An overview of network penetration testing
1、 an SQLi vulnerability will allow you to do the following
- query the database using select statement forezample users table. you might get the password or usersname
- Bypass the login page executing successfuly query results
- Execute system commands in the database in oreder compromise the web server
- Execute inserts.delete commands to manipulate the records in the database
2、Command Injection
we can append other commands after the variable and the application will be to execute it for us , my goal is to make the backend execute someting like this [nslookup [domain name variable ] && [other command ]
3、OWASP top 10
Injection-----> when a attacker can inject and execute a custom command in the backend because of missing sanitization,besides it ,command Injection are more like LDAP、XPath、NoSQLo XML Parsers、STMTP Header
Broken Authentication ------> a hacker finds the user's idntity, credentials bouth name and password or web session
Sesitive Data 、 XML External Entities \ Broken Access Control \ Security Misconfig \Cross-site Scripting \ Insecure Deserialization \ Using Components with know vulnerability\ Insufficient logging
4、邮件信息收集
theharverster -d [目标网络域名地址] -l [邮件地址数量] -b [使用的搜索的公共知识库] eg : theharvester -d yalong.cn -l 20 -b baidu
5、 use Whois search DNS and ip register name and phone number and email
step one we can use the Whois.net the url: http:www.whois.net or another website is NetCraft the url :https://www.netcraft.com/
step two: use the command whois ,the screenshout as follow
another wegit tools is host it can translate ip to hostname
nslookup id find DNS
6、Reconnaissance or information gathering
a pen tester gather information an attacker's perspective ,anything that is useful is necessary to be collected:
- network Digrams、 application and their version、security defences such IDS IPS
- IP address baidu & Social or perfessional networking websites
- Domain names \sites\ Monster.com 、 IP Registries 、DNS registrars \
- Device name the company websites
7、nslookup is a windows tool to find the ip address associated with the given domain name
8、Scanning to finding live address
ICMP scanning use command Nmap -sP [ip range] 、 SYN scanning Commands Nmap -sS -P0 [ip range] 、all port scanning commamds Nmap -sS -p1=65535 -P0 -max-rtt-timeout<time> [iprange]
Specific Prot scanning we know the ususlly port 80` 443 wecan use command Nmap -sS -p80,443 -P0 [ip range]
9、OS ans service FingerPrintering
OS detecting is to be done find out the system ,by which know vulnerabilities can be exploited .we can use the commands Namp -O [ip range ] or use Namp -sS -sV -O -P0[ip range] of cose can use the comand to find all port Nmap -sS -sV -O -P0 -p1-65535 -max-rrt-timeout<time> [ip range]
10、Vulnerability Scanning
Nmap has the vulnerability scan switch ,we can run the nmap vulnerability scan the command ; nmap -sS --sV -P0 -p1 -65535 -A --max-rate 500 --reason iL<inputfile.txt><outputfile.txt>
another way we can use nessus nskipfish ,BurpSuite
11、make a conclusion
The reported Vulnerability have to to be tested manually and confirmed since the vulnerability repprted by the scanners my be false positives at times.
