Various TCP/IP stacks and network applications allow remote attackers to cause a denial of service by flooding a target host with TCP connection attempts and completing the TCP/IP handshake without maintaining the connection state on the attacker host, aka the "NAPTHA" class of vulnerabilities. NOTE: this candidate may change significantly as the security community discusses the technical nature of NAPTHA and learns more about the affected applications. This candidate is at a higher level of abstraction than is typical for CVE.

The web administration interface for IBM AS/400 Firewall allows remote attackers to cause a denial of service via an empty GET request.

Check Point Firewall-1 session agent 3.0 through 4.1 generates different error messages for invalid user names versus invalid passwords, which allows remote attackers to determine valid usernames and guess a password via a brute force attack.

Directory traversal vulnerability in Extent RBS ISP web server allows remote attackers to read sensitive information via a .. (dot dot) attack on the Image parameter.

Buffer overflows in TYPSoft FTP Server 0.78 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long USER, PASS, or CWD command.

Buffer overflow in the System Monitor ActiveX control in Windows 2000 allows remote attackers to execute arbitrary commands via a long LogFileName parameter in HTML source code, aka the "ActiveX Parameter Validation" vulnerability.

Serv-U FTP Server allows remote attackers to bypass its anti-hammering feature by first logging on as a valid user (possibly anonymous) and then attempting to guess the passwords of other users.

The client authentication interface for Check Point Firewall-1 4.0 and earlier generates different error messages for invalid usernames versus invalid passwords, which allows remote attackers to identify valid usernames on the firewall.

Buffer overflow in dtterm in HP-UX 11.0 and HP Tru64 UNIX 4.0f through 5.1a allows local users to execute arbitrary code via a long -tn option.

CS&T CorporateTime for the Web returns different error messages for invalid usernames and invalid passwords, which allows remote attackers to determine valid usernames on the server.

Buffer overflow in host command allows a remote attacker to execute arbitrary commands via a long response to an AXFR query.

Buffer overflow in cu program in HP-UX 11.0 may allow local users to gain privileges via a long -l command line argument.

Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server with PASV requests, which includes the real IP address in the response when passive mode is established.

Multiple buffer overflows in LBNL tcpdump allow remote attackers to execute arbitrary commands.

eWave ServletExec JSP/Java servlet engine, versions 3.0C and earlier, allows remote attackers to cause a denial of service via a URL that contains the "/servlet/" string, which invokes the ServletExec servlet and causes an exception if the servlet is already running.

eWave ServletExec 3.0C and earlier does not restrict access to the UploadServlet Java/JSP servlet, which allows remote attackers to upload files and execute arbitrary commands.

The Alabanza Control Panel does not require passwords to access administrative commands, which allows remote attackers to modify domain name information via the nsManager.cgi CGI program.

The mailguard feature in Cisco Secure PIX Firewall 5.2(2) and earlier does not properly restrict access to SMTP commands, which allows remote attackers to execute restricted commands by sending a DATA command before sending the restricted commands.

Heap overflow in WebConfig in Mdaemon 3.1.1 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long URL.

Heap overflow in Worldclient in Mdaemon 3.1.1 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long URL.