GreenSQL Firewall (greensql-fw), possibly before 0.9.2 or 0.9.4, allows remote attackers to bypass the SQL injection protection mechanism via a WHERE clause containing an expression such as "x=y=z", which is successfully parsed by MySQL.
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
Link | Tags |
---|---|
http://sla.ckers.org/forum/read.php?16%2C24367 | |
http://www.greensql.net/security | vendor advisory |
http://bugs.mysql.com/bug.php?id=39337 | exploit |
http://osvdb.org/48910 | vdb entry exploit |
http://www.greensql.net/node/89 | patch |
http://www.greensql.net/node/98 | patch |