Symantec Enterprise Firewall/VPN Appliances 100, 200, and 200R running firmware before 1.63 and Gateway Security 320, 360, and 360R running firmware before 622 uses a default read/write SNMP community string, which allows remote attackers to alter the firewall's configuration file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/17471
http://www.securityfocus.com/bid/11237
http://www.kb.cert.org/vuls/id/173910
http://securityresponse.symantec.com/avcenter/security/Content/2004.09.22.html