This indicates an attack attempt against a Privilege Escalation vulnerability in HP SiteScope.
The vulnerability is caused by an error when the vulnerable application handles a specially crafted URI. It allows remote attackers to escalate their privileges on vulnerable systems.
HP SiteScope 11.13
HP SiteScope 11.24.391 and prior
HP SiteScope 11.30.521 and prior
Privilege Escalation: Remote attackers can leverage their privilege on the vulnerable systems.
Apply the most recent upgrade or patch from the vendor