This indicates an attack attempt to exploit a blind SQL injection vulnerability in Symantec Web Gateway.
The vulnerability is a result of the application's failure to properly sanitize user input before using it in a SQL query. As a result, a remote attacker can send a crafted query to execute SQL commands on a vulnerable server.
Symantec Web Gateway 220.127.116.11
System Compromise: Remote attackers can gain control of vulnerable systems.
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