I want to audit my Solaris server using any auditing tools.
Yes, for example Solaris BSM is shipped with solaris: http://www.sun.com/software/security/audit/ .
Relying on automated audit tools is generally considered a poor idea.
I'd suggest investing in a proper pentest/vuln. as., done by people who know what the're doing.
Sounds like you might like the Solaris Security Toolkit. Blurb from Sun:
The Solaris Security Toolkit, formerly known as the JumpStart Architecture and Security Scripts (JASS) toolkit, provides a flexible and extensible mechanism to harden and audit Solaris Operating Systems (OSs). The Solaris Security Toolkit simplifies and automates the process of securing Solaris Operating Systems and is based on proven security best practices and practical customer site experience gathered over many years.
More information at http://www.sun.com/software/security/jass/