This indicates an attack attempt to exploit a SQL Injection vulnerability in Symantec IM Manager.
The vulnerability is a result of the application's failure to properly sanitize user input in the administrator interface. As a result, a remote attacker can send a crafted web page to exploit this vulnerability.
Symantec IM Manager prior to 8.4.18
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply patches or fixes, available from the website: