wordpress:
depends_on:
- db
image: wordpress:latest
ports:
- "8000:80"
restart: always
environment:
WORDPRESS_DB_HOST: db:3306
WORDPRESS_DB_USER: wordpress
WORDPRESS_DB_PASSWORD: wordpress
WORDPRESS_DB_NAME: wordpress
volumes:
db_data: {}
```
- sudo docker-compose up -d
- Follow the setup instructions at 127.0.0.1:8000 and set up a new user in WordPress.
- Start msfconsole
- creds add user:test
- use auxiliary/scanner/http/wordpress_login_enum
- set RHOSTS 127.0.0.1
- set RPORT 8000
- set DB_ALL_USERS true
- run
## Expected Output
```
msf6 > use auxiliary/scanner/http/wordpress_login_enum
msf6 auxiliary(scanner/http/wordpress_login_enum) > show options
Module options (auxiliary/scanner/http/wordpress_login_enum):
Name Current Setting Required Description
---- --------------- -------- -----------
BLANK_PASSWORDS false no Try blank passwords for all users
BRUTEFORCE true yes Perform brute force authentication
BRUTEFORCE_SPEED 5 yes How fast to bruteforce, from 0 to 5
DB_ALL_CREDS false no Try each user/password couple stored in the current database
DB_ALL_PASS false no Add all passwords in the current database to the list
DB_ALL_USERS false no Add all users in the current database to the list
ENUMERATE_USERNAMES true yes Enumerate usernames
PASSWORD no A specific password to authenticate with
PASS_FILE no File containing passwords, one per line
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RANGE_END 10 no Last user id to enumerate
RANGE_START 1 no First user id to enumerate
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 80 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
STOP_ON_SUCCESS false yes Stop guessing when a credential works for a host
TARGETURI / yes The base path to the wordpress application
THREADS 1 yes The number of concurrent threads (max one per host)
USERNAME no A specific username to authenticate as
USERPASS_FILE no File containing users and passwords separated by space, one pair per line
USER_AS_PASS false no Try the username as the password for all users
USER_FILE no File containing usernames, one per line
VALIDATE_USERS true yes Validate usernames
VERBOSE true yes Whether to print output for all attempts
VHOST no HTTP server virtual host
msf6 auxiliary(scanner/http/wordpress_login_enum) > set RHOSTS 127.0.0.1
RHOSTS => 127.0.0.1
msf6 auxiliary(scanner/http/wordpress_login_enum) > set RPORT 8080
RPORT => 8080
msf6 auxiliary(scanner/http/wordpress_login_enum) > set DB_ALL_USERS true
DB_ALL_USERS => true
msf6 auxiliary(scanner/http/wordpress_login_enum) > run
[-] The connection was refused by the remote host (127.0.0.1:8080).
[-] / does not seem to be WordPress site
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
msf6 auxiliary(scanner/http/wordpress_login_enum) > set RPORT 8000
RPORT => 8000
msf6 auxiliary(scanner/http/wordpress_login_enum) > run
[*] / - WordPress Version 5.6.1 detected
[*] 127.0.0.1:8000 - / - WordPress User-Enumeration - Running User Enumeration
[*] 127.0.0.1:8000 - / - WordPress User-Validation - Running User Validation
[*] / - WordPress User-Validation - Checking Username:'Administrator'
[-] 127.0.0.1:8000 - [1/4] - / - WordPress User-Validation - Invalid Username: 'Administrator'
[*] / - WordPress User-Validation - Checking Username:'administrator'
[-] 127.0.0.1:8000 - [2/4] - / - WordPress User-Validation - Invalid Username: 'administrator'
[*] / - WordPress User-Validation - Checking Username:'test'
[+] / - WordPress User-Validation - Username: 'test' - is VALID
[+] / - WordPress User-Validation - Found 1 valid user
[-] 127.0.0.1:8000 - [4/4] - / - WordPress User-Validation - Invalid Username: 'normal'
[*] 127.0.0.1:8000 - [5/4] - / - WordPress Brute Force - Running Bruteforce
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
msf6 auxiliary(scanner/http/wordpress_login_enum) >
```
## Linked Issue
[https://github.com/rapid7/metasploit-framework/issues/14790#issue-81372544](https://github.com/rapid7/metasploit-framework/issues/14790#issue-813725448,"https://github.com/rapid7/metasploit-framework/issues/14790#issue-813725448")
Please remind me if any issue is found with the fix! ;-)
adfoster-r7