The login interface in Symantec Enterprise Firewall 6.x, when a VPN with pre-shared key (PSK) authentication is enabled, generates different responses depending on whether or not a username is valid, which allows remote attackers to enumerate valid usernames.

SMTP proxy in Symantec Enterprise Firewall (SEF) 6.5.x includes the firewall's physical interface name and address in an SMTP protocol exchange when NAT translation is made to an address other than the firewall, which could allow remote attackers to determine certain firewall configuration information.

FTP proxy in Symantec Raptor Firewall 6.5.3 and Enterprise 7.0 rewrites an FTP server's "FTP PORT" responses in a way that allows remote attackers to redirect FTP data connections to arbitrary ports, a variant of the "FTP bounce" vulnerability.

The web proxy component in Symantec Enterprise Firewall (SEF) 6.5.2 through 7.0, Raptor Firewall 6.5 and 6.5.3, VelociRaptor, and Symantec Gateway Security allow remote attackers to cause a denial of service (connection resource exhaustion) via multiple connection requests to domains whose DNS server is unresponsive or does not exist, which generates a long timeout.

Symantec Raptor Firewall 6.5 and 6.5.3, Enterprise Firewall 6.5.2 and 7.0, VelociRaptor Models 500/700/1000 and 1100/1200/1300, and Gateway Security 5110/5200/5300 generate easily predictable initial sequence numbers (ISN), which allows remote attackers to spoof connections.

Secure Webserver 1.1 in Raptor 6.5 and Symantec Enterprise Firewall 6.5.2 allows remote attackers to identify IP addresses of hosts on the internal network via a CONNECT request, which generates different error messages if the host is present.

Multiple buffer overflows in Symantec Raptor Firewall 6.5 and 6.5.3, Enterprise Firewall 6.5.2 and 7.0, VelociRaptor 500/700/1000 and 1100/1200/1300, and Gateway Security 5110/5200/5300 allow remote attackers to cause a denial of service (service termination) via (1) malformed RealAudio (rad) packets that are not properly handled by the RealAudio Proxy, or (2) crafted packets to the statistics service (statsd).

The Notify daemon for Symantec Enterprise Firewall (SEF) 6.5.x drops large alerts when SNMP is used as the transport, which could prevent some alerts from being sent in the event of an attack.

Buffer overflow in Entrust LibKmp ISAKMP library, as used by Symantec Enterprise Firewall 7.0 through 8.0, Gateway Security 5300 1.0, Gateway Security 5400 2.0, and VelociRaptor 1.5, allows remote attackers to execute arbitrary code via a crafted ISAKMP payload.

The Sun Java Plugin capability in Java 2 Runtime Environment (JRE) 1.4.2_01, 1.4.2_04, and possibly earlier versions, does not properly restrict access between Javascript and Java applets during data transfer, which allows remote attackers to load unsafe classes and execute arbitrary code by using the reflection API to access private Java packages.

The DNS proxy (DNSd) for multiple Symantec Gateway Security products allows remote attackers to poison the DNS cache via a malicious DNS server query response that contains authoritative or additional records.

Unknown vulnerability in the DNSd proxy, as used in Symantec Gateway Security 5400 2.x and 5300 1.x, Enterprise Firewall 7.0.x and 8.x, and VelociRaptor 1100/1200/1300 1.5, allows remote attackers to poison the DNS cache and redirect users to malicious sites.

Buffer overflow in the Internet Key Exchange version 1 (IKEv1) implementation in Symantec Dynamic VPN Services, as used in Enterprise Firewall, Gateway Security, and Firewall /VPN Appliance products, allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted IKE packets, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1.

The HTTP proxy in Symantec Gateway Security 5000 Series 2.0.1 and 3.0, and Enterprise Firewall 8.0, when NAT is being used, allows remote attackers to determine internal IP addresses by using malformed HTTP requests, as demonstrated using a get request without a space separating the URI.

The HTTP proxy for Symantec Enterprise Firewall (SEF) 7.0 allows proxy users to bypass pattern matching for blocked URLs via requests that are URL-encoded with escapes, Unicode, or UTF-8.